HERE IS CABLES.INF Frequently Used Cables and Connectors Pin Assignment for the Serial Port (RS-232C), 25-pin and 9-pin -------------------------------------------------------------- DB-25 DB-9 in # Pin # Name EIA CCITT DTE-DCE Description ----- ----- ----- ----- ----- ------- ------------------- 1 FG AA 101 ---- Frame Ground/Chassis GND 2 3 TD BA 103 ---> Transmitted Data, TxD 3 2 RD BB 104 <--- Received Data, RxD 4 7 RTS CA 105 ---> Request To Send 5 8 CTS CB 106 <--- Clear To Send 6 6 DSR CC 107 <--- Data Set Ready 7 5 SG AB 102 ---- Signal Ground, GND 8 1 DCD CF 109 <--- Data Carrier Detect 9 -- -- - - Positive DC test voltage 10 -- -- - - Negative DC test voltage 11 QM -- - <--- Equalizer mode 12 SDCD SCF 122 <--- Secondary Data Carrier Detec 13 SCTS SCB 121 <--- Secondary Clear To Send 14 STD SBA 118 ---> Secondary Transmitted Data 15 TC DB 114 <--- Transmitter (signal) Clock 16 SRD SBB 119 <--- Secondary Receiver Clock 17 RC DD 115 ---> Receiver (signal) Clock 18 DCR -- - <--- Divided Clock Receiver 19 SRTS SCA 120 ---> Secondary Request To Send 20 4 DTR CD 108.2 ---> Data Terminal Ready 21 SQ CG 110 <--- Signal Quality Detect 22 9 RI CE 125 <--- Ring Indicator 23 -- CH 111 ---> Data rate selector 24 -- CI 112 <--- Data rate selector 25 TC DA 113 <--- Transmitted Clock 1 13 1 5 _______________________________ _______________ \ . . . . . . . . . . . . . / \ . . . . . / RS232-connectors \ . . . . . . . . . . . . / \ . . . . / seen from outside --------------------------- ----------- of computer. 14 25 6 9 DTE : Data Terminal Equipment (i.e. computer) DCE : Data Communications Equipment (i.e. modem) RxD : Data received; 1 is transmitted "low", 0 as "high" TxD : Data sent; 1 is transmitted "low", 0 as "high" DTR : DTE announces that it is powered up and ready to communicate DSR : DCE announces that it is ready to communicate; low=modem hangup RTS : DTE asks DCE for permission to send data CTS : DCE agrees on RTS RI : DCE signals the DTE that an establishment of a connection is attempted DCD : DCE announces that a connection is established Nullmodem-cable, 3/7-wire, 25-pin <-> 25-pin (InterLink/LapLink/Fastwire 2) --------------------------------------------------------------------------- 2 TxD DDDD>DDDD RxD 3 ? 3 RxD DDDDDDDD CTS 5 5 CTS DDDDDDAD DSR 6 1 13 _______________________________ \ . . . . . . . . . . . . . / connector seen from the outside \ . . . . . . . . . . . . / of DTE/DCE. --------------------------- 14 25 Pin Assignment for (Parallel Port) Centronics Printer Connector (TTL Logic) (Amphenol 57-30360). IN: computer->printer, OUT: printer->computer --------------------------------------------------------------------------- 1 /STROBE IN Normal=High, Data read-in when Low for at least 0.5f, pair 2 DATA 0 IN (Pair with pin 20) Least significant Bit 3 DATA 1 IN (Pair with pin 21) 4 DATA 2 IN (Pair with pin 22) 5 DATA 3 IN (Pair with pin 23) 6 DATA 4 IN (Pair with pin 24) 7 DATA 5 IN (Pair with pin 25) 8 DATA 6 IN (Pair with pin 26) 9 DATA 7 IN (Pair with pin 27), Most significant Bit 10 /ACK OUT w0,5fs pulse, low=data received and printer ready, pair 28 11 BUSY OUT High: printer is busy, cannot accept data, pair with pin 2 12 PE OUT High=printer out of paper (older printers: GND) 13 SELECT OUT High:printer is in the selected state (On-Line) (old: N/C) 14 /AF IN low=paper fed 1 line after printing, not always used/old: D 15 N/C -- older printers: GND 16 GND -- Logic Ground Level (Signal Ground) 17 GND -- Chassis Ground 18 +5V -- Printer's +5V DC 80mA max., not always used 19-30 GND -- Signal Ground 31 /INIT IN Normal=High, Low for w0,5fs=printer RESET, buffer cleared, i 32 /ERROR OUT Low=Paper End State, Off-Line State, or Error State, pair 33 GND -- Signal Ground, sometimes External Ground 34 N/C -- (older printers: CLK, pair with pin 33) 35 +5V +5V DC through a 4.7Kj resistor, not always used, sometimes: T T 36 /SLCTIN IN Low=Data Entry Possible, High=Printer Off-Line, older prin rs Pin Assignment for Parallel Port DB25 Connector IN: printer->computer, OUT: computer->printer ---------------------------------------------------- 1 /STROBE OUT 2 DATA 0 OUT 1 13 3 DATA 1 OUT _______________________________ 4 DATA 2 OUT \ . . . . . . . . . . . . . / connector seen 5 DATA 3 OUT \ . . . . . . . . . . . . / from the outside 6 DATA 4 OUT --------------------------- of computer. 7 DATA 5 OUT 14 25 8 DATA 6 OUT 9 DATA 7 OUT 10 /ACK IN 11 BUSY IN 12 PE IN 13 SELECT IN 14 /AF OUT 15 /ERROR IN 16 /INIT OUT 17 /SLCTIN OUT 18 N/C -- 19-25 GND -- LapLink/InterLink/Lantastic Z/Fastwire 2 parallel port cable, 25-pin DB25 ------------------------------------------------------------------------- 2 D0 DDD>DD ERROR 15 3 D1 DDD>D SELECT 13 1 13 4 D2 DDD>DDDDD PE 12 _______________________________ 5 D3 DDD>DDDD ACK 10 \ . . . . . . . . . . . . . / 6 D4 DDD>DDD BUSY 11 \ . . . . . . . . . . . . / 15 ERROR DD Floppy Amstrad -> Floppy Amstrad->Po r 18 N/C 1 DDDDDDDDD 1 19 DDDDDDDDD 2 1DDD1 +1 19 High Density 2 DDDDDDDDD 3 20 DDD DDD 4 2DDD2 GN 20 N/C 3 DDDDDDDDD 5 21 DDD DDD 6 3DDD3 GN 21 N/C 4 DDDDDDDDD 7 22 DDDDDDDDD 8 4DDD4 +5 22 Index 5 DDDDDDDDD 9 23 DDDDDDDDD 10 23 Drive Select 0 6 DDDDDDDDD 11 24 DDDDDDDDD 12 24 Drive Select 1 7 DDDDDDDDD 13 25 DDD DDD 14 25 N/C 8 DDDDDDDDD 15 26 DDDDDDDDD 16 26 Motor On 9 DDDDDDDDD 17 27 DDDDDDDDD 18 27 Direction 10 DDDDDDDDD 19 28 DDDDDDDDD 20 28 Step 11 DDDDDDDDD 21 29 DDDDDDDDD 22 29 Write Data 12 DDDDDDDDD 23 30 DDDDDDDDD 24 30 Write Gate 13 DDDDDDDDD 25 31 DDDDDDDDD 26 31 Track 00 14 DDDDDDDDD 27 32 DDDDDDDDD 28 32 Write Protect 15 DDDDDDDDD 29 33 DDDDDDDDD 30 33 Read Data 16 DDDDDDDDD 31 34 DDDDDDDDD 32 34 Side Select 17 DDDDDDDDD 33 35 DDDDDDDDD 34 