17-17
Cisco ONS 15454 SDH Procedure Guide, R7.0
78-17194-01
Chapter 17 DLPs D1 to D99
DLP- D22 Install Fiber-Optic Cables in a 1+1 Configuration
Step 1 Using a voltmeter, verify the office battery and ground at the following points on the fuse and alarm
panel:
a. To verify the power, place the black test lead of the voltmeter to the frame ground. Place the red test
lead on the A-side connection and verify that it is between –40.5 VDC and –57 VDC. Place the red
test lead on the B-side connection and verify that it is between –40.5 VDC and –57 VDC.
Note The voltages –40.5 VDC and –57 VDC are, respectively, the minimum and maximum
voltages required to power the chassis.
b. To verify the ground, place the black test lead of the voltmeter to the frame ground. Place the red
test lead on the A-side return ground and verify that no voltage is present. Place the red test lead on
the B-side return ground and verify that no voltage is present.
Step 2 Insert the fuses and complete the chassis power up according to site practice. Verify that the chassis fuses
rating does not exceed 30 A.
Step 3 Using a voltmeter, verify the shelf for –48 VDC battery and ground:
a. To verify the A-side of the shelf, place the black lead of the voltmeter to the frame ground. Place the
red test lead to the BAT1 (A-side battery connection) red cable. Verify that it reads between
–40.5 VDC and –57 VDC. Then place the red test lead of the voltmeter to the RET1 (A-side return
ground) black cable and verify that no voltage is present.
Note The voltages –40.5 VDC and –57 VDC are, respectively, the minimum and maximum
voltages required to power the chassis.
b. To verify the B-side of the shelf, place the black test lead of the voltmeter to the frame ground. Place
the red test lead to the BAT2 (B-side battery connection) red cable. Verify that it reads between
–40.5 VDC and –57 VDC. Then place the red test lead of the voltmeter to the RET2 (B-side return
ground) black cable and verify that no voltage is present.
Step 4 Return to your originating procedure (NTP).
DLP-D22 Install Fiber-Optic Cables in a 1+1 Configuration
Note The Cisco OC-3 IR/STM-1 SH, OC-12 IR/STM-4 SH, and OC-48 IR/STM-16 SH interface optics, all
working at 1310 nm, are optimized for the most widely used SMF-28 fiber, available from many
suppliers.
Purpose This task installs fiber-optic cables on optical (STM-N) cards in a 1+1
linear configuration.
Tools/Equipment Fiber-optic cables
Prerequisite Procedures NTP-D112 Clean Fiber Connectors, page 15-15
Required/As Needed Required
Onsite/Remote Onsite
Security Level None
To Next Page
Loading...
