XDM-300 Installation and
Maintenance Manual
Equipment
Installation
417006-2311-0H3-A00 ECI
Telecom
Ltd.
Proprietary
3-23
3.
Insert the circuit breaker into the circuit breaker sockets located on the
xRAP-B source A power terminal board, as shown in the previous figure.
4.
If an additional shelf is powered from source A, repeat Steps 2 and 3 to
insert the other circuit breaker into the corresponding shelf position of the
power terminal board.
If an additional power source is used, repeat Steps 2, 3, and 4 for source B
circuit breakers.
Table
3-3: XDM-300 recommended circuit breakers
Shelf type
Maximum power
dissipation
Recommended CB
per shelf
XDM-300 basic shelf
1000 W/3415
BTU/hr
50A
XDM-300 with TPU
1200 W/4098
BTU/hr
50A
XDM-300 with two TPUs
1400 W/4781
BTU/hr
50A
XDM-300 with two TPUs
and one OCU
1500 W/5122
BTU/hr
50A
To check the DC voltage polarity:
1.
Connect the DC input power to the xRAP-B.
2.
Set all xRAP-B circuit breakers to ON.
3.
Use a digital multimeter (DMM) to test the voltage between the positive
and negative pins of each power cable.
C
AUTION
:
Pay attention not to short-circuit the multimeter
leads when checking the voltage.
N
OTE
:
The power cable terminates with a 5-pin (5W5)
connector, connected to the XDM-300 shelf. For a 5W5
connector, the positive pins are A4, A5 and the negative pins
A2, A3.
Summary of Contents for XDM-300
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