Wegener Communications 4422 - Manual (Page 12)

Page 12
UTY4422-002 Page 12 of 72
1.4.2 Reduced Air Flow
Installation of the equipment in a rack should be such that the amount of airflow required for safe
operation of the equipment is not compromised.
1.4.3 Mechanical Loading
Mounting of equipment in a rack should be such that a hazardous condition is not achieved due
to uneven loading.
1.4.4 Circuit Overloading
Consideration should be given to the connection of the equipment to the supply circuit and the
effect that overloading of circuits could have on overcurrent protection and supply wiring.
Appropriate consideration of equipment nameplate ratings should be used when addressing this
concern.
1.4.5 Reliable Earthing
Reliable earthing of rack-mounted equipment should be maintained. Particular attention should
be given to supply connections other than direct connection to the Branch (use of power strips).
1.5 PHYSICAL ENVIRONMENT
See specific statements in Section 1.4 (Page 11).
Mount the UNITY4422 unit in a standard EIA 19-inch equipment rack located in a clean, dry
environment, and do not place unsupported equipment on the unit. Make sure that total rack
power consumption does not exceed the limits of the AC branch circuit, and that a reliable earth
safety ground is maintained. The unit will meet the full 10-40
o C operating temperature
specification only if adequate clearance around vent-holes is provided. The units may be
arranged without empty space between them, as long as enough rack ventilation is provided to
prevent severe heat buildup. Please note the maximum per-unit power dissipation of 45 watts.
1.6 SECURITY LABELS
The UNITY4422 uses security labels over some of the screws. There are no user-serviceable
components within the unit, and tampering with the security labels or opening the units will void
your warranty. If you have questions, contact Wegener's customer service department at the
address, phone, or fax numbers listed in Section
1.8 (Page 13).
* * * WARNING * * *
When connecting cables to “F” type connectors apply a force of no more than 12 inch
lb. (Finger tight). Avoid connecting adapters directly to “F” type connectors. Use at
minimum a 1-foot flexible extension cable between “F” type connectors and adapters.