User manual

Appendix B. Connector Pinouts
B-6 TDU 120e User Manual 61202156L1-1
10BaseT
10BaseT is used to connect the TDU 120e to the local area
network.
Connector Type (USOC): Shielded 8-pin, modular
Alarm
This is used to connect the TDU 120e to an external alarm
device.
Connector Type: 4-pin, Eurostyle connector
Table B-9. 10BaseT Ethernet Connector
Pin Name (To Nic)
1
TX1
2
TX2
3
RX1
6
RX2
Table B-10. External Alarm Device Connector
Pin Name Description
1
NC Normally closed
2
NO Normally open
3
COM Common
4
GND Connected to unit chassis
Table B-11. Power Connector (for DC powered units)
Pin Name Description
1
+ +24 or +48 VDC
2
_ -24 or -48 VDC