35 Disk Change 18 DDD 36 DDD 36 GND MAC SCC Serial Communication Connector, RS-422 (9-pin Sub-D (DB9)) ------------------------------------------------------------------ 1 GND 2 +5V 1 5 3 GND _______________ 4 TxD+ \ . . . . . / 5 TxD- \ . . . . / 6 +12V ----------- 7 HSKi 6 9 8 RxD+ 9 RxD- MAC SCC Serial Communication Connector, RS-422 (8-pin mini-DIN) --------------------------------------------------------------- 1 HSKo 2 HSKi 3 TxD- 4 GND 5 RxD- 6 TxD+ 7 -- 8 RxD+ Atari Mouse Connector (9-pin Sub-D) --------------------------------------- 1 up/XB 2 down/XA 1 5 3 left/YA _______________ 4 right/YB \ . . . . . / 5 -- \ . . . . / 6 left button ----------- 7 shield 6 9 8 GND 9 right button Amiga Mouse Connector (9-pin Sub-D) ----------------------------------- 1 up/V 2 down/H 1 5 3 right/VQ _______________ 4 left/HQ \ . . . . . / 5 -- \ . . . . / 6 left button ----------- 7 +5V 6 9 8 GND 9 right button Microsoft Mouse on TI-99/4A --------------------------- DB 9 MOUSE END PORT 1 TI RS232 pin 2 pin 2 1 5 pin 3 pin 3 _______________ pin 4 pin 6 \ . . . . . / pin 5 pin 7 \ . . . . / ----------- DB 9 MOUSE END PORT 2 TI RS232 6 9 -------------- --------------- PIN 4 PIN 6 PIN 5 PIN 7 PIN 2 PIN 14 PIN 3 PIN 16 -- Harvey Stein epartment of Mathematics Hebrew University hjstein@math.huji.ac.il ================================================================== MACINTOSH-SERIAL STUFF Brian's Mac Serial Port Summary [last revised: 12 September 1996] The newest revision of this document is always available as a link from URL http://www.cs.wisc.edu/~tuc/mac/ Send corrections to: tuc@cs.wisc.edu ============================================================================== Part0: Legal Mumbo-Jumbo This document (c)1996 by Brian Cole (tuc@cs.wisc.edu). The information contained herein is believed to be accurate but is not guaranteed. Use at your own risk. Archive sites may maintain a copy of this Summary so long as they allow free access from any site worldwide (no domain restrictions, no reverse DNS lookup tests). Individuals may maintain a copy of this Summary for their own personal use, but indirect HTML links are preferred. This Summary may not be sold or reprinted without explicit permission from the author, though permission will usually be granted in exchange for one copy of the magazine/CD-ROM/newsletter/whatever, so don't be afraid to ask. In any case, this document must remain in its original mono-spaced ASCII form. No compression (.Z, .gz, .sit, .cpt, .sea), expansion (.hqx, .uu), translaton (.rtf, .etx, .html), or other alteration is allowed. ============================================================================== Part 1: Connector Pinouts -------------------------- First, here are the pinouts. These are for male connectors, the pins are pointing towards your eyes. Female connectors are mirror images of these. miniDIN-8 DB-25 ,----v----. ,----------------------------------------------------. / \ \ 01 02 03 04 05 06 07 08 09 10 11 12 13 / | 6 7 8 | \ 14 15 16 17 18 19 20 21 22 23 24 25 / | | `------------------------------------------------' | 3 4 5 | | | DE-9 |_ 1 2 _| ,---------------------. | | \ 1 2 3 4 5 / `--.___,--' \ 6 7 8 9 / `-----------------' ibm apple(early macs and LaserWriters) pin# DIN-8 DB-25 DE-9 DE-9 ------ ------ ------ ------ ------ shield gnd gnd gnd gnd 1 HSKo gnd DCD gnd 2 *HSKi TD RD +5v 3 TxD- RD TD SG 4 SG RTS DTR TxD+ 5 RxD- CTS SG TxD- 6 TxD+ DSR DSR +12v(HSKo) 7 GPi SG RTS *HSKi(DSR) 8 *RxD+ DCD CTS *RxD+ 9 +dcv RI RxD- 10 -dcv (DC test voltage) [DCE->DTE] 11 QM 12 (S)DCD 13 (S)CTS 14 (S)TD, NS, [fault on IW1] 15 TC [DCE->DTE] 16 (S)RD, DCT 17 RC 18 DCR 19 (S)RTS 20 DTR 21 SQ 22 RI 23 data rate selector 24 (TC) [DTE->DCE] 25 busy G +5v (between pins 4 and 5; GeoPort only) *HSKi can also be used for External Clock *ground RxD+ to SG to emulate RS232 (leave TxD+ floating) ============================================================================ Part 2: Useful Cables ---------------------- RTS/CTS control flow cable (DCE device must be set to ignore drops in DTR.) Din-8 DB-25 (DCE) ----------------- ------------------ HSKo 1 ----> 4, 20 RTS, DTR HSKi 2 <---- 5 CTS TxD- 3 ----> 2 TD SG, RxD+ 4, 8 ---- 7 SG RxD- 5 <---- 3 RD GPi 7 <---- 8 DCD gnd shield ---- shield gnd Null modem cable [note: some DTE devices may need RTS and DTR swapped on the DB-25 side.] Din-8 DB-25 (DTE) ----------------- ------------------ HSKo 1 ----> 5 CTS HSKi 2 <---- 4 RTS TxD- 3 ----> 3 RD SG, RxD+ 4, 8 ---- 7 SG RxD- 5 <---- 2 TD GPi 7 <---[ 20, 8, 6 DTR, DCD, DSR (DTR holds DCD&DSR high) gnd shield ---- shield gnd The classic "Mac to ImageWriter I" cable Din-8 DB-25 (DTE) ----------------- ------------------ HSKo 1 ----> 8, 6 DCD, DSR HSKi 2 <---- 20 DTR TxD- 3 ----> 3 RD SG, RxD+ 4, 8 ---- 7 SG RxD- 5 <---- 2 TD GPi 7 <---- 14 (paper out or other fault) gnd shield ---- shield gnd ============================================================================ Part 3: Signals ---------------- What do these things stand for? SG signal ground gnd safety ground HSKo handshake out HSKi handshake in TxD transmit data RxD receive data GPi general purpose input TD transmit data RD receive data RTS request to send CTS clear to send DSR data set ready DCD data carrier detect DTR data terminal ready RI ring indicator SQ signal quality detect (S)TD sec. transmit data (S)RD sec. receive data (S)DCD sec. data carrier detect (S)CTS sec. clear to send (S)RTS sec. request to send RC receiver clock TC transmitter clock (TC) ext. transmitter clock NS new sync (Bell 208A) DCT divided clock, transmitter (Bell 208A) QM equalizer mode (Bell 208A) DCR divided clock, receiver (Bell 