Platform Descriptions
Issue 8.0 July 2002
3-29
The interconnection panel provides the following interfaces:
â– LINE GROWTH CHAN LINE (X) and LINE (Y): These connectors provide
an interface that allows access to the line growth channel (Z1 and Z2
bytes) of the OC-48 high-speed lines. These connectors are reserved for
use in a future release.
â– SECTION USER CHAN LINE (X) and LINE (Y): These connectors
provide an interface that allows access to the section user channel (F1
byte) of the service and protection OC-48 high-speed lines. These
connectors are reserved for use in a future release.
â– SECTION OW (LOC OW) LINE (X) and LINE (Y): These connectors
provide an interface that allows an orderwire set access to the section
orderwire (E1 byte) for voice communications (local orderwire). For more
information about the orderwire interface, refer to Volume I, Section 6,
"Operations Interfaces."
â– LINE OW (EXP OW) LINE (X) and LINE (Y): These connectors provide an
interface that allows an orderwire set access to the line orderwire (E2 byte)
for voice communications (express orderwire). For more information about
the orderwire interface, refer to Volume I, Section 6, "Operations
Interfaces."
â– INTRAOFFICE LAN LINE (X) and LINE (Y): These connectors are
reserved for use in a future release.
■PWR: These connectors provide an interface to the −48 V power filters on
the filter panel. For more information about power, refer to Volume I,
Section 4, "Power."
Except for power, all the cabling entering the interconnection panel is
connectorized with D-subminiature connectors. The power cables are connected
to RF filters on the interconnection panel using push-on type connectors.
The filter panel (Figure 3-12) provides −48 V power filters, a PWR ON LED, and
an electrostatic discharge jack for the Enhanced High-Speed Shelf. For more
information about the filter panel, refer to Volume I, Section 6, "Operations
Interfaces."
The Enhanced High-Speed Shelf has two front covers (Figure 3-16). One cover
covers the interconnection panel and the other covers the circuit packs. Openings
are provided in the top cover that allow the filter panel to show through. The
covers are hinged and can be easily removed for maintenance access.
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