Maintenance-Object Repair Procedures
555-233-143
8-272
Issue 1 May 2002
NOTE:
TN230x circuit packs are not interchangeable.
ATM Circuit Emulation Service
Under ATM Circuit Emulation Service (CES), you simulate ISDN-PRI circuits by
assigning ports to signaling groups. Each signaling group represents a PRI
circuit, and the ports in the group represent the D channel and B channels of that
circuit. TN230x circuit packs support up to 248 ports per circuit pack.
Virtual D channels.
Non-facility associated signaling is not supported under
ATM-CES, so you must reserve one port in each signaling group for use as a
D channel (channel 24 when emulating a T-1 ISDN facility, channel 16 when
emulating an E-1 facility). The D channel can be any physical port from 9 to 32.
Virtual circuits.
The TN230x can support a varied number of virtual circuits,
depending on the switch and the administration of the circuit pack.
lists the possibilities for various DEFINITY ECS models.
Virtual trunk groups.
You cannot bundle physical DS1 ISDN-PRI circuits and
virtual ATM-CES circuits into the same trunk groups. Virtual circuits can only be
assigned to all-virtual, all-ATM trunk groups.
lists the possible
trunk-group capacities.
Table 8-114.
Circuit and channel capacities, for each DEFINITY model
Model
Ports
Emulated
circuits
(signaling
groups)
Channels/circuit
Virtual
D channels
Virtual
B channels
R6csi
248
1 to 8
24 (T1), 31 (E1)
1–8 6–240
R6si
248
1 to 8
24 (T1), 31 (E1)
1–8 6–240
R6r
248
1 to 8
24 (T1), 31 (E1)
1–8
6–240
Continued on next page
Table 8-115.
ATM CES capacities by DEFINITY model
Model
Ports per
trunk group
(max)
Trunk groups per
switch (max)
Trunks per
switch (max)
R6csi 99
99
400
R6si
99
99
400
R6r
255
666
400
Continued on next page
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 ...