ECI XDM-300, Installation And Maintenance Manual

Page: 135 / 266

XDM-300 Installation and
Maintenance Manual Equipment Installation
417006-2311-0H3-A00 ECI Telecom Ltd. Proprietary 3-77
XDM-300 Accessories
ECI Telecom offers accessories for efficient and optimal installation of
equipment in racks. This section describes the main types of accessories. If you
need custom modification to standard items, contact ECI Telecom’s Transport
Networking Division support team or your ECI Telecom sales representative.
xRAP-B
The xRAP-B is a power distribution and alarm panel for XDM shelves installed
in racks. The xRAP-B performs the following main functions:
|
Power distribution for one or two XDM-300 shelves . The nominal DC
power voltage is -48 VDC or -60 VDC. Since XDM-300 shelves can use
redundant power sources, the xRAP-B supports connection to two separate
DC power circuits. The internal circuits of the xRAP-B are powered
whenever at least one power source is connected. The presence of DC
power within the xRAP-B is indicated by a POWER ON indicator.
The xRAP-B has two 5-pin DC output connectors for supplying power to
any shelf in the XDM-1000 or XDM-100 family of products. The
maximum power that can be supplied to each XDM shelf is up to 2250 W,
in accordance with the shelf type and version.
Each DC power circuit of each shelf is protected by a circuit breaker that
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-300 shelves, and therefore their current rating is in
accordance with the order requirements.
The circuit breakers are installed during the xRAP-B installation. To
prevent accidental changing of a circuit breaker’s state, the circuit breakers
can be reached only after opening the front cover of the xRAP-B. The
circuit breaker state (ON or OFF) can be seen through translucent covers.
| Bay alarm indications . The xRAP-B includes four alarm indicators, one
for each alarm severity. When alarms of different severities are received
simultaneously, the corresponding alarm indications light simultaneously.
A buzzer is activated whenever a Major or Critical alarm is present in
XDM-300 shelves installed in the rack.
|
Connecting alarms from two XDM-300 shelves, each shelf with
maximum four alarm inputs and four alarm outputs (via dry contacts) to the
customer's central alarm monitoring system.