Tn760D Tie Trunk Option Settings - Lucent Technologies definity Installation Manual

DEFINITY Enterprise Communications Server Release 6
Installation and Test for Compact Modular Cabinets 555-230-128
2 Installation Completion and Cable Pinouts

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
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.
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
Receive (E-Lead)
On-Hook Off-Hook
1
open /battery ground
ground open
open ground
ground open
Issue 3
May 1998
Page 2-5
and Table 2-4.
1
/battery