Installation guide

Cabling Specifications A-5

Serial Cables

All interface types except EIA-530 are available in DTE or DCE format: DTE with a plug

connector at the network end and DCE with a receptacle at the network end. V.35 is

available in either mode with either gender at the network end. EIA-530 is available in DTE

only.

The tables that follow list the signal pinouts for both the DTE-mode and DCE-mode serial

port adapter cables for each serial interface type.

Note All four-port serial network processor modules use a universal high-density, 60-pin

receptacle; all of the older dual serial network processor modules use a 50-pin receptacle.

Each universal port requires a serial port adapter cable that determines the port’s electrical

interface type and mode: DTE or DCE. Although all port adapter cables use a universal

plug at the quad serial module end, the network end of each cable type uses the physical

connectors commonly used for the interface. (For example, the network end of the

EIA/TIA-232 port adapter cable is a DB-25 connector, the most widely used EIA/TIA-232

connector.) The dual serial and four-port serial module pinouts are listed separately.

EIA/TIA-232 Dual Serial Module Cable Assembly

Figure A-1 shows the dual serial module EIA/TIA-232 cable assembly. Table A-4 lists the

DTE and DCE pinouts.