Dlp-H253 Install External Alarm Cables On The Ons 15310-Ma Sdh - Cisco ONS 15310-MA SDH Procedure Manual

Using a voltmeter, verify the office battery and ground at the following points on the fuse and alarm
Step 1
panel:
a.
b.
According to site practice, insert a fuse into the fuse position.
Step 2
Using a voltmeter, verify the shelf for –48 VDC battery and ground:
Step 3
a.
b.
Return to your originating procedure (NTP).
Step 4

DLP-H253 Install External Alarm Cables on the ONS 15310-MA SDH

Purpose
Tools/Equipment
Prerequisite Procedures
Required/As Needed
Onsite/Remote
Security Level
Plug one end of the alarm cable terminated with a DB-37 connector into the ALARM IN port at the rear
Step 1
of the ONS 15310-MA SDH.
Step 2 Plug the other end of the cable into the alarm-collection equipment according to local site practice.
Step 3 Plug one end of the alarm cable terminated with a DB-25 connector into the ALARM OUT port at the
rear of the ONS 15310-MA SDH.
Step 4 Plug the other end of the cable into the alarm-collection equipment according to local site practice.
Cisco ONS 15310-MA SDH Procedure Guide, Release 9.1 and Release 9.2
18-54
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 -44 VDC and -52 VDC. Place the red test
lead on the B-side connection and verify that it is between -44 VDC and -52 VDC.
Note The voltages -44 VDC and -52 VDC are the minimum and maximum voltages required to
power the chassis. The nominal steady-state voltage is -48 VDC.
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.
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
–44 VDC and –52 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.
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
–44 VDC and –52 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.
This task installs alarm cables on the ONS 15310-MA SDH so that you can
provision external (environmental) alarms and controls.
Alarm In cable, unshielded cable terminated with a DB-37 connector
Alarm Out cable, unshielded cable terminated with a DB-25 connector
NTP-H150 Install the Shelf Assembly, page 1-5
As needed
Onsite
None
Chapter 18 DLPs H200 to H299
78-19416-01