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Cisco PIX Security Appliance Hardware Installation Guide
78-15170-03
Chapter 5 PIX 520
Installing the PIX 520 DC Model
Step 4
As shown in
, the PIX 520 is equipped with two grounding studs at the back of the unit,
which you can use to connect a two-hole grounding lug to the PIX 520. Use the 10-32 nuts provided with
the PIX 520 to connect a copper standard barrel grounding lug to the studs. The PIX 520 requires a lug
where the distance between the center of each hole is 0.56 inches. A lug is not supplied with the PIX 520.
Figure 5-24 Attaching a Grounding Lug to the PIX Security Appliance
Step 5
Ensure that power is removed from the DC circuit. To ensure that all power is OFF, locate the circuit
breaker on the panel board that services the DC circuit, switch the circuit breaker to the OFF position,
and tape the switch handle of the circuit breaker in the OFF position.
Step 6
Strip the ends of the wires for insertion into the power connect lugs on the PIX 520.
Step 7
Insert the ground wire into the connector for the earth ground and tighten the screw on the connector (see
). Using the same method as for the ground wire, connect the negative wire and then the
positive wire.
Figure 5-25 Attaching DC Power Cables
11827
Grounding studs
on PIX DC model
2-hole copper
standard barrel
grounding lug
To rack
ground
10-32 nuts
Rear of
PIX security appliance
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