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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
Figure 2-6
cydfsrpn KLC 011199
Figure Notes:
1. Fiber transmit (TX) and receive (RX)
pairs for A and B carriers.
2. SRP AUX B25A 25-pair cable; max.
length = 50 ft (15 m):
Major SRP power failure alarm lead
Remote restore signal leads
3. TN2301 - SRSwitch B25A 25-pair
cable; max. length = 50 ft (15 m):
-48V from SREPN (through wall
field)
SRSwitch -48V major SRP power
failure alarm lead
SRSwitch -48V signal leads
Figure 2-6. Detailed SRP direct fiber connections
shows the hardware connections in the direct fiber system.
8
Wall field
E
A
I
E
B
I
3
Transmit (TX)
and receive (RX)
fiber pair
S.R.
switch
SREPN cabinets
B-carrier
4
5
2
5
A-carrier
LGIU
B
7
A
2
SRP
1
EI
AUX
6
Collocated equipment
4. SREPN AUX connector B25A 25-pair cable; max.
length = 50 ft (15 m). Refer to the
connections''
in
Chapter
-48V to SRSwitch (through wall field)
SRP Alarm
SRSwitch signal leads
5. Fiber transceivers (9823A)
6. 14-in. (36 cm) Y-Cable (Comcode 847245750)
7. Fiber optic cable pairs
8. Release 9r switch
Issue 2
November 2000
2-10
E
I
5
E
T
I
N
7
7
5
AUX
C
5
System
Access
Terminal
''MDF
1:
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