Equipment Installation
XDM-300 Installation and
Maintenance Manual
3-80 ECI
Telecom
Ltd.
Proprietary
417006-2311-0H3-A00
Table
3-6: xRAP-B connector functions
No. Designation Function
1, 2
Shelves DC input
power
Two 5-pin D-type connectors designated Shelf 1
and Shelf 2 for connecting DC power to XDM-300
shelves
3 ALARMS 68-pin SCSI connector for connecting external
alarm inputs, external alarm outputs, and severity
alarms to the customer alarm monitoring system
4, 5
SHELF alarms
Two 36-pin SCSI connectors designated SHELF 1
and SHELF 2 for connecting alarm input
and
output lines to XDM-300 shelves installed in the
rack
xRAP-100
The xRAP-100 is a power distribution and alarm panel for XDM shelves
installed in racks. The xRAP-100 performs the following main functions:
|
Power distribution
for up to four XDM-100 shelves or three XDM-100
and one XDM-1000 shelves. The nominal DC power voltage is -48 VDC
or -60 VDC. Since XDM shelves can use redundant power sources, the
xRAP-100 supports connection to two separate DC power circuits. The
internal circuits of the xRAP-100 are powered whenever at least one power
source is connected. The presence of DC power within the xRAP-100 is
indicated by a POWER ON indicator.
The xRAP-100 has a 3-pin DC output connector, for supplying power to
the XDM-300 shelf.
Each DC power circuit of each shelf is protected by a circuit breaker, which
also serves as a power on/off switch for the corresponding circuit. The
required circuit breakers are included in the installation parts kit supplied
with the XDM shelves, and therefore their current ratings are in accordance
with the order requirements. The circuit breakers are installed during the
xRAP-100 installation. To prevent accidental changing of a circuit breaker
state, the circuit breakers can be reached only after opening the front cover
of the xRAP-100. The circuit breaker state (ON or OFF) can be seen
through translucent covers.
3
Alarm input lines arrive through the ALARMS connector and are connected to the corresponding SHELF
connector.
Summary of Contents for XDM-300
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