Nortel Networks 1000 - Manual (Page 617)

Configuration 617
The trunk type, terminating impedance, and balance network are selected
by making service change entries in the Trunk Administration program LD
14. See
Table 231 "Trunk types - termination impedance and balance
network (NT8D14BA, NT8D14BB)" (page 615) for the proper values for the
trunk type and loop length. Refer to Software Input/Output Reference —
Administration (NN43001-611) for LD 14 service change instructions.
Before the appropriate balance network can be selected, the loop length
between the near-end (CS 1000) and the far-end (a Central Office, for
example) must be known. To assist in determining loop length, some
typical resistance and loss values for the most common cable lengths
are given in
Table 232 "Cable loop resistance and loss" (page 616) for
comparison with values obtained from actual measurements.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.