Mdf Cross-Connect Fields - Avaya S8700 Installing Manual

122 Installing the S8700 Multi-Connect

MDF Cross-Connect Fields

MDF Cross-Connect Fields

Each Main Distribution Frame (MDF) contains a trunk/auxiliary field and a distribution field.
The trunk/auxiliary field contains three cross-connect areas:
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The distribution field contains four cross-connect areas:
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NOTE:
The 16-port analog line circuit pack requires an adapter cable to connect from one
connector on the S8700 Multi-Connect configuration to two 25-pair connectors on a
terminal block. Two MET circuit packs require a concentrator cable to connect from two
connectors on the S8700 Multi-Connect configuration to one 25-pair connector on a
terminal block.
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The green field terminates the network interface leads from the Central Office (CO) and
provides the terminals to cross-connect the leads to the purple or yellow fields as
required. A single row of the 110-type terminal block can terminate twenty-four 1-pair,
eight 3-pair, or twelve 2-pair trunks.
The purple field terminates the trunk circuits from the S8700 Multi-Connect
configuration with WP-90929, List 1 or 3 concentrator cables. Also, 25-pair cables can
be used to terminate trunk circuits from the S8700 Multi-Connect configuration with
each trunk circuit pack connecting to one 25-pair row of the 110-type terminal block.
Each terminal block row can terminate twenty-four 1-pair, eight 3-pair, or twelve 2-pair
trunks.
The yellow field provides cross-connect terminals for all miscellaneous leads from the
S8700 Multi-Connect configuration, such as alarm monitors, emergency transfer relay
power, and attendant console power. This field is used for emergency transfer wiring,
paging equipment, music sources, and so forth.
The purple field (port field) terminates 25-pair cables from the S8700 Multi-Connect
configuration. Each line circuit pack connects to one 25-pair row of the 110-type
terminal block. One 25-pair cable is required for each line circuit pack.
The yellow field (auxiliary field) terminates all 25-pair cables from the auxiliary cabinet
and the Processor Interface. The yellow field is located in the lower right-hand corner of
the distribution field.
The white field (station field) terminates the station wiring. The white field indicates
3-pair station circuits (eight circuits per 25-pair cable) routed through a satellite closet.
The blue field (station field) also terminates station wiring. The blue field indicates 3-
and/or 4-pair station circuits (eight or six circuits, respectively, per 25-pair cable). The
fourth pair, of the 4-pair station circuit provides adjunct power from the cross-connect
field on an as-needed basis to terminals within 250 feet (76 m) of the MDF.
May 2002