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Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation Guide
Chapter 3 Installing
Installing the Chassis Ground Connection
Figure 3-34 Attaching a Grounding Lug to the Rear of the Cisco ASR-920-24SZ-M,
ASR-920-24TZ-M Router
To ensure that the chassis ground connection that you provide is adequate, you need the following parts
and tools:
• Ratcheting torque screwdriver with Phillips head that exerts up to 15 in.-lb (1.69 N-m) of torque for
attaching the ground wire to the router
• Crimping tool as specified by the ground lug manufacturer
• 6-AWG or larger copper wire for the ground wire
• Wire-stripping tools appropriate to the wire you are using
Caution Before making connections to the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M,
ASR-920-24TZ-M Router, ensure that you disconnect the power at the circuit breaker.
Otherwise, severe injury to you or damage to the router may occur.
Warning
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection
authority or an electrician if you are uncertain that suitable grounding is available.
Statement 1024
Warning
Use copper conductors only.
Statement 1025
Warning
When installing or replacing the unit, the ground connection must always be made first and
disconnected last.
Statement 1046
This unit is to be installed in a restrictive access location and must be permanently grounded to a
minimum 6-AWG copper ground wire.
Perform the following procedure to ground the Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M,
ASR-920-24TZ-M Router using a 2-hole lug and the corresponding mounting point. Most carriers
require a minimum 6-AWG ground connection. Verify your carrier’s requirements for the ground
connection.
Step 1 If your ground wire is insulated, use a wire-stripping tool to strip the ground wire to 0.5 inch ± 0.02 inch
(12.7 mm ±0.5 mm) (Figure 3-35).
1 Grounding lugs 2 Fan status LED
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