Cisco Systems UBR7225VXR specifications Protective Grounding, Connecting Power

Chapter 3 Installing the Cisco uBR7225VXR Router

Protective Grounding

Table 3-3	Auxiliary Port Signals
Pin	Signal	Direction	Description
8	CD	<—	Carrier Detect (used for modem control)
20	DTR	—>	Data Terminal Ready (used for modem control only)

Protective Grounding

The building installation should provide a means for connection to the protective earth grounding. The equipment should be connected to that means.

Note The uBR7225VXR is intended for installation in a Common Bonding Network (CBN).

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 Figure 3-13to identify the ground lug location.

Figure 3-13 Cisco uBR7225VXR Ground Lug Location

uBR7225-VXR

uBR7225-VXR

1

270534

1

Ground lug location

Connecting Power

Following are the procedures for connecting AC-input power to your Cisco uBR7225VXR universal broadband router.

Warning High leakage current - earth connection essential before connecting to system power supply. Statement 342

Warning Care must be given to connecting units to the supply circuit so that wiring is not overloaded. Statement 1018

Warning Read the installation instructions before you connect the system to its power source. Statement 1004

	Cisco uBR7225VXR Universal Broadband Router Hardware Installation Guide
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