NEC ELECTRA ELITE IPK II, User Manual

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T1 Trunking (with ANI/DNIS Compatibility) 2 - 941
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T1 Trunking (with ANI/DNIS Compatibility)
Description
The T1/PRI Interface ETU gives the system T1 trunking ability. This ETU uses a single
universal slot and provides up to 24 trunk circuits. In additional to providing digital-quality
trunking, the T1/PRI Interface ETU allows you to have maximum trunking ability with fewer
ETUs. This in turn makes more universal slots available for other functions.
You can program each T1/PRI ETU for any combination of the following trunks:

CO loop start

CO ground start

Direct Inward Dialing

Tie Lines
2
With Version 1100 or lower , the T1/PRI Interface ETU uses the first block of 24 consecutive
trunks. For example, if you have an COI(8) ETU installed for trunks 1~8, the T1/PRI Interface
ETU automatically uses trunks 9~32. If you have COI(8) ETUs installed for trunks 1~8 and
17~24, the T1/PRI ETU uses trunks 25~48. The T1/PRI Interface cannot use trunks 9~16
(even if available) since they are not part of a consecutive block of 24 trunks. Each T1/PRI
ETU requires that 24 consecutive ports be available in the system even if not all the ports are
used otherwise the ETU does not function. This also applies for
Version 1500 or higher
when PRG 10-39-01 is set to Disabled.
The T1/PRI Interface ETU can be programmed as a 4/8/12/16/20/24 port Fractional T1/PRI.
Version 1500 or higher is required when PRG 10-39-01 is set to Enabled.
Enhancements
This feature was added with Version 1100 .
Version 1500 or higher is required when PRG 10-39-01 is set to Enable. This allows the T1/PRI
Interface ETU to be programmed as a 4/8/12/16/20/24 port Fractional T1/PRI.
2. Two-wire (four-lead) type 1 Tie Lines (FIC TL11M) only.