Access to Chassis
Allow space at the rear of the chassis for cable connections. Also consider the need to access the chassis for
future upgrades, maintenance, and troubleshooting.
Rack Requirements
Use the following information to plan your equipment-rack configuration:
•
Allow clearance around the rack for maintenance.
•
Enclosed racks must have adequate ventilation. Ensure that the rack is not congested, because each voice
gateway generates heat. An enclosed rack should have louvered sides and a fan to provide cooling air.
Heat generated by equipment near the bottom of the rack can be drawn upward into the intake ports of
the equipment above it.
•
When mounting a chassis in an open rack, ensure that the rack frame does not block the ports. If the
chassis is installed on slides, check the position of the chassis when it is seated in the rack.
Chassis Grounding
Chassis grounding is provided through the power cable, which uses a standard grounding plug. However, the
chassis also requires a reliable earth ground using the earth ground lug and hardware provided. For more
information, see
Installing the Ground Connection, on page 33
.
Power Source
You can connect Cisco VG310 or Cisco VG320 to either an AC power source or a +12V DC power supply.
The chassis provides inputs for both AC and DC power. Design your installation to use only one type of
power.
Do not use AC and DC power at the same time.
If you do, the unit stops operating, and you must
reboot it with only a single power source.
Caution
For more information, see
Connecting Power, on page 36
.
Cable Types
The cable types are dependent on the Cisco VG310 or Cisco VG320 analog voice gateway that you are using.
For more information, see
Interfaces and Service Capabilities of Cisco VG310 and Cisco VG320 , on page
3
and
Cable Specifications and Information, on page 69
.
Cisco VG310 and Cisco VG320 Voice Gateways Hardware Installation Guide
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Planning Your Installation
Access to Chassis
