
June 2011 3 – 13
3 Connector Designations and Layouts
3.1 Connector Designations and Layouts of TNC 125, 131, 135, 145, 150, 151/155
RS-232-C/V.24 data interface, 14-pin, Amphenol
Flange socket with female insert
Pin no. Assignment Designation
1 GND Chassis ground
2 Not assigned
3 Not assigned
4 Not assigned
5 RTS Request to Send
6 DSR Data Set Ready
7 Not assigned
8 Not assigned
9 Not assigned
10 Not assigned
11 DTR Data Terminal Ready
12 TxD Transmit Data
13 CTS Clear to Send
14 RXD Receive Data
Chassis Ext. shield
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