Tn760D Tie Trunk Option Settings - Avaya CMC1 Installation, Upgrades And Additions

TN760D Tie Trunk Option Settings

TN760D Tie Trunk Option Settings
The TN760D Tie Trunk circuit pack interfaces between 4 tie trunks and the TDM
bus. Two tip and ring pairs form a 4-wire analog transmission line. An E and M
pair are DC signaling leads used for call setup. The E-lead receives signals from
the tie trunk and the M-lead transmits signals to the tie trunk.
To choose the preferred signaling format
switches on the TN760D and administer the port using
and Table 2-4 on page
Table 2-2. Signaling Formats for TN760D
Mode
E & M
E & M
Protected
Simplex
E & M
E & M
Table 2-3. Signaling Type Summary
Signaling Type
Type I Standard
Type I Compatible
Type V
Type V Reversed
1. An open circuit is preferred instead of battery voltage.
555-233-118
2-10.
Type
Type I Standard (unprotected)
Type I Compatible (unprotected)
Type I Compatible, Type I Standard
Type V
Type V
Type V Revised
Transmit (M-Lead)
On-Hook Off-Hook
ground battery
1
open /battery ground
1
open /battery ground
ground open
(Table 2-2 and Table 2-3), set the
Figure 2-2 on page 2-10
Receive (E-Lead)
On-Hook
1
open /battery
ground
open
ground
Issue 5 October 2002
Off-Hook
ground
1
open /battery
ground
open
2-9