XDM-300 Installation and
Maintenance Manual
Equipment
Installation
417006-2311-0H3-A00 ECI
Telecom
Ltd.
Proprietary
3-17
C
AUTION
:
If additional equipment other than XDM-300
shelves is used in the rack, a heat buffer must be installed
between any such additional equipment and the XDM-300
shelf to minimize the transfer of heat from shelf to shelf.
Consult your ECI Telecom representative regarding the exact
heat buffer required.
Installing the xRAP-B
Before connecting DC power cables, refer to DC Power Cables (on page
The installation of an xRAP-B unit includes the following steps:
1.
Prepare DC power cables.
2.
Install the xRAP-B in the prescribed location, either at the top of the rack or
on the extendable installation rails.
3.
Ground the xRAP-B to the rack grounding stud.
4.
Connect DC input power cables to the xRAP-B.
5.
Connect the DC power cables of the XDM-300 shelves to the xRAP-B.
6.
Install circuit breakers.
7.
Check DC voltage polarity.
8.
Connect the alarm cables.
For a description of the xRAP-B, refer to the XDM-300 Reference Manual.
The DC input power cables connect between the two DC power sources and the
xRAP-B source A and source B inputs. Two cables are required, one for each
source.
N
OTE
:
According to accepted industry standards for
connecting DC power, the positive lead (+48 V) should be
connected with a red cable, and the negative lead (-48 V) with
a black cable. However, according to the BS7671 (GB) and
HD 308 S2:2001 (EU) standards, the positive lead (+48 V)
should be connected with a blue cable, and the negative lead
(-48 V) with a gray cable. In the following sections that
describe DC power cable connections, use cables with
appropriate colors to comply with the standards in your area
of residence.
Summary of Contents for XDM-300
Page 1: ...XDM 300 Installation and Maintenance Manual Version 7 417006 2311 0H3 A00...
Page 2: ......
Page 8: ......
