Interface connector, Table 2 pin assignment of the interface connector, Trusted – Rockwell Automation T823X Trusted Power System User Manual
Page 12: Power system t823x
Trusted
TM
Power System T823X
Issue 9 Dec 08
PD-T823X
12
3.4. Interface Connector
The Power Shelf has an optional DSB, 25-pin, female interface connector on the back. The Power
System can be monitored and controlled through this interface, by a Power Controller, using a Power
Shelf Interconnect. AC and DC fail alarms are available from a separate connector on the Power Port.
Pin
Number
Signal Name Description
1
DC Fail_2
DC Fail signal of the second Power Pack
2
A2
I
2
C address bit 2
3
A3
I
2
C address bit 3
4
ON SYNC
Not Used
5
SDA
I
2
C Serial data bus
6
SCL
I
2
C Clock
7
NC
No connection
8
On/Off_1
Remote on off control for the first Power Pack - Not Used
9
OTP_1
Fan Fail or Over Temperature signal for the first Power Pack
10
On/Off_2
Remote on off control for the second Power Pack - Not Used
11
V
aux
Not Used
12
DC Fail_1
DC Fail signal of the first Power Pack
13
AC Fail_3
AC Fail signal of the third Power Pack
14
OTP_3
Fan Fail or Over Temperature signal of the third Power Pack
15
DC Fail_3
DC Fail signal of the third Power Pack
16
INT BUS
Not used
17
AC Fail_1
AC Fail signal of the first Power Pack
18
On/Off_3
Remote on off control for third Power Pack - Not Used
19
SRTN
Signal return and V
aux
return
20
RS-
Remote sense for V-
21
OTP_2
Fan Fail or Over Temperature signal of the second Power Pack
22
RS+
Remote sense for V+
23
AC Fail_2
AC Fail signal of the second Power Pack
24
CS
A single wire interface for current sharing
25
V-
V-
Table 2 Pin Assignment of the Interface Connector
Refer to Figure 4 - 1U Power Shelf Mechanical Outline for the locations of Power Pack 1, 2 and 3.