Issue 5 November 2000
363-206-208
Equipment and Front Access Cable Installation for the DDM-2000 OC-12 Multiplexer
Lucent Technologies - Proprietary
See Notice on first page
TBOS Telemetry Cabling - Front Access
NOTE:
TBOS is not available in OC-12, Release 7.
Description
NOTE:
Telemetry byte-oriented serial (TBOS) telemetry cable installation should be per-
formed if specified in the order.
TBOS is a serial telemetry interface providing system alarm and status data to a
maintenance center and remote equipment switch (RS) capability from a maintenance
center.
One connection from the telemetry equipment provides up to eight displays and can
accommodate up to eight DDM-2000 OC-12 shelves (a shelf is assigned a display). A
central office shelf and its associated remote terminal shelf (or shelves) will typically be
assigned displays associated with this single interface connection.
Additionally, other DDM-2000 OC-12 shelves in the bay may be assigned remaining
displays associated with the single interface connection. This is accomplished using
intershelf mult cabling. Bays equipped with more than two DDM-2000 OC-12 shelves
may require additional TBOS connections to the telemetry equipment.
Connection of TBOS telemetry requires a TBOS telemetry system in the office, and
thus TBOS telemetry is only used in a central office environment.
There are two options for cabling TBOS:
Cable directly to TBOS equipment
Cable to another shelf.
As mentioned in the description, a TBOS cable is required to be routed from the TBOS
telemetry system to the DDM-2000 OC-12 bay to accommodate the maximum of three
shelves in a bay.
The cable for multing TBOS also provides the intershelf mults for the craft interface
terminal (CIT) and modem. This mult cable will be installed in the “Intershelf Mult Cable
Installation - Front Access” procedure.
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