208A) ============================================================================ Part 4: Unuseful Cables ------------------------ Note: This is for my own reference. Nobody but me should care about these. Beige cable with "BusinessLand" in red letters. RxD+ is not tied to SG but is left floating, so the signals may be weak for CS-232. Also, while HSKi is tied to CTS, RTS is left floating, so this cable is "download only". Din-8 DB-25 (DCE) ----------------- ------------------ HSKo 1 ----> 20 DTR HSKi 2 <---- 5 CTS TxD- 3 ----> 2 TD SG 4 ---- 7 SG RxD- 5 <---- 3 RD gnd shield ---- shield gnd Grey cable, unmarked, with round (not squared) DIN-8 connector. The signal ground is tied to the safety ground--odd, but probably ok in practice. HSKi is tied to both CTS and DCD--it seems to me that the mac won't be able to see either CTS or DCD drop because the other will still be high. Din-8 DB-25 [DCE] ----------------- ------------------ HSKo 1 ----> 20 DTR HSKi 2 <---- 5, 8 CTS, DCD TxD- 3 ----> 2 TD SG, RxD+ 4, 8 ---- 1, 7 gnd, SG RxD- 5 <---- 3 RD gnd shield ---- shield gnd From the American bargain bin HSKo is not connected. The signal ground is tied to the safety ground. Din-8 DB-25 [DTE] ----------------- ------------------ HSKo 1 ----> nc HSKi 2 <---- 20 DTR TxD- 3 ----> 3 RD SG, RxD+ 4, 8 ---- 1, 7 gnd, SG RxD- 5 <---- 2 TD gnd shield ---- shield gnd ============================================================================ ============================================================================ MACINTOSH MONITOR STUFF Brian's Mac Monitor Summary [last revised: 2 December 1996] The newest revision of this document is always available as a link from URL http://www.cs.wisc.edu/~tuc/mac/ Send corrections to: tuc@cs.wisc.edu ============================================================================== Part0: Legal Mumbo-Jumbo This document (c)1996 by Brian Cole (tuc@cs.wisc.edu). The information contained herein is believed to be accurate but is not guaranteed. Use at your own risk. Archive sites may maintain a copy of this Summary so long as they allow free access from any site worldwide (no domain restrictions, no reverse DNS lookup tests). Individuals may maintain a copy of this Summary for their own personal use, but indirect HTML links are preferred. This Summary may not be sold or reprinted without explicit permission from the author, though permission will usually be granted in exchange for one copy of the magazine/CD-ROM/newsletter/whatever, so don't be afraid to ask. In any case, this document must remain in its original mono-spaced ASCII form. No compression (.Z, .gz, .sit, .cpt, .sea), expansion (.hqx, .uu), translaton (.rtf, .etx, .html), or other alteration is allowed. ============================================================================== Part1: Sense Codes setting pin04 pin07 pin10 available resolutions -------- ------- ------- ------- ----------------------------------------- rgb12" pin11 open pin11 512x384 rgb14" pin11 open open 640x480 (aka. rgb13", mono12") rgb16" pin10 open pin04 832x624 rgb19" pin07 pin04 open 1024x768 rgb21" pin11 pin11 pin11 1152x870 multi15" pin11 pin10 pin07 640x480, 832x624 multi17" pin11 anode cathode 640x480, 832x624, 1024x768 multi20" pin11 cathode anode 640x480, 832x624, 1024x768, 1152x870 1280x960, 1280x1024 rgb15" open pin11 open 640x870 (aka. color portrait) mono15" open pin11 pin11 640x870 (aka. full-page, portrait) mono21" open open pin11 1152x870 (aka. two-page monchrome) VGA/SVGA open pin10 pin07 640x480, 800x600, 1024x768 NTSC mon pin11 pin11 open 512x384-under, 640x480-over NTSC enc cathode 07&anod 10&anod 512x384-under, 640x480-over PAL mon 07&cath 04&cath anode 640x480-under, 768x576-over PAL enc 07&10 04&10 04&07 640x480-under, 768x576-over notes: * Not all Macs support all modes. * If more than one resolution is supported, choose among them via the "Monitors" control panel (but read the note above). * Somebody tell me how Apple's MutipleScan 14" display signals that it can do 640x480@67 and 800x600, but not 832x624@75. * "anode" and "cathode" denote a diode bridging the pins. The ringed end is the cathode. (Radio Shack part 276-1122) * The 1280x___ resolutions have been added to the list of supported resolutions list for the multiscan20" sense code, but this is speculation on my part, though it does explain experimental data. * In the absence of additional conversion hardware, NTSC and PAL signals are black&white only. * I don't know what the difference between Monitor ("mon") and Encoder ("enc") modes is for NTSC and PAL, so please clue me in. * Tell me why the rgb21" and mono21" are considered different modes but rgb14" and mono12" are considered the same mode. * Some Apple video hardware supports a different sense pin combination for 15" portrait displays with non-Apple timings (If you know about this, please clue me in). ============================================================================== Part2: Refresh Rates Specs for the various resolutions supported by Apple hardware. resolution Vert Hz Horiz KHz Dot Clock MHz ---------------- ------- --------- ------------- 1280x1024 Apple 75 ? ? (see Part1 note) 1280x 960 Apple ? ? ? (see Part1 note) 1152x 870 Apple 75.08 68.7 100 1024x 768 Apple 74.93 60.24 80 832x 624 Apple 74.55 49.7 57.63 640x 870 Apple 75.08 68.9 57.2832 640x 480 Apple 66.67 35.0 30.24 512x 384 Apple 60.15 24.48 15.6672 640x 870 non-Apple ? ? ? (Radius?, RasterOps?) 1280x1024 VESA 75 ? ? 1280x 960 VESA 75 ? ? 1024x 768 VESA 75 ? ? 1024x 768 SVGA 72 ? ? 1024x 768 VESA 70 56.5 ? 1024x 768 VESA 60 48.8 64 800x 600 VESA 75 ? ? 800x 600 VESA 72 48.1 ? 800x 600 VESA 60 37.9 ? 