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5-2
Coral IPx 800 Installation Manual
to other punch blocks that terminate trunk circuits, station wiring, and other external
equipment. See
Figure
5-1.
In some cases, connections are made via RJ-45 or DA-15S connectors on the front panel
of a Coral circuit card. For example, the 2DT, UDT, UGW, IPG, PRI, T1, and 30T digital
trunk interfaces. See
page 5-25, I/O Connections Via Front Panel on page
the KB0 database Programming Interface (PI) port appears on a DB9 connector on the
MEX-IP2 Common Control cards. Plan for permanent wiring to these card types
accordingly.
In some cases, connections are made via RJ-45 connectors on the rear panel of the card
cage. For example, the 2DT (Interface #0), PUGW, UGW-E, UGW (layout B1),
PRI (layout UDT "C"), T1 (layout UDT "C"), and 30T (layout UDT "C"). See
I/O RJ-45 Connections Via Rear Panel on page
Tip:
It is recommended to terminate all the I/O connectors available in the
system on punch blocks at the MDF even if some cables are not initially
used. This saves time and effort when the system expands.
MDF Size and Location Considerations
In standard MDF wiring convention, ancillary equipment wiring (key systems, paging,
etc.) is placed to the left of the MDF. Coral I/O cables are placed next to them (on the
left). Next left are protection devices (if any). The outermost cables (on the left) are the
Building Entrance cables (UG, underground, demarcation point cables). Station and
other internal building wiring is placed on the right side of the MDF. This order
ensures the shortest path for block to block cross connect wiring and minimizes
overlap.
Tip:
Anticipated expansion should be taken into consideration (external and
internal cables, protective devices, station wiring, etc.) when planning the
MDF. If a system is installed at near capacity, the MDF should be laid out so
that a move to a larger Coral cabinet can be made easily.
5-25.
5-25. Similarly,
page 5-43,
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