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Protective Grounding
Table 3-3
Pin
8
20
Protective Grounding
The building installation should provide a means for connection to the protective earth grounding. The
equipment should be connected to that means.
The uBR7225VXR is intended for installation in a Common Bonding Network (CBN).
Note
While installing the equipment, the service person should check whether the power source is adequately
grounded. If it is not, the service person should arrange for the installation of a protective grounding
conductor from the equipment to the protective grounding wire in the building. This conductor should
consist of a minimum #6 American Wire Gauge (AWG) stranded copper wire. See
identify the ground lug location.
Figure 3-13
1 Ground lug location
Connecting Power
Following are the procedures for connecting AC-input power to your Cisco uBR7225VXR universal
broadband router.
High leakage current - earth connection essential before connecting to system power supply.
Warning
Statement 342
Care must be given to connecting units to the supply circuit so that wiring is not overloaded. Statement
Warning
1018
Read the installation instructions before you connect the system to its power source. Statement 1004
Warning
Cisco uBR7225VXR Universal Broadband Router Hardware Installation Guide
3-16
Auxiliary Port Signals
Signal
Direction
CD
<—
DTR
—>
Cisco uBR7225VXR Ground Lug Location
Chapter 3
Installing the Cisco uBR7225VXR Router
Description
Carrier Detect (used for modem control)
Data Terminal Ready (used for modem control only)
uBR7225-VXR
uBR7225-VXR
Figure 3-13
to
1
OL-17309-01
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Troubleshooting
