Cable Connections
104 7705 SAR-A Chassis Installation Guide
Step 2. Route the cables to the left or the right of the chassis. If desired, loosely bundle the
cables together using a cable tie. Do not over-tighten the cable tie.
Step 3. Attach the other end of the fiber cable to the equipment.
Shield Ground Connections
To maintain EMC compliance, cables that are shielded and grounded at both ends must be
used with all the electrical interfaces on the router.
To meet surge protection requirements, the shield of any open-ended cable (at the far end)
must be grounded to a convenient chassis ground point, such as the equipment rack.
Hardware required:
• wire stripper
• hardware for making the connection (such as a screw, star washer, and cable ties)
To make a shield ground connection:
Step 1. Locate a convenient chassis ground point, such as the equipment rack.
Step 2. Carefully strip enough insulation (outer jacket) from the cable such that the exposed
grounding wire can reach the chassis ground point. Ensure that there is enough
stripped insulation to provide strain relief for the ground connection.
Step 3. Separate the ground shield (braid, foil, and drain wire) from the signal conductors.
Step 4. Securely attach the shield to the chassis ground point. Use a screw and star washer
large enough to make a proper ground connection. Use proper cable dressing and
strain relief techniques.
Note: Arrange the cables such that they do not impede the insertion or removal of other
equipment in the rack.
Caution: When stripping the cable insulation, avoid nicking the ground conductors or the
insulation on the signal conductor. Nicks can weaken or break a conductor or expose a wire
to a potential short circuit.
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