Requirement:
The required CABLES from each READOUT ELECTRONICS location to
to the SVT CARRIERS or CARRIER INTERFACES
are listed in Table II. The cross sectional area of the bundle of CABLES
(360 CABLES)
(from 12
READOUT ELECTRONICS locations) that enters each end of the SUPPORT STRUCTURE
is 35 
(including 36 HIGH VOLTAGE and 36
CALIBRATION CABLES, Table I).
Table: CABLES required from each
SVT READOUT ELECTRONICS location to SVT CARRIERS or SVT CARRIER
INTERFACES. There are 12 READOUT ELECTRONICS locations on each of
the two TPC endcaps. The total number of CABLES entering the SVT
SUPPORT STRUCTURE from each end is therefore 12 times
the numbers in this table plus 36 HIGH VOLTAGE and 36 CALIBRATION CABLES
passed
through the READOUT ELECTRONICS locations. All CABLES are plenum rated.
Justification:
The SVT has 142 CARRIER INTERFACES. Each READOUT ELECTRONICS must connect with 6 CARRIER INTERFACES. Each CARRIER INTERFACE requires LOW VOLTAGE (8 conductor, same as required for READOUT ELECTRONICS), TIMING/CONTROL (8 shielded pair), MULTIPLEXED ANALOG lines (4 shielded pair), and CARRIER ID, MONITORS lines (10 conductor).
The total number of CABLES required for each side of the SVT is 12 times the numbers in Table II, plus 36 HIGH VOLTAGE and 36 CALIBRATION CABLES listed in Table I.