Table B-4. Chain-Out Pinout - ADTRAN TDU 120e User Manual

Control-Out/Chain-Out
Pin
1
2
3
4
5
6,7,8 UNUSED
61202156L2-1
This is used to connect to another TDU/TSU family mul-
tiplexer chain-in connector. See Table B-4 for the pinout
for the chain-out connector.
Name
GND Ground - connected to unit chassis.
UNUSED
TX DATA Data transmitted to chained units by the
TDU 120e. Connect to RX DATA of the next
unit (chain-in pin 3).
UNUSED
RX DATA Data received from chained units by the
TDU 120e. Connect to TX DATA of the next
unit (chain-in pin 5).
TDU 120e User Manual
Appendix B. Connector Pinouts

Table B-4. Chain-Out Pinout

Description
B-3