Nortel Passport 15000 Preparation Manual page 79

The fanout or sparing panels can also be installed in a mounting apparatus
other than the NEBS 2000 frame (NTRU04). Since most of the sparing panels
that are used with a Passport 15000 or 20000 are 19 inches wide, they can be
mounted on a 19-inch wide apparatus, or on the 21-inch wide NTRU04 using
the EIA-to-NEBS adapter brackets in the kit NTHW21. Panel dimensions are
identified in 241-1501-200 Passport 15000, 20000 Hardware Description,
the chapter on termination panels.
The sparing or fanout panels connecting to a Passport 15000-VSS must be
located in a different mounting apparatus. There is no room in the frame to
accommodate the sparing or fanout panels.
The sparing or fanout panel connecting to a Passport 15000 interworking with
a Shasta 5000 in the same frame must be located in different mounting
apparatus. There is no room in the frame to accommodate the sparing or
fanout panels.
Cabling considerations for a termination panel
Nortel Networks makes prefabricated cable assemblies of various lengths
available for the DS3 function processor (FP) cards. Typical cable lengths are
2.5 m (8 ft), 5 m (16 ft), or 15 m (49 ft). An FP an with 8W8 connector on the
faceplate requires a proprietary cable assembly that cannot be custom made.
The prefabricated cable assemblies that are offered for each FP and the
specifications to custom make your own lengths are described in
241-1501-200 Passport 15000, 20000 Hardware Description, the chapter on
processor cards.
A frame with two fully provisioned shelves can have up to 700 mini-coax
cables or 284 fiber optical cables, or a combination of both connected to the
front of the Passport 15000 or 20000 shelf. Since cable slack for all coax
signaling cables cannot occur at the shelf, the location of the electrical
function processor (FP) cards relative to the location of the sparing or fanout
termination panel directly affects how long each cable will be.
Consider where the sparing or fanout panel will be located relative to:
• how many and how far the cables must be routed from the FP in a slot to
the termination panel
Passport 15000, 20000 Site Requirements and Preparation Guide
Chapter 2 Planning considerations 79
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