800x 600 SVGA 55.98 35.16 36 640x 480 VGA 59.95 31.47 25.175 NTSC 59.94 15.7 12.2727 PAL 50.00 15.625 14.75 notes: * There are 4 different 640x480 modes -- Apple, VGA, NTSC, and PAL. * Dot clock is the rate at which pixels must be sent to the monitor. * NTSC and PAL are interleaved. ============================================================================== Part3: Pinouts First, here are the connectors. These are for male connectors, the pins are pointing towards your eyes. Female connectors are mirror images of these. DA-15 DE-15 ,--------------------------------. ,-------------------------. \ 01 02 03 04 05 06 07 08 / \ 01 02 03 04 05 / \ / \ 06 07 08 09 10 / \ 09 10 11 12 13 14 15 / \ 11 12 13 14 15 / `--------------------------' `-------------------' 14-pin PowerBook DE-9 /==-==-==-==-==-==-==\ ,-------------------------. / 01 02 03 04 05 06 07 \ \ 1 2 3 4 5 / | | \ / | 08 09 10 11 12 13 14 | \ 6 7 8 9 / +-==-==-==-==-==-==-==-+ `-------------------' HDI-45 AudioVision ,--------------------------------------. / ,------------------------------------. \ | | 35 36 37 38 39 40 41 42 43 44 45 | | | `-. 28 29 30 31 32 33 34 ,-' | | |:: 19 20 21 22 23 24 25 26 27 | | | ,-' 12 13 14 15 16 17 18 `-. | | | 01 02 03 04 05 06 07 08 09 10 11 | | | `------------------------------------' | `----------------------------------------' Mac SVGA VGA TTL DA-15 DE-15 HDI45 pb-14 DE-9 DE-9 ----- ----- ----- ----- ----- ----- shell shell safety ground (note 1) shell shell shell shell 02 01 red signal 27 14 1 3 01 06 red ground 26 7 6 05 02 green signal (note 2) 11 4 2 4 06 07 green ground 10 11 7 09 03 blue signal 45 8 3 5 13 08 blue ground 44 1 8 04 11 sense pin 0 (note 5) 8 13 07 12 sense pin 1 (notes 5, 4) 9 10 10 04 sense pin 2 (note 5) 18 9 03 composite sync signal (note 3) 34 12 15 13 horizontal sync signal 42 2 4 8 14 horizontal sync ground (note 3) ? 3 12 14 vertical sync signal 33 6 5 9 11 10 ground (note 6) 43 5 9 1,2 monitor ID 31,32,41 intensity 6 monochrome signal 7 notes: * I'm unsure how gender terms apply to the flat 14-pin PowerBook connector. Pictured is the connector that would be inserted into the back of a PowerBook. * Though it must have one, I have yet to find a pinout that lists a horizontal sync ground for the 45-pin "AudioVision" connector. * Mac pin 08 is not used (reserved for a fourth sense pin??), and neither are SVGA pins 05/09/15. * Some pinouts for the rare 9-pin VGA connector (the 15-pin one is typically used instead) reverse the roles of pins 4 and 5. I've seen DE-9 VGA monitors both ways. * TTL signals (EGA/CGA) are not compatible with the analog signals used by Mac/SVGA/VGA. Don't blindly try to convert between them. * EGA has "secondary" r/g/b lines on pins 2/6/7. What are they? (1) also signal ground for NTSC and PAL (2) also monochrome signal (VGA/NTSC/PAL); also sync-on-green (3) mac-to-vga adapter sync signals: mac14-vga10, mac12-vga14, mac15-vga13 (or sometimes mac03-vga13) (4) leave VGA sense1 open for color, ground it for monochrome (5) See part1 for Mac sense codes. (6) ground for sense pins and signals without specified grounds ============================================================================= ============================================================================= ============================================================================ SCSI-STUFF QUESTION: How can I check a passive SCSI terminator? ANSWER From: stevel@coos.dartmouth.edu (Steve Ligett) ==== With an Ohmmeter: The terminator contains 18 220-ohm resistors from signals to TERMPWR, and 18 330-ohm resistors from those signals to GROUND. I've drawn that below: TERMPWR --+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ | | | | | | | | | | | | | | | | | | R1 R1 R1 R1 R1 R1 R1 R1 R1 R1 R1 R1 R1 R1 R1 R1 R1 R1 | | | | | | | | | | | | | | | | | | sig o o o o o o o o o o o o o o o o o o | | | | | | | | | | | | | | | | | | R2 R2 R2 R2 R2 R2 R2 R2 R2 R2 R2 R2 R2 R2 R2 R2 R2 R2 | | | | | | | | | | | | | | | | | | --+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ GROUND R1 = 220 Ohms, R2 = 330 Ohms When you measure from any one signal to termpower, you aren't measuring that resistor in isolation, you are measuring that resistor IN PARALLEL with the combination of the corresponding 330 ohm Differential SCSI Connector Pinouts ---------------------------------------- --------------------------------- | SCSI | | MINI | | | SCSI | | MINI | | | SIGNAL | DD-50P | MICRO | DD-50SA | | SIGNAL | DD-50P | MICRO|DD-50SA --------------------------------------- --------------------------------- | -GND | 2 | 26 | 34 | | (open) | 1 | 1 | 1 | | -DB(0) | 4 | 27 | 2 | | +DB(0) | 3 | 2 | 18 | | -DB(1) | 6 | 28 | 19 | | +DB(1) | 5 | 3 | 35 | | -DB(2) | 8 | 29 | 36 | | +DB(2) | 7 | 4 | 3 | | -DB(3) | 10 | 30 | 4 | | +DB(3) | 9 | 5 | 20 | | -DB(4) | 12 | 31 | 21 | | +DB(4) | 11 | 6 | 37 | | -DB(5) | 14 | 32 | 38 | | +DB(5) | 13 | 7 | 5 | | -DB(6) | 16 | 33 | 6 | | +DB(6) | 15 | 8 | 22 | | -DB(7) | 18 | 34 | 23 | | +DB(7) | 17 | 9 | 39 | | -DB(P) | 20 | 35 | 40 | | +DB(P) | 19 | 10 | 7 | | GND | 22 | 36 | 8 | |DIFSENS | 21 | 11 | 24 | | GND | 24 | 37 | 25 | | GND | 23 | 12 | 41 | |TERMPWR | 26 | 38 | 42 | |TERMPWR | 25 | 13 | 9 | | GND | 28 | 39 | 10 | | GND | 27 | 14 | 26 | | -ATN | 30 | 40 | 27 | | +ATN | 29 | 15 | 43 | | GND | 32 | 41 | 44 | | GND | 31 | 16 | 11 | | -BSY | 34 | 42 | 12 | | +BSY | 33 | 17 | 28 | | -ACK | 36 | 43 | 29 | | +ACK | 35 | 18 | 45 | | -RST | 38 | 44 | 46 | | +RST | 37 | 19 | 13 | | -MSG | 40 | 45 | 14 | | +MSG | 39 | 20 | 30 | | -SEL | 42 | 46 | 31 | | +SEL | 41 | 21 | 47 | |-C/D | 44 | 47 | 48 | | +C/D | 43 | 22 | 15 | | -REQ | 46 | 48 | 16 | | +REQ | 45 | 23 | 32 | | -I/O | 48 | 49 | 33 | | +I/O | 47 | 24 | 49 | | GND | 50 | 50 | 50 | | GND | 49 | 25 | 17 | ---------------------------------------- ---------------------------------- CONNECTOR TYPES: DD-50SA _________________________ MINI-MICRO DD-50P | ------------------- | ____________________ ______ _____ |17 \. . . . . . . . . /1 | | _________________ | 49| . . . . . .