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DEFINITY Enterprise Communication Server Release 9
Installation and Maintenance for Survivable Remote EPN 555-233-121
2
SREPN Maintenance
SREPN connections
Interfacing circuit packs
The Survivable Remote equipment can operate through:
''Expansion Interface connections''
''DS1 CONV connections''
Expansion Interface connections
TN570C Expansion Interface (EI) circuit packs use either the 9823A
(multimode) or the 300A (single mode) transceivers.
DS1 CONV connections
TN1654 DS1 Converter supports T1/E1 remoting and wideband
applications.
Standard and High Reliability systems use pairs of TN1654, not mixed with
the earlier TN574.
Critical Reliability systems require TN1654 circuit packs on the duplicate
pair.
NOTE:
A new SREPN system includes the TN570C EI circuit pack. Earlier EI
circuit packs (for example, TN570B) are not supported.
Issue 2
November 2000
2-5
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