In order to prevent excessive side to side movement of the unit it is advised to install DIN rail stop plates such
as Mouser part Numbers 653-PFP-M, 651-1201662 or 845-CA402. These stop plates can be installed on one
or both sides of the unit to limit excessive side to side movement that typically occurs in high vibration
environments.
Note
Installing the Router Ground Connection
The router must be connected to a reliable earth ground. Install the ground wire in accordance with local
electrical safety standards. There are separate grounding points on the Base IR1101 and the Expansion Module.
• For NEC-compliant grounding, use size 16awg (1.5mm2) or larger copper wire and a ring terminal with
an inner diameter of 1/4 in. (6 to 7mm).
• For EN/IEC 60950-compliant grounding, use size 18 AWG (1 mm2) or larger copper wire.
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
CAUTION:
Cable distribution system should be grounded (earthed) in accordance with ANSI/NFPA 70, the
National Electrical Code (NEC), in particular Section 820.93, Grounding of Outer Conductive Shield of a
Coaxial Cable.
To install the ground connection, follow these steps:
Step 1
Locate the grounding lug (
1
) attached to the side of the Cisco IR1101. It will be attached underneath two screws. Remove
the screws holding it to the router and set it aside for reuse.
Step 2
Strip one end of the ground wire to the length required for the terminal.
Step 3
Crimp the ground wire to the grounding lug using the wire crimper.
Step 4
Attach the grounding lug (
1
) to the chassis using the screws set aside in step 1. Tighten the screw to a torque of 8 to 10
inch-pound (0.9 to 1.1 newton meter). (See
Figure 19: Chassis Ground Connection Points, on page 37
.)
IR1101 Industrial Integrated Services Router Hardware Installation Guide
36
Installing the Router
Installing the Router Ground Connection