|1 |33 \. . . . . . . . /18 | | 1\ - - - - - - -/25| 50| . . . . . .|2 |50 \. . . . . . . / 34 | | 26\- - - - - - -/50| ------------ | ------------- | | ------------- | ribbon cable Old style Sun SCSI "SCSI-2" male male __________________ ( 1 25 ) \ ++++++++++++++ / \ 26 50/ -------------- "Centronics" 50 male (use pin numbers for MINI-MICRO) (VIEWED FROM FACE OF CONNECTOR - USE VENDOR NUMBERING SYSTEM AS SPECIFIED) 16 bit Wide SCSI-3 "P" (Primary) Connector pinout (single-ended) -------------------- -------------------- | SCSI | HIGH DEN | | SCSI | HIGH DEN | | SIGNAL | 68 PIN | | SIGNAL | 68 PIN | -------------------- -------------------- | GND | 1 | | -DB(12)| 35 | | GND | 2 | | -DB(13)| 36 | | GND | 3 | | -DB(14)| 37 | | GND | 4 | | -DB(15)| 38 | | GND | 5 | | -DB(P1)| 39 | | GND | 6 | | -DB(0) | 40 | | GND | 7 | | -DB(1) | 41 | | GND | 8 | | -DB(2) | 42 | | GND | 9 | | -DB(3) | 43 | | GND | 10 | | -DB(4) | 44 | | GND | 11 | | -DB(5) | 45 | | GND | 12 | | -DB(6) | 46 | | GND | 13 | | -DB(7) | 47 | | GND | 14 | | -DB(P) | 48 | | GND | 15 | | GND | 49 | | GND | 16 | | GND | 50 | |TERMPWR | 17 | |TERMPWR | 51 | |TERMPWR | 18 | |TERMPWR | 52 | | RSRVD | 19 | | RSRVD | 53 | | GND | 20 | | GND | 54 | | GND | 21 | | -ATN | 55 | | GND | 22 | | GND | 56 | | GND | 23 | | BSY | 57 | | GND | 24 | | -ACK | 58 | | GND | 25 | | -RST | 59 | | GND | 26 | | -MSG | 60 | | GND | 27 | | -SEL | 61 | | GND | 28 | | -C/D | 62 | | GND | 29 | | -REQ | 63 | | GND | 30 | | -I/O | 64 | | GND | 31 | | -DB(8) | 65 | | GND | 32 | | -DB(9) | 66 | | GND | 33 | | -DB(10)| 67 | | GND | 34 | | -DB(11)| 68 | --------------------- --------------------- ____________________________ | _______________________ | | 1\ - - - - - - - - - - /34 | | 35\- - - - - - - - - -/68 | | ------------------- | ---------------------------- "WIDE SCSI-3 P" male IBM's "Not really SCSI" connectors: [Editor(GF)] Note that this connector is NON-COMPLIANT WITH ANY SCSI STANDARD! 60 pin Burndy connector as used on IBM RS/6000 systems: Pin Signal Pin Signal --- ------ --- ----- 1 Gnd 31 Gnd 2 -DB(0) 32 -ATN 3 Gnd 33 Gnd 4 -DB(1) 34 Gnd 5 Gnd 35 Gnd 6 -DB(2) 36 -BSY 7 Gnd 37 Gnd 8 -DB(3) 38 -ACK 9 Gnd 39 Gnd 10 -DB(4) 40 -RST 11 Gnd 41 Gnd 12 -DB(5) 42 -MSG 13 Gnd 43 Gnd 14 -DB(6) 44 -SEL 15 Gnd 45 Gnd 16 -DB(7) 46 -C/D 17 Gnd 47 Gnd 18 -DB(P) 48 -REQ 19 Gnd 49 Gnd 20 Gnd 50 -I/O 21 Gnd 51 Gnd 22 Gnd 52 Reserved 23 Gnd 53 Reserved 24 Gnd 54 Reserved 25 N/C 55 Reserved 26 TERMPWR 56 Reserved 27 Gnd 57 Reserved 28 Gnd 58 Reserved 29 Gnd 59 Reserved 30 Gnd 60 Reserved Table of Contents ==== ANSWER From: Gary Field (gfield@zk3.dec.com) Macintosh Plus SCSI Connector Pinouts Note that this connector is NON COMPLIANT WITH ANY SCSI STANDARD! The grounding is insufficient and does not allow for proper twisted- pair transmission line implementation. It is recommended that a short adapter cable be used to convert to the more common Centronics style 50 pin connection, rather than extend the 25 pin connection any further than necessary. The Macintosh Plus used a NCR 5380 SCSI chip controlled by the MC68000 processor. ___________________ | SCSI DB-25S | | SIGNAL pin(s) | +------------------+ DB-25S (female) | -DB(0) | 8 | _____________________________ | -DB(1) | 21 | 13\ o o o o o o o o o o o o o /1 | -DB(2) | 22 | 25\ o o o o o o o o o o o o /14 | -DB(3) | 10 | ------------------------ | -DB(4) | 23 | View from rear of computer. | -DB(5) | 11 | | -DB(6) | 12 | | -DB(7) | 13 | | -DB(P) | 20 | | GND | 7,9,14 | | GND |16,18,24 | | -ATN | 17 | | BSY | 6 | | -ACK | 5 | | -RST | 4 | | -MSG | 2 | | -SEL | 19 | | -C/D | 15 | | -REQ | 1 | | -I/O | 3 | +------------------+ Pin 25 is NOT CONNECTED in the Mac Plus implementation. Newer Macs connect TERMPWR to pin 25, but are otherwise the same. Future Domain 25 pin connector pinout Used on TMC-830/845 and TMC-850/860/885. Note: Use the Macintosh pinout above for TMC-850M, TMC-1610M, TMC-1650/1670 or MCS-600 ___________________ | SCSI | | | SIGNAL| DB-25S | +-----------------+ DB-25S (female) | -DB(0)| 14 | _____________________________ | -DB(1)| 2 | 13\ o o o o o o o o o o o o o /1 | -DB(2)| 15 | 25\ o o o o o o o o o o o o /14 | -DB(3)| 3 | ------------------------ | -DB(4)| 16 | View from rear of computer. | -DB(5)| 4 | | -DB(6)| 17 | | -DB(7)| 5 | | -DB(P)| 18 | | GND |1,6,8,13 | | GND |13,19,25 | | -ATN | 20 | | BSY | 23 | | -ACK | 22 | | -RST | 10 | | -MSG | 21 | | -SEL | 7 | | -C/D | 11 | | -REQ | 24 | | -I/O | 12 | +-----------------+ Pin 9 is NOT CONNECTED ================================================================== MISC-STUFF 2.2) SNES (Super Nintendo Ent. System) Super Nintendo Entertainment System: pinouts & protocol V1.01 (16KB) (From Christopher John Piastri) SNES controller _________ 1 | U | 20 2 | | 19 3 | | 18 4 | | 17 5 | | 16 6 | | 15 7 | | 14 8 | | 13 9 | | 12 10 |_________| 11 1 : Pad: Down 2 : Pad: Left 3 : Pad: Right 4 : Select 5 : Start 6 : Output 1 7 : Output 2 8 : Output 3 9 : Output 4 10: Gnd (pin 5 on connector) 11: nc 12: nc 13: Y 14: B 15: A 16: X 17: R 18: L 19: Pad: Up 20: nc ================================================================== POWER CONNECTORS ______________ | 0 0 0 0 | \____________/ red blk blk (or yel) End view of Big (regular) plug (or socket) NOT LOOKING AT PINS ON DRIVE!! ___,,_________ |_o__o__o__o_| [ ] red blk blk yel End view of "mini-plug" for 