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User’s Guide
Interface Specifications B-11
RS-232 Serial Interface Connector Pin Assignment
PIN SIGNAL NAME SIGNAL
DIRECTION
1
Frame Ground
2 Transmitted Data Out
3 Received Data In
*4 Request to send Out
*5 Clear to Send In
*6 Data Set Ready In
7 Signal Ground
*8 Data Carrier Detects In
9 No Connect
10 No Connect
11 Data Terminal Ready Out
12 No Connect
13 No Connect
14 Reserved
15 Reserved
16 Reserved
17 Reserved
18 Reserved
19 Reserved
20 Data Terminal Ready Out
21 No Connect
22 No Connect
23 No Connect
24 No Connect
25 No Connect
* These signals are available only when the Modem Control feature is enabled.