Channel Configuration - Nortel DMS-100 Series Maintenance Manual

3-22 ESA maintenance overview

Channel configuration

On ESA entry, the system reconfigures the C-side channel map of the OPAC
to provide more interswitch channels for ESA call processing.
Interswitch and intraswitch channels make call connections through the
OPAC without involving a host connection. The interswitch and intraswitch
capabilities allow call processing to continue in ESA operation.
On OPAC ESA entry, the system configures the RLCM channels. The
system configures the RLCM channels as is all DS-1 ports are not equipped
except for primary ports 0 and 1. Ports 0 and 1 must be equipped in OPAC
ESA.
More interswitch channels are made available for unit-to -unit calls, by
reconfiguring the C-side channels on ESA entry. Refer to the following
table for a list of the channel breakdown in OPAC ESA.
The OPAC does not gain channels through the reconfiguration of C-side
channels on OPAC ESA entry. The OPAC gains in the number of
interswitch channels offset by a decrease in the number of intraswitch
channels.
Channel availability after ESA entry
Port number
0
1
2
297-8211-550 Standard 05.01 August 1999
inter-customer group calling by the same dialing plan, except lines with
the denied incoming option
the system treats primary numbers of the multiple appearance directory
(MADN) groups as regular MDC lines
multiple centrex customer dialing plans
Number of
Intrachannels
intrachannels
6 2, 7, 12, 18, 23,
28
6 2, 7, 12, 18, 23,
28
18 2, 3, 5, 7, 8, 10,
12, 13, 15, 18,
19, 21, 23, 24,
26, 28, 29, 31
Number of
interchannels
0
0
12
—continued—
Interchannels
none
none
1, 4, 6, 9, 11, 14,
17, 20, 22, 25,
27, 30