Grounding The Switch - Cisco Catalyst 9300 Series Hardware Installation Manual

Installing a Power Supply
• Four fork-type terminals from the DC power supply accessory kit. The terminals must be the proper size
• M5 screws for 12 AWG wire connection for NEBS installations.

Grounding the Switch

Follow these steps to install either a single-hole ground lug or a dual-hole ground lug on the switch. Make
sure to follow any grounding requirements at your site.
Before you begin
Follow the grounding procedures at your site and observe these warnings:
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
When installing or replacing the unit, the ground connection must always be made first and disconnected last.
Statement 1046
Caution Follow the grounding procedure instructions, and use a UL-listed lug (included in the accessory kit).
Caution To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety, connect
the (Management Ethernet) ports only to intra-building or unexposed wiring or cable. The intrabuilding cable
must be shielded and the shield must be grounded at both ends. The intra-building port(s) of the equipment
or subassembly must not be metallically connected to interfaces that connect to the OSP or its wiring. These
interfaces are designed for use as intra-building interfaces only (Type 2 or Type 4 ports as described in
GR-1089-CORE) and require isolation from the exposed OSP cabling. The addition of Primary Protectors is
not sufficient protection in order to connect these interfaces metallically to OSP wiring.
Procedure
Step 1 Use the ground lug screw and the lug ring for single-ground connections. Use the dual-hole lug for ground
connections for NEBS installation.
Step 2 Strip the 12-gauge or 8-gauge ground wire to 0.5 inch (12.7 mm) ± 0.02 inch (0.5 mm). Stripping more than
the recommended amount of wire can leave exposed wire from the connector. Use 12-gauge copper ground
wire for the single-ground connection. Use 8-gauge copper ground wire for the dual-ground connection.
for M3 screws in a Dinkle DT-35-B25-style terminal block.
Cisco Catalyst 9300 Series Switches Hardware Installation Guide
Grounding the Switch
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