
March 10th 1997 Mirror Sites ![]() Download the Software Network Card Drivers ![]() Features User's Guide Help ![]() Search Distribution Rights Listserv Shareware Links ![]() Order the Software Help Us Promote NetSoft LAN Dealer Enquires Welcome Home Page | http://www.netsoft.ie/ CHAPTER 19 Cable SpecificationsParallel Cable SpecificationsThis section explains the pin-out connections for the parallel cable. This cable is required if you wish to connect a machine to the network using the parallel port. Parallel port network cables must have the following pins connected:
Pin Name Pin Parallel Pin Pin Name
Cable
Data Bit 0 2 15 Error
Data Bit 1 3 13 Select
Data Bit 2 4 12 Out of
Paper
Data Bit 3 5 10 Acknowledge
Data Bit 4 6 11 Busy
Busy 11 6 Data Bit 4
Acknowledge 10 5 Data Bit 3
Out of 12 4 Data Bit 2
Paper
Select 13 3 Data Bit 1
Error 15 2 Data Bit 0
Ground 18 One wire 18 Ground
Ground 19 may be 19 Ground
Ground 20 used to 20 Ground
Ground 21 connect 21 Ground
Ground 22 all eight 22 Ground
Ground 23 ground 23 Ground
Ground 24 signals 24 Ground
Ground 25 25 Ground
NOTES Only 11 wires are used (including ground wire). Both cable ends are 25-way D-type connectors, and must be of male gender. The length of the cable may be as long as 10 metres. Pins 1, 7, 8, 9, 14, 16 and 17 are not connected. Pins 18 through 25 are connected to each other at each end internally. In addition, the ground wire is connected to the actual 25-way D-Type connector. Serial Cable SpecificationsThis section explains the pin-out connections for the serial cables. These cables are required if you wish to connect machines using the serial ports.There are three types of serial cable as follows:
25-Pin PC-to-PC 25-Pin
Pin Name Pin Serial Cable Pin Pin Name
Receive 2 3 Transmit
Transmit 3 2 Receive
Ground 7 7 Ground
25-Pin PC-to-AT 9-Pin
Pin Name Pin Serial Cable Pin Pin Name
Transmit 2 2 Receive
Receive 3 3 Transmit
Ground 7 5 Ground
9-Pin AT-to-AT 9-Pin
Pin Name Pin Serial Cable Pin Pin Name
Transmit 2 3 Receive
Receive 3 2 Transmit
Ground 5 5 Ground
NOTES Only 3 wires are used (including ground wire). Cable ends are 25-way and 9-way D-type connectors,and must be of female gender. The length of the cable may be as long as 30 metres. Pins Transmit and Receive are always crossed. Standard null modem design. [Table of Contents] [Home Page] | |