Avaya CMC1 사용자 설명서
Completing Installation and Cable Pinouts
158 Installation, Upgrades and Additions for Avaya CMC1 Media Gateways
TN760E Tie Trunk Option Settings
The TN760E 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.
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 (
), set the switches on the
TN760E and administer the port using
Table 31: Signaling Formats for TN760E
Mode
Type
E & M
Type I Standard (unprotected)
E & M
Type I Compatible (unprotected)
Protecte
d
d
Type I Compatible, Type I
Standard
Standard
Simplex
Type V
E & M
Type V
E & M
Type V Revised
Table 32: Signaling Type Summary
Signaling Type
Transmit (M-Lead)
Receive (E-Lead)
On-Hook
Off-Hook
On-Hook
Off-Hook
Type I Standard
ground
battery
open
1
/battery
1. An open circuit is preferred instead of battery voltage.
ground
Type I Compatible
open
1
/battery
ground
ground
open
1
/
battery
Type V
open
1
/battery
ground
open
ground
Type V Reversed
ground
open
ground
open