Avaya G700 Maintenance Manual page 196

6 Avaya MultiVantage Software-Controlled Maintenance:
CO
NT2
S/T
TE
Figure 11. Integrated Trunk-Side BRI, ISDN Interface Reference Points
Table 57. ISDN Interface Reference Point definitions
LT Logical Terminal
V Primary Rate user/network (asymmetrical) trunk interface. The ECS is capable of
acting as the user or as the network side of this 1.544 - or 2.048-Mbps interface.
R Interface between Terminal Equipment and Network Termination
S Basic Rate network-side 4-wire line interface
S/T 4-wire Basic Rate connection to a Network Termination
T 4-wire Basic Rate interface to a Network Termination.
TE Terminal Equipment
U Basic Rate network-side 2-wire line interface.
1 TN556B ISDN-BRI 4-Wire S/T-NT Line (A-law)
2 TN 2185 ISDN-BRI 4-Wire S Interface (Trunk Side)
196
V
PRI
U
T
LT NT1
NT NT
2-Wire 4-Wire
U
NT
2-Wire
NT1
T
NT
2-Wire
ISDN Interface Reference Points
MG-BRI (BRI Trunk Media Module MM720)
S
PBX
NT2
4-Wire
1
S
NT2
4-Wire
2
TE
3
U
LT
4
NT
2-Wire
LT NT2
S/T
TE TE
5
PBX
*
.
†
Maintenance for S8300/S8700 and G700
555-234-101 — Issue 2 — October 2002
TE
R
Terminal
Adapter
T
NT1
NT
4-Wire
cydfisdn RPY 072397