Mounting Configurations - Paradyne 8820 Installation Manual

Mounting Configurations

The 8820 BAC comes equipped with mounting brackets to support installation in
19-inch (48.3 cm) Electronic Industries Association (EIA)-type or 23-inch (58.4 cm)
NEBS-type racks. Installation of the 8820 chassis in a European
Telecommunication Standards Institute (ETSI)-type rack requires a different set of
custom mounting brackets.
The following figure depicts an example of a chassis mounting configuration with
three chassis in a rack.
8820-A2-GN20-80
CAUTION:
Although three BACs will fit into one rack, be sure that after all circuit
cards are installed, the final configuration does not exceed NEBS heat
release requirements. The NEBS requirement for a rack of this size is
181.2 watts per square foot. When using a standard transmission bay (12
inch-deep frame), the footprint is 7 square feet. This equals 1268 watts
maximum per frame or rack when used in a NEBS location.
NOTE:
In this guide, the term rack refers to a CO rack, cabinet, frame, or bay.
November 2004
2. Installation
2-5