Data modules and asynchronous data units
555-233-116
72 Issue 4 October 2002
10. If you enabled AT commands, the AT > ON? prompt appears. Press the
ENTER/YES button.
11. If you enabled AT commands, the CONTINUE? prompt appears. Press the
ENTER/YES button.
Configuring the RS-232 interface on 7400A DTE
You can set each pin of the RS-232 cable to meet the needs of specific
applications, though in most cases, the defaults should wor k. For a list of pins and
leads, see Table 11 on page 73.
The Data Signal-Rate Select EIA leadsCI, CI2, CH, and CH2of the RS-232
cable indicate the receive/transmit speeds that the dat a module can use. To set
the EIA signal-rate leads, proceed as follows:
1. From the HOME display, press NEXT/NO until SET OPTIONS? appears.
Then press the ENTER/YES button.
2. When the SET 300 SPEED? prompt appears, press NEXT/NO until SET
CI LEAD? appears. Then, using the table and instructions below a s a
guide, start setting the leads.
AT > ON? DATA NEXT/NO BACK ENTER/YES
Push the button indicated by the arrow ()
CONTINUE? DATA NEXT/NO BACK ENTER/YES
●❍
Push the button indicated by the arrow ()
SET OPTIONS? DATA NEXT/NO BACK ENTER/YES
●❍❍➜
Push the button indicated by the arrow ()
SET CI LEAD? DATA NEXT/NO BACK ENTER/YES
●❍❍➜
Push the button indicated by the arrow ()