Instruction manual

ATLAS 800 Series System Manual Option Module Pinouts

Engineering Guidelines

Async-232 Option Module

Using the provided adapter cables, each Async-232 Option Module (P/N 1200182L1) interface provides a

DB-25 (see Pinout 23).

T3 Option Module

Using the provided RG 59, 75-Ohm cables (P/N 3125I054), each T3 Option Module (P/N 1200223L1)

provides BNC connectors for transmit and receive connections (see Pinout 24).

Pinout 23. Async-232 Option Module (DB-25)

Pin Name Description

1 Shield Shielded ground connection

2 TXD Transmit data from DTE

3 RXD Receive data to DTE

4 RTS Request to send from DTE

5 CTS Clear to send to DTE

6 DSR Data set ready to DTE

7 GND Ground

8 DCD Data carrier detect to DTE

9—19, 21, 23—25 Unused n/a

20 DTR Data terminal ready from DTE

22 RI Ring indicator to DTE

Pinout 24. T3 Module (BNC pair, female)

Name Description

RX IN Receive data from the network, 75 ohms ± 5%, unbalanced

TX OUT Transmit data to the network, 75 ohms ± 5%, unbalanced