Wiring; Power-Up And Initialization; Figure 2-1. Installing The Async-232 Module; Table 2-1. Db25 Connection Pinout - ADTRAN Async-232 User Manual

Chapter 2. Installation

WIRING

Each Async-232 Module port provides a single DB25 DCE connector. The connec-
tor pinout is given in Table 2-1.
.

POWER-UP AND INITIALIZATION

When the Async-232 Module is inserted into the ATLAS chassis, the front panel
STATUS indicator blinks red, yellow, and green for a time. Previously configured
settings for the Async-232 Module are automatically restored upon power-up.
When the Async-232 Module is ready for operation, the STATUS indicator
remains solid green. At this time a system self-test can be invoked, as described
in ATLAS User Manual.
2-2

Figure 2-1. Installing the Async-232 Module

Table 2-1. DB25 Connection Pinout

Pin Name
1 Shield
2 TXD
3 RXD
4 RTS
5 CTS
6 DSR
7 GND
8 DCD
9, 10, 11, 12, 13, Unused
14, 15, 16, 17, 18,
19, 21, 23, 24, 25
20 DTR
22 RI
Async-232 Module User Manual
Description
Shielded ground connection
Transmit data from DTE
Receive data to DTE
Request to send from DTE
Clear to send to DTE
Data set ready to DTE
Ground
Data carrier detect to DTE
n/a
Data terminal ready from DTE
Ring indicator to DTE
Wiring
61200182L1-1