Maintenance-Object Repair Procedures
555-233-143
8-1550
Issue 1 May 2002
Figure 8-95.
Integrated Trunk-Side BRI, ISDN Interface Reference Points
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
1
.
T
4-wire Basic Rate interface to a Network Termination.
2
TE
Terminal Equipment
U
Basic Rate network-side 2-wire line interface.
CO
NT
2-Wire
NT
2-Wire
NT
2-Wire
NT
4-Wire
4-Wire
4-Wire
NT
2-Wire
NT
4-Wire
PBX
PBX
LT
TE
TE
TE
cydfisdn RPY 072397
NT2
LT
LT
NT2
NT2
Terminal
Adapter
NT2
S/T
TE
TE
NT1
V
PRI
U
U
T
S/T
T
S
S
U
T
R
NT1
NT1
ISDN Interface Reference Points
1
2
3
4
5
Summary of Contents for S8700 Series
Page 50: ...Maintenance Architecture 555 233 143 1 26 Issue 1 May 2002 ...
Page 74: ...Initialization and Recovery 555 233 143 3 12 Issue 1 May 2002 ...
Page 186: ...Alarms Errors and Troubleshooting 555 233 143 4 112 Issue 1 May 2002 ...
Page 232: ...Additional Maintenance Procedures 555 233 143 5 46 Issue 1 May 2002 ...
Page 635: ...status psa Issue 1 May 2002 7 379 555 233 143 status psa See status tti on page 7 406 ...
Page 722: ...Maintenance Commands 555 233 143 7 466 Issue 1 May 2002 ...