Reserve Batteries; Cooling Units; Environment; Grounding - Northern Telecom QCA146 Installation And Testing Instructions

2 - 4 D e s c r i p t i o n

Reserve batteries

Cooling units

Environment

Grounding

2-Mb/s Remote Periperal Equipment
Power cords are connected to the rear of the -48 V rectifier in the
cabinet.
One or two QBL24 battery units containing rechargeable dry cells can
be connected to the cabinet when service is required during commercial
power failures.
The cabinet can also be connected to lead acid batteries through a
QBL15 battery distribution box and a QCAD321 junction box assembly.
QUD24 Cooling Units located in the cabinet top assembly are required
in cabinet equipped with three tiers.
The QCA146 should be installed in an environment suitable for
Meridian SL-1. The location should be clean, dry and protected from
extreme heat or cold. The operating environment described in 553-
YYY1-200 for the location of the main Meridian SL-1 should be used as
a guide when installing the QCA146 RPE cabinet.
The QCA146 RPE cabinet must be connected to a suitable building
ground to ensure proper operation of the RPE equipment. Refer to 553-
YYY1-200 for a description of suitable building grounds.
Appendix 1 to 553-2741-200