home *** CD-ROM | disk | FTP | other *** search
/ Night Owl 6 / Night Owl's Shareware - PDSI-006 - Night Owl Corp (1990).iso / 012a / loopback.zip / LOOPBACK.TXT
Text File  |  1990-12-21  |  2KB  |  39 lines
  1. This document will explain the pinouts used for the IBM wrap
  2. plugs used for diagnostic purposes on a IBM PC or XT
  3. computer.
  4.  
  5. There are two wraps plugs.  One will plug into the parallel
  6. port, the other will plug into the serial port.
  7.  
  8.              ┌──────────────────────────────────┐
  9.              │       Parallel Connector         │
  10.              │  DB-25 Female With Male Pins     │
  11.              │                                  │
  12.              │                                  │
  13.              │            Connect               │
  14.              │                                  │
  15.              │          PIN  1 TO 13            │
  16.              │          PIN  2 TO 15            │
  17.              │          PIN 12 TO 14            │
  18.              │          PIN 16 TO 10            │
  19.              │          PIN 17 TO 11            │
  20.              │                                  │
  21.              │                                  │
  22.              └──────────────────────────────────┘
  23.  
  24.  
  25.  
  26.              ┌──────────────────────────────────┐
  27.              │        Serial Connector          │
  28.              │  DB-25 Male With Female Pins     │
  29.              │                                  │
  30.              │                                  │
  31.              │            Connect               │
  32.              │                                  │
  33.              │          PIN  2 TO  3            │
  34.              │          PIN  4 TO  5            │
  35.              │          PIN  6 TO 20            │
  36.              │          PIN  6 TO  8            │
  37.              │                                  │
  38.              │                                  │
  39.              └──────────────────────────────────┘