A3-4 Issue 1 November 1998
363-208-011, Appendix 3
Test Head Installation
Test Head Installation
Step 1:
Install two alignment pins (C 402444491) to the miscellaneous frame
where the test head is to be installed.
Step 2:
Attach the appropriate mounting brackets on the test head.
Step 3:
Mount the test head to the frame with the four screws that came with
the unit.
Step 4:
Connect the ground wire between the lug on the rear of the test head
and the frame. Scrape the paint from around the hole on the frame
that will be used for the ground strap.
Remote Test Head Interconnections
General
These procedures install the interconnect cables between the Lucent
Technologies RTH-7000 or the General Signal Networks Tau-tron
ngRTH
Remote
test head and the associated power supplies and between the test head and the
SLC
-2000 Access System Central Office Terminal interfaces. Refer to Figure 1-1
for the overall system interconnections.
Test Head Interconnections
General
The test head is powered (via J12) from -48v dc supplied by a battery supply or
miscellaneous fuse panel provided by the customer. A separate ringing supply, or
the fuse panel, supplies 20Hz ringing to the test head via the J15 connector.
The physical interface from the test head J13 connector to the
SLC
-2000 system
is via the ARM shelf's DS1 TIMING OUT/RT RMU LINK connector J44. This is a
DB9 connector with a RS-232 interface.
The analog connections to the voice frequency pairs and to the test access path
(TAP) are via J14.
NOTE:
The cable assemblies with part numbers with the prefix of 955- are
obtained from Tau-tron.