3.5" drives NOT LOOKING AT PINS ON DRIVE!! RED---------->+5VOLTS BLK---------->GROUND BLK---------->GROUND YEL---------->+12VOLTS ================================================================== MICE-STUFF The following are the pin-outs for Logitech mice as documented in the Logitech Mouse Technical Reference and Programming Guide. Note that the wire colors are provided only for the bus mouse. Wire colors are not available for serial or pix-port mice. Serial Mouse Logitech's Type M, Type V and Type W serial mice are available with either a standard RS232C subminiature DB9S female connector compatible with the IBM AT, or an adapter for a DB25S subminiature female connector compatible with the IBM PC/XT. Serial Pin-Out Information |------|-----------|----------------------|------------------------------------------------| |9 pin | 25 pin | Wire Name | Comments | |------|-----------|----------------------|------------------------------------------------| |shell | 1 | Protective Ground | | |3 | 2 | Receive Data | Serial data from host to mouse | |2 | 3 | Transmit Data | Serial data from mouse to host(for power only) | |7 | 4 | | RTS | |8 | 5 | CTS | Insert DATA for row 6, column 4 | |6 | 6 | DSR | | |5 | 7 | Signal Ground | | |4 | 20 | DTR | | |------|-----------|----------------------|------------------------------------------------| RTS = Request to Send CTS = Clear to Send DSR = Data Set Ready DTR = Data Terminal Ready To function correctly, both the RTS and DTR lines must be positive. The lines DTR-DSR and RTS-CTS must NOT be shorted. Implement the RTS toggle function by setting the RTS line negative and positive again. The negative pulse width is at least 100ms. After a cold boot, the RTS line is usually set to a negative level. In this case, setting the RTS line to a positive level is also considered an RTS toggle. Bus Mouse The Logitech bus mouse has a male D-subminiature or a male miniature circular connector, similar to the Microsoft InPort connector. Bus Mouse Pin-Out Information |-----------|----------------|---------------------------|--------------------------| |Wire Color | Mini-DIN Pin | Logitech P-Series Signal | Microsoft InPort Signal | |-----------|----------------|---------------------------|--------------------------| |Black | 1 | +5V | +5V | |Brown | 2 | X2 | XA | |Red | 3 | X1 | XB | |Orange | 4 | Y1 | YA | |Yellow | 5 | Y2 | YB | |Green | 6 | Left | SW1 | |Violet | 7 | Middle | SW2 | |Gray | 8 | Right | SW3 | |White | 9 | GND | Logic GND | |SHIELD | shell | Chassis | Chassis | |-----------|----------------|---------------------------|--------------------------| PS/2 (PIX) Mouse The mouse cable assembly has a six pin miniature circular (mini-DIN) plug for attaching to the host. PS/2 Pin-Out Information |-------|----------------| |Pin | WireName | |-------|----------------| |1 | DATA | |2 | Reserved | |3 | Ground | |4 | +5V Supply | |5 | CLK | |6 | Reserved | |Shield | Chassis | |-------|----------------| Bi-directional transmission is controlled by the CLK and DATA lines. Both are fed by an open collector device which lets either host or mouse force the line to "0". During non-transmission, CLK is at "1" and DATA can be at "0" or "1". The host can inhibit mouse transmission by forcing CLK to "0". If the host inhibits the mouse while it is transmitting, the byte must be retransmitted (if the inhibit state arrived before the 11th clock). Y 1996 Logitech Inc. Logitech, the Logitech logo, MouseMan, MouseWare are trademarks of Logitech. All other trademarks are the property of their respective owners. ********************************************************************** This is the pin assignment of the PS/2 mouse port on ASUS motherboard. You can make the cable by yourself or purchase it from ASUS dealers. Mouse Port DB9-Connector(#) PS/2 mouse-Port Signal(*) Signal Asus (corrected) Connector (corrected) 1 5 5 2 GND GND 2 9 4 3 CLK DATA 3 - - - NC NC 4 8 8 5 +5V +5V 5 1 7 1 DATA CLK 6 - - - - - 7 - - - - - 8 - - - NC NC ---------- 3 4 1234 12345 + + ++++ +++++ 2+ +5 + + ++++ 1+|+6 5 8 6789 | (front view) Source: c't magazin fuer computertechnik, okt 1994. page 272. (*) Please note that the connection from onboard PS/2 mouse port to the mouse connector is correct but the singal label is wrong. (#) Based on information from Harald Gattringer. See following. Jerry Lee ASUS ------------------------------------------------------------------------ From: e8425814@stud1.tuwien.ac.at (Harald Gattringer) Subject: PS2-Mouse port Date: 22 Mar 1995 15:07:40 GMT Organization: Vienna University of Technology, Austria NNTP-Posting-Host: stud1.tuwien.ac.at Signal definition of the DB9-MouseMan Adapter ! ----------------------------------------------- My Logitech MouseMan comes with an PS2/DB9 adapter. From this adapter I got the DB9/PS2 pin definition (the other signal label from Jerry Lee): Pinout on the SP3g: | Pinout of a PS2-Mouse | Socket -------------------------- | ------------------------- 1 2 3 4 | Keyboard | | 5 o o 8 | connector| | 3 4 +----------+ | PS2-mouse | 2 5 connector | || (o's are missing pins) | 1 || 6 | [] pin # signal DB9-connector PS2 (board) (MouseMan) -------------------------------------------- 1 <--GND--> 5 2 2 <--DATA-> 4 3 3 NC - - 4 <--+5V--> 8 5 5 <--CLK--> 7 1 8 NC - - / 4 2 not used \ 6 3 \------v------/ Adapter With a cable wired like the above drawing, my MouseMan works very well on the PS2 port. ------------------------------------------------------------------------ From ae873@torfree.net Mon Oct 2 20:30:21 1995 Date: Mon, 2 Oct 95 08:39 EDT To: jerry@asustek.asus.com.tw X-Personal_name: Geofffrey Sy Subject: PS2 Mouse Connector update. This is an