Avaya DEFINITY Server CSI Maintenance Manual page 759

ATM-TRK (Circuit Emulation Service Circuit Pack)
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.
the information for the Avaya Definity Server CSI.
Table 88. Circuit and channel capacities for Avaya Definity Server CSI
Emulated circuits
Model Ports (signaling groups)
R6CSI 248 1 to 8
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.
capacities for an Avaya Definity Server CSI.
Table 89. ATM CES capacities for Avaya Definity Server CSI
Model Ports per trunk group (max)
R6csi 99
Table 90 shows the ATM CES capacities for T1 and E1 circuits on the Avaya
Definity Server CSI.
Table 90. Ports available for trunking, for each ISDN facility type
Channels per signaling
Type group (trunk)
T1: 24
E1: 31
LEDs
The ATM circuit pack LEDs give you a visual indication of the condition of the
TN230x circuit pack
555-233-119
Channels/circuit
24 (T1), 31 (E1)
Trunk groups per switch (max)
99
Max. signaling groups
(trunks) per circuit pack
8
8
(Table 91).
Virtual Virtual
D-channels B-channels
1-8 6-240
Table 89 lists the trunk-group
Trunks per switch (max)
400
Max. available Reserved
ports ports
192 ports 1-8
248 ports 1-8
Issue 5 October 2002
Table 88 lists
Total
ports
256
256
759