Pre-Installation Guidelines
The Acme Packet 3900 must have access to reliable power and cooling. When
choosing a location for your Acme Packet 3900, follow the guidelines listed in this
section.
Environmental Guidelines
When preparing to install your Acme Packet 3900:
•
Ensure that the equipment rack location complies with the environmental
specifications (e.g., temperature, relative humidity, and maximum altitude) of the
Acme Packet 3900 described in the chapter on Specifications.
•
Locate the Acme Packet 3900 in a clean and well-ventilated room. This location
should also be far from areas where heat, electrical noise, and electromagnetic
fields are present.
Power Guidelines
When preparing to install your Acme Packet 3900, please ensure you do the following:
•
Ensure that the installation location has access to adequate power and grounding.
Separate circuits should be available for each of the Acme Packet 3900 two power
supplies.
•
The Acme Packet 3900 may only be powered by AC or DC circuits at one time;
mixed power configurations are unsupported.
•
Never use extension cords when powering a Acme Packet 3900.
•
Use grounded, 3-conductor circuits.
•
A local earth ground must be available.
Note:
Connect each of the Acme Packet 3900 power supplies to a separate circuit.
If both supplies are connected to outlets on the same circuit, the Acme
Packet 3900 will lose power to both supplies if that circuit loses power. In that
case, the whole Acme Packet 3900 would lose power.
Mounting Guidelines
When preparing to install your Acme Packet 3900, please ensure you follow these
mounting guidelines:
•
Leave enough clearance, approximately 8” (20 cm), behind the equipment rack
to allow adequate air ventilation, for ease in cabling, and to access the console
connector.
•
Do not block the air inlets or the fan module, or obstruct airflow to the system in
any way.
Chapter 3
Pre-Installation Guidelines
3-2