Dlp-H20 Measure Voltage - Cisco ONS 15310-MA SDH Procedure Manual

Chapter 16 DLPs H1 to H99

DLP-H20 Measure Voltage

Purpose
Tools/Equipment
Prerequisite Procedures
Required/As Needed
Onsite/Remote
Security Level
Using a voltmeter, verify the office ground and power shows the power terminals:
Step 1
a.
b.
Using a voltmeter, verify the shelf ground and power wiring:
Step 2
a.
b.
Return to your originating procedure (NTP).
Step 3
78-19416-01
This task measures power so you can verify correct power and returns.
Voltmeter
NTP-H151 Install the Power and Ground, page 1-12
Required
Onsite
None
Place the black lead (positive) on the frame ground on the rack. Hold it there while completing
Step b.
Place the red lead (negative) on the fuse power points and alarm panel to verify that they read
between –44 VDC and –52 VDC (power) and 0 (return ground).
Place the black lead (positive) on the RET1 and the red lead on the BAT1 point. Verify a reading
between –44 VDC and –52 VDC. If there is no voltage, check the following:
Battery and ground reversed to the shelf
•
Battery is open or missing
•
Return is open or missing
•
Repeat Step 2 for the RET2 and BAT2 if the B power feed is provided.
Cisco ONS 15310-MA SDH Procedure Guide, Release 9.1 and Release 9.2
16-25