update to the document: "http://asustek.asus.com.tw/FTP/ASUS/TechInfo/ps2-mouse.txt" Mouse Port DB9-Connector(#) PS/2 mouse-Port Signal(*) Signal Asus (corrected) Connector (corrected) 1 5 5 2 GND GND 2 9 4 3 CLK DATA 3 - - - NC NC 4 8 8 5 +5V +5V 5 1 7 1 DATA CLK 6 - - - - - 7 - - - - - 8 - - - NC NC The DB9-Connector pins-out are both correct. The original pins 5-9-8-1 connection is for older Logitech Mouseman, Serial-MousePort. These are the models that came with a DB9 connector and a DB9 to DIN adaptor. The later models of the MouseMan Serial-MousePort came with a DIN connector and a DIN to DB9 connector. The later models work with the pins 5-4-8-7 connection. ======================================================================== 3.1.1) Original VGA (31.5 KHz - 640x480) (From Sam Goldwasser) SVGA (35-37 KHz - 800x600) 15 pin sub D: 6 1 Red (Analog) 6 Red Return 11 (ID0) GND (Color) 11. . . 1 2 Green (Analog) 7 Green Return 12 (ID1) NC (Color) . . . 3 Blue (Analog) 8 Blue Retuen 13 Horzontal Sync . . . 4 Reserved 9 No Connect 14 Vertical Sync . . . 5 Ground 10 Ground 15 No Connect . . . 15 10 5 Note: Monitor ID Lines ID1,ID0=NC,G for color; G,NC for Mono. ID0 only may be used. Mono VGA is similar using only the Green Video and Return. 3.1.2) VESA VGA Standard Feature Connector (special 26-pin header) pin assignment pin assignment === ========== === ========== 1 PB 2 PG 3 PR 4 PI 5 SB 6 SG 7 SR 8 SI 9 Dot Clock 10 Blank 11 HSync 12 VSync 13 GND 14 GND 15 GND 16 GND 17 Ext Video Sel 18 Ext Sync Sel 19 Ext DotClock Sel20 N/C 21 GND 22 GND 23 GND 24 GND 25 N/C 26 N/C 3.1.3) VGA (VESA standard) (From Bob Myers) Note that many of the pins shown above as "no connects" (actually, these were sometimes used as monitor ID bits by many manufacturers) are now defined under the VESA Display Data Channel standard. This standard provides two protocols for display ID and control, including support for the full ACCESS.bus interface. The current definition of the "VGA" pinout per the DDC standard is: 6 1 Red (Analog) 6 Red Return 11 Monitor ID0 (opt.) 11. . . 1 2 Green (Analog) 7 Green Return 12 Data (SDA) . . . 3 Blue (Analog) 8 Blue Return 13 Horzontal Sync . . . 4 Reserved 9 +5 VDC (frm host)* 14 Vertical Sync . . . 5 Return 10 Sync return 15 Data clock (SCL)* . . . 15 10 5 Those signals marked with an asterisk would be supplied by the host only if the host supports the DDC2 protocol (I2C or ACCESS.bus). 3.1.4) VGA DB15-S Female DB9 Female 15-pin 9-pin assignment 1 1 Red 2 2 Green 3 3 Blue 4 - Monitor ID bit 2 5 - N/C 6 6 GND (red return) 7 7 GND (green return) 8 8 GND (blue return) 9 - N/C 10 - GND 11 - Monitor ID bit 0 12 - Minitor ID bit 1 13 4 Horizontal Sync 14 5 Vertical Sync 15 - N/C Monitor ID bit 0: reserved Monitor ID bit 1: GND = mono, OPEN = color Monochrome monitors use the green signal 3.1.5) Somewhat standard 9 pin VGA (From Sam Goldwasser) For analog VGA/SVGA measured based on my VGA to 9 pin adapter. This is pretty standard as the NEC Multisync II and others use the same pinout: Pin 1: Red Video Pin 2: Green Video Pin 3: Blue Video Pin 4: H Sync Pin 5: V Sync Pin 6: Red Return Pin 7: Green Return Pin 8: Blue Return Pin 9: Ground NOTE: IBM PGC assigns pin 4 to Composite Sync and pin 5 is a no-connect. BTW, don't use an EGA 9 pin extension cable to connect it to VGA. While this will work, the wires are not shielded or the wrong wires and you will get ghosting and ringing at vertical edges. I constructed mine using proper 75 ohm coax for the RGB and H and V sync as well (though it is not needed for the sync). 3.2) EGA 3.2.1) Standard EGA (From Brian Smither) According to the CPD-1303 user guide: Pin: 1 2 3 4 5 6 7 8 9 Analog GND GND RED GRN BLU GND --- H/HV V * DIG/NORM GND GND RED GRN BLU GND --- H/HV V /D1 GND GND RED GRN BLU INT --- H/HV V /D2/CGA GND GND RED GRN BLU INT --- H/HV V /D2/MDA GND GND --- --- --- INT GRN H/HV V /D2/EGA GND r R G B g b H/HV V r-g-b is secondary colors for 64 color EGA * Sync on green automatic if H or HV is not assigned to pin #8. SYNC: any polarity. Vertical size depends on vertical frequency and can be adjusted manually. 3.2.2) DB9 to DB15 cable (From Brian Smither) A 9-pin (monitor) to 15-pin (video card) cable can be built as follows: 9-pin F 15-pin M ------- -------- 1,2,6 --------- 5 3 --------- 1 4 --------- 2 5 --------- 3 8 --------- 13 9 --------- 14 This adapter will NOT permit you to run a standard VGA monitor from a MGA/CGA/EGA video card as the signal levels and scan rates are not compatible. It only applies to the CPD1303 and similar monitors. 3.2.3) EGA - TTL (From Sam Goldwasser) (15.74-21.85 KHz) DB-9 pin: 1 GND 6 Secondary Green Video/Intensity 2 Secondary RED Video 7 Secondary Blue Video 3 Primary RED Video 8 H Sync TTL Positive 4 Primary GREEN Video 9 V Sync TTL Negative 5 Primary BLUE Video BTW, don't use an EGA 9 pin extension cable to connect it to VGA. While this will work, the wires are not shielded or the wrong wires and you will get ghosting and ringing at vertical edges. I constructed mine using proper 75 ohm coax for the RGB and H and V sync as well (though it is not needed for the sync). 