Pin
1 ............................Shield ....................I/O........ Shield for cable
2 ............................TD.........................I............. Transmitted Data
3 ............................RD.........................O........... Received Data
4 ............................RTS........................I............. Request to Send
5 ............................CTS.......................O........... Clear To Send
6 ............................DSR .......................O........... Data Set Ready
7 ............................SG ........................I/O........ Signal Ground
8 ............................CD ........................O........... Carrier Detect
9 ............................NC .......................N/A ...... No Connection
10 ..........................NC .......................N/A ...... No Connection
11 ..........................NC .......................N/A ...... No Connection
12 ..........................NC .......................N/A ...... No Connection
13 ..........................NC .......................N/A ...... No Connection
14 ..........................NC .......................N/A ...... No Connection
..............................15 ........................TC ......... O
16 ..........................NC .......................N/A ...... No Connection
17 ..........................RC ........................O........... Receive Clock
18 ..........................NC .......................N/A ...... No Connection
19 ..........................NC .......................N/A ...... No Connection
20 ..........................DTR .......................I............. Data Terminal Ready
21 ..........................NC .......................N/A ...... No Connection
22 ..........................RI ..........................O........... Ring Indicator
23 ..........................NC .......................N/A ...... No Connection
24 ..........................ETC .......................I............. External Transmit Clock
25 ..........................NC .......................N/A ...... No Connection
I = Input .............. O = Output........N/A = Not Applicable
61200051L1-1D
PIN 13
PIN 25
Name
ISU 2x64 Dual Port ISDN Service Unit User Manual
Appendix E
Connector Pinouts
PIN 1
FEMALE
PIN 14
EIA-232 Interface
EIA-232 Interface
I/O
Description
Transmit Clock
Figure E-1
Table E-A
119