ECI XDM-300, Installation And Maintenance Manual

Page: 89 / 266

XDM-300 Installation and
Maintenance Manual Equipment Installation
417006-2311-0H3-A00 ECI Telecom Ltd. Proprietary 3-31
Table 3-4: 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-100.
2. Set all xRAP-100 circuit breakers to ON.
3. Use a digital multimeter (DMM) to test the voltage between the positive
(pin A3) and negative (pin A2) pins of each power cable.
4. Make sure the voltage is within the allowed range (-40 VDC to -75 VDC),
and that it has the correct polarity.
5. Return all xRAP-100 circuit breakers to OFF.
6. Disconnect the xRAP-100 input power sources.
7. Reinstall the xRAP-100 front cover and fasten it using the two captive
screws.
To connect the alarm cables to the xRAP-100:
Use Identification of xRAP-100 connectors (on page 3-28 ) to identify the
xRAP-100 connector functions.
1. Before starting, make sure you have all the necessary cables.
2. Connect the 68-pin SCSI connector of the facility alarm monitoring cable
to the ALARMS connector, and then securely attach the cable to the rack
inner wall using cable ties.
3. Connect the 36-pin SCSI connector of the alarm monitoring cable intended
for shelf 1 to the Shelf 1 connector on the xRAP-100.
4. Route the alarm cables towards the cable support bracket at the rear of the
xRAP-100 (see Location of xRAP-100 grounding stud (on page
3-26 )), and
attach them to the bracket with cable ties.