Tadiran Telecom Coral IPx 500, Installation Manual, Page: 171 / 544

External Connections
5-1
Ma
in D
istribu
tio
n Frame (MD
F
)
5
5.1
Main Distribution Frame (MDF)
This chapter describes the MDF and the pinout connections to the cage and external
equipment. For hardware installation instructions, refer to
Hardware Installation
Procedure
.
The MDF may be factory supplied by the manufacturer and installed in some
countries only. For more information, see
page 5-21, MDFipx Units
.
The MDF is often located adjacent to other signaling systems, such as:
„
Paging and public address systems
„
Voice messaging systems
„
Alarm and monitoring systems
„
Closed circuit television
„
Property management systems
„
Building and energy management systems
Therefore, care should be taken to plan the MDF layout before fastening components
to the wall or mounting surface, such as:
„
Trunk circuits
„
Wired and wireless station equipment
„
Database programming terminals
„
Report printers
„
Music and/or audio sources
„
External public address or paging equipment
„
Recording devices
Connections to most telecommunications interfaces of the Coral IPx 500 cabinet are
made via standard 25 pair Input/Output (I/O) connectors located on the top panel of
the peripheral cards. Individual trunk and station interface circuits may then be
cross-connected from the Coral IPx 500 I/O punch blocks to other punch blocks that
terminate trunk circuits, station wiring, and other external equipment. See
Figure 5-1
.