3.3) CGA - TTL (15.75 KHz - 320x200 or 640x200) DB-9 pin: 1 GND 6 Intensity 2 Unused 7 Unused 3 RED Video 8 H Sync TTL Positive 4 GREEN Video 9 V Sync TTL Positive 5 BLUE Video 3.4) IBM PCJr CGA 18-pin connector (From Dale Larson) The above pins are looking at the COMPUTER connector so 1 to 9 would be right to left on the plug from the monitor. It looks like the top row of the 18 are "A", bottom "B" and looking from the back, numbered 1-9 left-right they are labled as follows: a09 = audio a05 = red a04 = blue a07 = green a06 = inten a08 = not(line over)comp sync drive a03 = not tv hor drive b03 = hor out drive a01 = not tv vert drive b01 = vert out drive a02,b02,b04,b05,b06,b07,bo8,b09 = all grounds 3.5) Monochrome - TTL (18.43 KHz - 720x350) DB-9 pin: 1 GND 6 Intensity 2 Unused 7 Video 3 Unused 8 H Sync TTL Positive 4 Unused 9 V Sync TTL Negative 5 Unused Chapter 4) Macintosh Monitors 4.1) Mac II and Quadra (From Sam Goldwasser) Mac II Analog (35 KHz H, 66.67 Hz V - 640x480) 15 pin. Mac II and Quadra Analog (49.7 KHz H, 74.55 Hz V - 832x624) 15 pin. 1 Red Ground 8 Blue Video 2 Red Video 9 Sense 2 3 Composite Sync 11 Ground 4 Sense 0 12 Vertical Sync 5 Green Video 13 Blue Ground 6 Green Ground 14 Ground 7 Sense 1 15 Horizontal Sync 8 Reserved (+12) Chapter 5) Workstation Monitors 5.1) MacIntosh Video (From Sam Goldwasser) Mac II - analog (35 KHz H, 66.67 Hz V - 640x480) 15 pin. Mac II and Quadra - analog (49.7 KHz H, 74.55 Hz V - 832x624) 15 pin. 1 Red Ground 8 Blue Video 2 Red Video 9 Sense 2 3 Composite Sync 11 Ground 4 Sense 0 12 Vertical Sync 5 Green Video 13 Blue Ground 6 Green Ground 14 Ground 7 Sense 1 15 Horizontal Sync 8 Reserved (+12) 5.2) Analog Sun 13W3 Color Pinout: (From: comp.sys.sun.hardware pseudo-FAQ: (2gvhutINNnvd@hatteras.cs.unc.edu)). Analog: 13W3 connector: +----------------- * gnd | +------------- * vertical sync | | +--------- sense 2 | | | +----- sense common (gnd) | | | | +- composite sync | | | | | | | | | | grey red | | | | | green blue | 1o 2o 3o 4o 5o | | (O) (O) (O) 6o 7o 8o 9o 10o | | | | | | | | | +--- composite common (gnd) | | | +------- sense 0 | | +----------- sense 1 | +--------------- * gnd +------------------- * horizontal sync * May be NC. My spies tell me Sun considers these obsolete. 'green' is used by greyscale monitors for video input. Sense table - 1=nc, 0=strap to gnd Sense Type ===== ======== 0 TBD (?)) 1 Reserved 2 1280x1024, 76Hz 3 1152x900, 66Hz 4 1152x900, 76Hz, 19" 5 Reserved 6 1152x900, 76Hz, 16 or 17" 7 Nothing (no monitor connected) Chapter 6) PC Hardware 6.1) What is the pin out for ...? (From Ralph Valentino) This is a list of the pinouts to the more common PC hardware interfaces. It is by no means complete. While I have taken care not to make any mistakes, I urge you to take caution when using these tables. Also, please keep in mind that these are only tables, they are not a guide to hardware hacking and do not attempt to explain drive capabilities, signal timings, handling care, or other interface issues. As always, make sure you know what you're doing before you start hooking wires to your PC. 6.2) Connector Styles and Pin Numbering Pinout of a PS2-Mouse Socket ------------------ 3 4 2 5 || 1 || 6 [] 5pin DIN Male (xt-at keyboard) --+-- / ^ \ | 1 3 | \ 425 / ----- 6.2.1) DB15-S Male ---------------------- \ 1 2 3 4 5 / \ 6 7 8 9 10 / \ 11 12 13 14 15 / ---------------- 6.2.2) DB9 (DE-9) Male ------------- \ 1 2 3 4 5 / \ 6 7 8 9 / --------- 6.2.3) DB15 (DA-15) Male -------------------------- \ 1 2 3 4 5 6 7 8 / \ 9 10 11 12 13 14 15 / ---------------------- 6.2.4) DB25 Male ------------------------------ \ 1 2 3 4 5 7 8 ... 13 / \ 14 15 16 17 18 .......25 / -------------------------- 6.2.5) IDC-50 Male +-------------------+ | 1 3 5 7 ... 49 | | 2 4 6 8 ... 50 | +-------------------+ 6.2.6) Power Connector (Male) ___________ / \ --> Called "CEE-type (male)" | 4 3 2 1 | ------------- 6.2.7) 30 pin SIMM ------------------------------- | | ) | --|||||||||||||||||||||||||--- 1 30 6.2.8) 72 pin SIMM --------------------------------------- | | ) _ | --|||||||||||||||/ \|||||||||||||||--- 1 36 37 72 6.2.9) EISA/ISA/VLB ----------------------------------------------- | (component side) | | | | VLB __ ISA-16bit __ ISA-8bit __| ||||||||| ||||||||||| ||||||||||||||||||| A1(front)/B1(back) | | | | | | | | | | | | | | <-EISA C1/D1 E1(front)/F1(back) G1/H1 6.2.10) PCI Universal Card 32/64 bit ---------------------------------------------------------------- | PCI Component Side (side B) | | | | | | optional | | ____ mandatory 32-bit pins 64-bit pins _____| |___| |||||||--|||||||||||||||||--|||||||--|||||||||||||| ^ ^ ^ ^ ^ ^ ^ ^ b01 b11 b14 b49 b52 b62 b63 b94 6.2.11) PCI 5V Card 32/64 bit | optional | | ____ mandatory 32-bit pins 64-bit pins _____| |___| ||||||||||||||||||||||||||--|||||||--|||||||||||||| 6.2.12) PCI 3.3V Card 32/64 bit | optional | | ____ mandatory 32-bit pins 64-bit pins _____| |___| |||||||--||||||||||||||||||||||||||--|||||||||||||| 6.3) Misc / Power 6.3.1) Power Connector Male pin assignment 1 +12V 2 +12V return 3 +5V return 4 +5V 6.3.2) Speaker Connector pin assignment 1 -Speaker 2 [key] 3 GND 4 +Speaker +5V 6.3.3) Turbo Indicator Connector pin assignment 1 +5V 2 -High Speed 3 +5V 6.3.4) AT LED Power and Key Lock pin assignment 1 LED power 2 GND 3 GND 4 Key Switch 5 GND 6.3.5) AT Backup Battery pin assignment 1 Batt+ 2 [key] 3 GND 4 GND 6.3.6) Motherboard Power Connectors pin P8 assignment pin P9 assignment 1 Power Good 1 GND 2 +5v (or N.C.) 2 GND 3 +12v 3 -5v 4 -12v 4 +5v 5 GND 5 +5v 6 GND 6 +5v 6.4) MIDI 6.4.1) MIDI 5pin DIN MIDI In MIDI Out pin assignment pin assignment 1 N/C 1 N/C 2 N/C 2 GND 3 N/C 3 N/C 4 Current Src 4 Current Sink 5 Current Sink 5 Current Src 6.5) Floppy 6.5.1) Floppy Disk Controller IDC-34 Male pin assignment pin assignment 1 GND 2 Density Select 3 GND 4 (reserved) 5 GND 6 (reserved) 7 GND 8 Index 9 GND 10 Motor Enable A 11 GND 12 Drive Sel B 13 GND 14 Drive Sel A 15 GND 16 Motor Enable B 17 GND 18 Direction 19 GND 20 Step 21 GND 22 Write Data 23 GND 24 Floppy Write Enable 25 GND 26 Track 0 27 GND 28 Write Protect 29 GND 30 Read Data 31 GND 32 Head Select 33 GND 34 Disk Change Go to [Next] segment Go to [Table 'O Contents]