DEFINITY Enterprise Communication Server Release 9
Installation and Maintenance for Survivable Remote EPN
555-233-121
Issue 2
November 2000
SREPN Maintenance
2-2
SREPN connections
2
SREPN connections
■
The EPN can be remoted over fiber optic cables through
Switch Node Interface (SNI) and Expansion Interface (EI) circuit packs
■
DS1-CONV facilities
Figure 2-1
shows an example of the essential hardware connections for the
Survivable Remote EPN over DS1-CONV facilities.
Figure 2-1.
Survivable Remote EPN hardware connections
over DS1-CONV facilities
!
CAUTION:
Only the TN1654 DS1 CONV circuit pack can be used for DS1-CONV-
remoted SREPN systems.
The “M” in
Figure 2-1
indicates the TN775C Maintenance circuit pack that
monitors the status of the fiber link between the Release 9r and the SREPN.
Figure Notes:
1. Release 9r
2. Release 9si processor complex
3. Survivable Remote processor (SRP)
4. Survivable Remote EPN (SREPN)
Collocated equipment
cydfsrs2 KLC 010899
S
N
I
S
N
I
E
I
E
I
M
D
S
1
C
D
S
1
C
D
S
1
C
D
S
1
C
TN2301
1
2
3
4