a) Place the black lead (positive) on the frame ground on the bay. Hold it there while completing substep b.
b) Place the red lead (negative) on the fuse power points on the third-party power distribution panel to verify
that they read between –40.5 VDC and –57.6 VDC (power) and 0 (return ground).
Step 2
Using a voltmeter, verify the shelf ground and power wiring:
a) Place the black lead (positive) on the RET1(A) and the red lead on the -48V (A) point. Verify a reading
between –40.5 VDC and –57.6 VDC. If there is no voltage, check the following and correct if necessary:
•
Battery and ground are reversed to the shelf.
•
Battery is open or missing.
•
Return is open or missing.
Step 3
Repeat Steps 1 and 2 for the RET2 (B) and -48V (B) of the redundant power supply input.
Step 4
Return to your originating procedure (NTP).
Cisco NCS 2000 Series Hardware Installation Guide
106
Cisco NCS 2002 Shelf Installation Acceptance Test
DLP-L61 Measuring DC Voltage on the NCS 2002 Shelf
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