
HU-TX500-TECH
221
TX500 series technical manual
Figure 4: Graphical view of twin PSU sockets
PSU Alarm Socket
The PSU Alarm is a 9-way D type Socket.
The pinning details are shown in the table below: -
Pin
PSU alarm
1
GND
2
PSU 1 RELAY COM
3
PSU 1 RELAY S/C FAIL
4
PSU 1 RELAY O/C FAIL
5
PSU 2 RELAY COM
6
PSU RELAY S/C FAIL
7
PSU RELAY O/C FAIL
8
N/C
9
N/C
Table 1: Pin-out details for PSU Alarm Socket
Safety Earth
point