Figure 4-5: Connecting Dc Power Cables To The Rap-Bg - Eci Telecom NPT-1020 Installation And Maintenance Manual

NPT-1020 Installation and Maintenance Manual
3. Identify the various terminals located on the power source terminal board by referring to the
following figure (showing the terminals at source A side; a similar board is used at source B side).
C
AUTION: Before connecting the power leads, make sure to identify the terminal polarity on
the RAP-BG power terminal board.
4. Bring the two leads of DC source A input power cable to the appropriate RAP-BG opening.
5. Attach the lug of the red lead to the positive stud terminal marked (+) on the power terminal board
(see the previous figure).
6. Secure the lug using a flat washer, spring washer, and nut. Tighten the nut with a torque of 1450 N cm
to 1600 N cm.
7. Attach the lug of the black lead to the negative stud terminal marked (-) on the power terminal board
(see the previous figure).
8. Repeat Step 6 for the black lead lug.
9. If an additional power source (source B) is used, repeat Steps 3 to 8 for source B.
10. Securely attach the DC input power cables to the rack inner wall using cable ties.
During the following procedure, refer to the figures in
To connect the DC power cables to a platform:
1. Before starting, identify the openings used to route power cables to the RAP-BG.
2. Insert the DC power cable end, terminated with lugs, of the NPT-1020 platform through the opening
for platform power cables connecting to source A. If more platforms are installed in the rack, start by
connecting the Platform 1 cable.
3. Attach the red lead lug of the platform power cable to the positive stud terminal of Platform 1 on the
power terminal board.
4. Secure the lug using a flat washer, spring washer, and nut. Tighten the nut with a torque of 320 N cm
to 350 N cm.
ECI Telecom Ltd. Proprietary

Figure 4-5: Connecting DC power cables to the RAP-BG

Connecting DC power cables to the
Installing Equipment
RAP-BG.
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