Cable Wiring Technical Information Secrets
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PINOUTS for FIREWIRE USB SCSI IDE SVGA EGA 13W3
COPYRIGHT 2003-2023 JAY F. KULLMANN @ PCCABLES.COMUSB Port Pinouts
Monitor Standards
13w3 Converter
Keyboard & Mouse Standards
Power Cables
Ribbon Cables
Serial RS-232, RS-422, RS-485
Firewire IEEE-1394 Standards
Printer IEEE-1284 Standards
Audio Cable Standards
Test Adapters Standards
Network Standards
Serial Adapters
DB-9 to DB-25 Adapter or Cable
Used to adapt serial ports to the proper size
25 Pin 9 Pin Signal-RS232 Connector Connector 1 n/a Protective Ground 2 3 TX Transmit 3 2 RX Recieve 4 7 RTS Request to Send 5 8 CTS Clear to Send 6 6 DSR Data set Ready 7 5 Signal Ground 8 1 DCD Data carrier detect 9 n/a + Transmit 11 n/a - Transmit 18 n/a + Recieve 20 4 DTR Data terminal ready 22 9 RI Ring Indicator 23 n/a DSRD Data signal-rate indicator 25 n/a - Recieve
DB-9 to DB-25 Adapter
Opposite of Above
TEST Adapters
Serial Port Loopback (9 Pin)
Used to verify that a port is working.
9 PIN D-SUB FEMALE
Name Pin Pin Name DCD 1 6 DSR DCD 1 9 RI RXD 2 3 TXD DTR 4 6 DSR RTS 7 8 CTS
Serial Port Loopback (25 Pin)
Used to verify that a port is working.
25 PIN D-SUB FEMALE
Name Pin Pin 1 7 2 3 4 5,8 6 11,20,22 15 17,23 18 25
Parallel Port Loopback (IBM, Checkit and Most Others)
Used to verify that a Printer port is working.
Name Pin Pin Name Strobe 1 13 Select Data Bit0 2 15 Error Acknowledge 10 16 Input Prime Busy 11 17 Select In Paper Out 12 14 Auto Feed XT
Parallel Port Loopback (Norton)
Used to verify that a port is working. Norton Utilities: Norton Diagnostics
Name Pin Pin Name Data Bit 0 2 15 Error Data Bit 1 3 13 Select Data Bit 2 4 12 Paper Out Data Bit 3 5 10 Acknowledge Data Bit 4 6 11 Busy
Power Cables
Power Supply to Motherboard AT P8-P9
Pin# Color Function 1 Orange Power Good 2 Red +5V DC 3 Yellow +12V DC 4 Blue -12V DC 5 Black Ground 6 Black Ground 7 Black Ground 8 Black Ground 9 White -5V DC 10 Red +5V DC 11 Red +5V DC 12 Red +5V DC
Power Supply to Motherboard ATX
Pin# Color Function 1 Orange +3.3V DC 2 Orange +3.3V DC 3 Black Ground 4 Red +5V DC 5 Black Ground 6 Red +5V DC 7 Black Ground 8 Gray Power OK 9 Purple +5V standby 10 Yellow +12V DC (11) Orange(22) +3.3V DC (11) Brown(22) 3.3V sense 12 Blue -12V DC 13 Black Ground 14 Green PS-ON 15 Black Ground 16 Black Ground 17 Black Ground 18 White -5V DC 19 Red +5V DC 20 Red +5V DC
Power Supply plug 5.25-inch 4-pin Molex
Pin# Color Function 1 Yellow +12V DC 2 Black Ground 3 Black Ground 4 Red +5V DC
Power supply plug 3.5-inch
Pin# Color Function 1 Yellow +12V DC 2 Black Ground 3 Black Ground 4 Red +5V DC
Monitor Reference
Hercules/Monochrome Adapter
Pin# Label Function 1 GND Ground 2 GND Ground 3 N.C. Not Connected 4 N.C. Not Connected 5 N.C. Not Connected 6 INTENSITY Intensity 7 VIDEO TTL video signal 8 H-SYNC Horizontal Synch (18.432KHz) 9 V-SYNC Vertical Synch (50Hz)
CGA Color Graphics Display Adapter
Pin# Label Function 1 GND Ground 2 GND Ground 3 RED Red color signal 4 GREEN Green color signal 5 BLUE Blue color signal 6 INTENSITY + Intensity 7 RES Reserved 8 H-SYNC Horizontal Synch 9 V-SYNC Vertical Synch
CGA Composite Video Used on Commodore systems old Apples
Pin# Label Function 1(pin) 1.5 Volt Dc Video Signal 2(shell) GND Ground
EGA Enhanced Graphics Adapter
Pin# Label Function 1 GND Ground 2 RED2 Secondary Red color signal 3 RED Red color signal 4 GREEN Green color signal 5 BLUE Blue color signal 6 GREEN2 Secondary Green color signal + Intensity 7 BLUE2 Secondary Blue color signal + Monochrome 8 H-SYNC Horizontal Synch 9 V-SYNC Vertical Synch
Color VGA Adapter
