Control Unit - AT&T MERLIN LEGEND Release 2.0 Equipment And Operations Manual

Hardware Components
of jacks for each type of module. The names of modules are numbers that
identify their connectivity and port capacities. The first digit is always the
number of trunk jacks, while the third (last) digit is the number of station ports
supported. For example, the 408 GS/LS module provides four trunk jacks and
eight station jacks and supports ground-start or loop-start trunks.
8 0 0
GS/LS
Figure 2-4. Line/Trunk and Station Modules

Control Unit

2-6
-2.
T i e -
- 3 .
Trunk
Trunk
Jacks
Jacks
( L S )
-1.
- 4 .
4-pair
PFT Jacks
Jacks
(DS1)
- 2 .
T i e -
Trunk
Jacks
100D 400EM 400
GS/LS/TTR
PFT Jack
Line Jacks
(GS/LS)
Line Jacks
(GS/LS)
PFT Jack
Digital
Analog
Station
Station
Jacks
Jacks
0 0 8 0 0 8 M L X
PFT Jack
- 6 . - 3
Trunk T r u n k
(DID) Jacks(LS)
-5.
Jacks
T r u n k
-6. - 3 .
J a c k s
Trunk
T r u n k
(GS/LS)
(DID)
Jacks(LS)
- 4 .
Jacks
-4.
PFT Jacks
PFT Jacks
400 800 DID 800
PFT Jack PFT Jack
Trunk
T r u n k
Jacks
J a c k s
( L S )
(GS/LS)
Basic
Telephone
J a c k s
Analog
Analog
Station
Station
Jacks
Jacks
0 1 2 4 0 8 4 0 8
. - 7 .
Off-Premises
Telephone
(OPT) Jacks
-7.
Off-Premises
Telephone
(OPT) Jacks
008 OPT
PFT Jack
Trunk
Jacks
(GS/LS)
Digital
Station
Jacks
4 0 8
GS/LS GS/LS-MLX