DC-Input Power Connections
96 7705 SAR-M Chassis Installation Guide
DC-Input Power Connections
Wiring the DC Inputs
The 7705 SAR-M has a standard dual-feed terminal block attached to the front of the chassis.
The terminals are the DC power feed points for source voltage from the DC circuit.
For redundant power configurations, you must use both DC power feeds (one for each pair of
power terminals).
To connect power cables to the terminal block, attach (crimp) a ring lug to each power cable
at the router end, as shown in Figure 22.
Figure 22: Attaching a Ring Lug to a Power Cable
Danger:
• Ensure that all power is OFF from the DC circuit. Locate the circuit breaker on the panel
board that services the DC circuit and switch the circuit breaker to the OFF position. For
extra safety, you can tape the handle of the circuit breaker in the OFF position.
• When wiring the unit, the chassis ground connection must always be made first and
disconnected last.
Table 17: Ring Lug to Power Cable Descriptions
Key Description
1 Copper wire (see Required tools and hardware)
2 Insulation stripped according to local safety code
3 Ring lug suitable for No. 6 screw
3
2
1
19641
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