Pin# Label Function 1 RED Red color signal 2 GREEN Green color signal 3 BLUE Blue color signal 4 ID2 Monitor identification bit 2 5 N.C. Not Connected 6 GND-RED Ground Red signal 7 GND-GREEN Ground Green signal 8 GND-BLUE Ground Blue signal 9 N.C. Not Connected 10 GND-SYNC Ground Sync signal 11 ID1 Monitor identification bit 1 12 ID0 Monitor identification bit 0 13 H-SYNC Horizontal Synchronization 14 V-SYNC Vertical Synchronization 15 N.C. Not connected
13w3 Connector to VGA
Standard Converter SUN/SGI (no Vertical)
Standard Converter SUN/SGI (with Vertical)
Standard Converter POWERPC (with Vertical)
Ribbon Cables
EIDE IDE 40 Pin Cable
Pin# Signal Description Function 1 RESET Reset 2 GND Ground 3 DD7 Data Line 7 4 DD8 Data Line 8 5 DD6 Data Line 6 6 DD9 Data Line 9 7 DD5 Data Line 5 8 DD10 Data Line 10 9 DD4 Data Line 4 10 DD11 Data Line 11 11 DD3 Data Line 3 12 DD12 Data Line 12 13 DD2 Data Line 2 14 DD13 Data Line 13 15 DD1 Data Line 1 16 DD14 Data Line 14 17 DD0 Data Line 0 18 DD15 Data Line 15 19 GND Ground 20 Select Selection for Pin 20 21 DMARQ DMA Request (optional) 22 GND Ground 23 DIOW 24 GND Ground 25 DIOR 26 GND Ground 27 IORDY IDE device still busy (optional) 28 Reserved Used for Cable Select 29 DMACK DMA Acknowledge (optional) 30 GND Ground 31 INTRQ Interupt Request 32 IOCS16 16 Bit data transfer 33 DA1 Bit 1 Address bus, for addressing the Internal data register on the hard drive 34 PDIAG Passed Diag Hard Drive self test concluded 35 DA0 Bit 0 Address bus 36 DA2 Bit 2 Address bus 37 CS0 Selection Command Block Register 38 CS1 Selection Command Block Register 39 DA/SP Drive Active Hard drive is active / after slave drive Communicates its presence 40 GND Ground
Network Standards and Specs
10 Base T and 100 Base T CrossOver Cable
Plug Code Plug Code 1 T2-------- /------1 T2 2 R2- X /-2 R2 3 T3-------/ ---/--3 T3 4 nc /-------/ 4 NC 5 nc x 5 NC 6 R3---/ -----------6 R3 7 nc 7 NC 8 nc 8 NC
Category-5 10 base T Cable and Category-5 100 base T Cable
COLOR CODES FOR STANDARD WIRING Plug Color 1 Orange-White 2 Orange 3 Green-White 4 Blue 5 Blue-White 6 Green 7 Brown-WHite 8 Brown
FireWire Cable Information
| IEEE 1394 - Cable Ends | |||
 6 pin FireWire | |||
PIN# | SIGNAL | PIN# | SIGNAL |
| 1 | POWER | 4 | TPB+ |
| 2 | GND | 5 | TPA- |
| 3 | TPB- | 6 | TPA+ |
| |||
PIN# | SIGNAL | PIN# | SIGNAL |
| 1 | TPB- | 3 | TPA- |
| 2 | TPB+ | 4 | TPA+ |
Audio Connectors and Specs
MPC-2 AUDIO | |||||
 Audio Connector MPC-2 | |||||
PIN# |
SIGNAL |
COLOR |
PIN# |
SIGNAL |
COLOR |
| 1 | Audio + | Red | 3 | GND | Black |
| 2 | GND | Black | 4 | Audio - | White |
Data Tranfer link PinOut
Parallel Data Transfer Cable
Serial Data Transfer Null Modem Cable
Universal Serial Bus PinOut
USB Universal Serial Bus Cable
Pin# Label Function Standard Wire Color 1 +5 Volts Power Red 2 Data - Signal - White 3 Date + Signal + Green 4 Ground Ground Black
USB Universal Serial Bus Dual Port
Pin# Label Function 1 +5 Volts Power 2 Data - Signal - 3 Date + Signal + 4 Ground Ground 5 NC No Connection 6 +5 Volts Power 7 Data - Signal - 8 Date + Signal + 9 Ground Ground 10 NC No Connection
Keyboard & Mouse Interface Standards
PS/2 KEYBOARD OR MOUSE | |||
 6 pin miniDIN Male | |||
PIN# |
SIGNAL |
PIN# |
SIGNAL |
| 1 | DATA | 4 | +5 |
| 2 | NC | 5 | CLOCK |
| 3 | GND | 6 | NC |
PC/AT KEYBOARD | |||
 5 pin DIN Male | |||
PIN# | SIGNAL | PIN# | SIGNAL |
| 1 | CLOCK | 4 | GND |
| 2 | DATA | 5 | +5 |
| 3 | NC | ||
SUN KEYBOARD AND MOUSE | |||
 8 pin miniDIN Male | |||
PIN# | SIGNAL | PIN# | SIGNAL |
| 1 | GND | 5 | KYBD RCV |
| 2 | GND | 6 | KYBD XMT |
| 3 | +5 | 7 | PWRN |
| 4 | MOUSE | 8 | +5 |