Cisco Cisco VN 2900 Network Adaptation Interface Installation Guide

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      Connecting Voice Interface Cards to the Network
Pinout and Cabling Specifications
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Warning
To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cord.
Warning
Hazardous network voltages are present in WAN ports regardless of whether power to the unit is OFF 
or ON. To avoid electric shock, use caution when working near WAN ports. When detaching cables, 
detach the end away from the unit first.
Cisco 1700 Series Routers
Grounding on a Cisco 1700 series router is done on the router chassis itself, not on the voice interface 
cards. For information on chassis grounding on Cisco 1700 series routers, see the hardware installation 
guide for your router.
Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
The requirements in this section apply to only the Cisco 2600 series, Cisco 3600 series, and Cisco 3700 
series routers. 
The cards in this chapter are suitable for exposed plant lead connection. However, the host router chassis 
must have a permanent protective earth connection before you connect a voice interface card to an 
exposed plant lead. Make sure that a permanent earth connection is in place before installing the card. 
If you find that a router chassis does not have an earth connection and you do not have a grounding kit, 
take one of the following actions: 
Order and install a NEBS Level 3/ETSI Compliance Kit. 
Install an equivalent permanent protective earth connection, using the method described in the 
installation guide 
Cisco ICS 7750
The Cisco ICS 7750 chassis has a grounding lug that needs to be properly connected using a green and 
yellow 14 American Wire Gauge (AWG) grounding wire. See the “Installing the Cisco ICS 7750” 
chapter in the
 
Cisco ICS 7750 Installation and Configuration Guide for your software release at:
Pinout and Cabling Specifications
Note
See 
 for network-end connectors and pinouts of the cables 
connecting voice cards. Look under the type of interface card.