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Wiring the System
TYPICAL MERLIN II
SYSTEM WIRING
Figure 2-2 illustrates typical MERLIN II system wiring.
Central office lines enter the site through a 25-pair cable.
The network interface in this example is a 66-type block
configured as an RJ21-X-type connector. From the
network interface, a DIW cable takes the 25 lines to a jack
field for outside lines. The jack field interfaces the
outside line wiring with D2R cords that plug into the line
jacks on the control unit modules. At this point, outside
lines are connected to the control unit.
The station side of the control unit goes to a jack field for
voice terminals through D8W cords. The other side of the
jack field goes to the 102A connecting blocks through 4-
pair DIW cable. The voice terminals plug directly into the
connecting blocks through four-pair modular cords.
2-12 Wiring the System