Connecting the Power Cables
4-14
SmartEdge 1200 Router Hardware Guide
Figure 4-12
Positioning the Removable Air Ramp
Connecting the Power Cables
The SmartEdge 1200 chassis has terminal studs for the primary and backup power sources for zone 1 and 2;
these terminal studs are located on four power filters that are mounted on the rear of the chassis. The power
cables are connected to separate connectors on the external fuse panel or circuit breaker panel. Two
redundant connectors for ground cables also exist on the rear of the chassis.
Figure 4-13 shows the location of the power and chassis ground connectors. A safety cover, secured to the
chassis by tabs and captive Phillips screws, prevents the cables from being deliberately disconnected and
the connectors from being accidentally touched.
The chassis requires AWG #4 wire for power and chassis ground cables, but AWG #6 might be acceptable;
follow the National Electrical Code (NEC) (in the United States) or local codes (outside the United States)
that apply. Compression lugs, washers, locking washers, and hex-head nuts are shipped with the chassis;
the compression lugs are intended for AWG #4 cables only.
Note
In Figure 4-13, the SmartEdge 1200 has isolated DC return (DC-I). The –48V return terminal
for each power source is not connected to either frame ground (primary or backup).
