Task 3: Connecting the Power Cables to the CTP2000 Platform
WARNING: Before you begin this procedure, be sure the power source is
turned off, the device is turned off, and proper grounding wires are attached.
To connect power cables to the device:
1. Be sure you have completed “Task 1: Turning Off All CTP Platform Power” on page 104
and “Task 2: Connecting the Grounding Cable to the CTP Platform (CTP2056 Platform
Only)” on page 104.
WARNING: The wiring color code of the power cables depends on the
color coding of the DC power source installed at your site. Color code
standards for DC wiring do not exist. To ensure that the correct polarity is
connected to the device power units, confirm the connection of the power
cables to the + (positive) and – (negative) leads at the power source.
2. Remove the nuts and locking washers from the posts for the power input (A or B)
using a small insulated adjustable wrench.
3. Place one negative (neutral) cable lead on the post labeled –48 VDC.
4. Replace the locking washers and nuts, and tighten the nuts to secure the connection.
5. Place the other cable lead on the post labeled RTN.
6. Replace the locking washer and nut, and firmly tighten the nut to secure the connection.
7. Attach the opposite end of Power A's wire leads to the appropriate leads on your
power source.
NOTE: To provide redundancy, do not use the same power source for
Power A and Power B leads.
8. Repeat Steps 1–7 for each power supply module in your configuration.
For more information about CTP2000 Series cable and pinout specifications, refer Cable
and Pinout Specifications.
Related
Documentation
• CTP2000 Management Ports on page 102
• Cabling a CTP2000 Interface Module on page 103
105Copyright © 2017, Juniper Networks, Inc.
Chapter 15: Cabling