DC Power Connections
7705 SAR-A Chassis Installation Guide 79
Figure 18 shows the terminal connections for -48 VDC installations. Table 18 identifies the
key items in the figure.
Figure 18: Wiring the -48 VDC Power Supplies
2 0.35 in. (9 mm) of outer shielding removed
Table 17: DC Power Cable Descriptions (Continued)
Key Description
23326
Mgmt
ToD Out
Lnk Act
Sync
In
+Batt A
-Batt A
+Batt B
-Batt B
Console
-48 VDC
1 2
6 7
3
4
+
_
5
3
+
_
+Batt A
-Batt A
+Batt B
-Batt B
8
9
Table 18: Wiring the DC Power Supplies Descriptions
Key Description
1 7705 SAR-A chassis
2 Wire-to-board, pluggable terminal block
3 Disconnect device (minimum 5 A and maximum 10 A circuit breaker or fuse)
4DC source A
5DC source B