Total Access
®
3000/3010 System Manual
6TAPRP401-1E
TOTAL ACCESS 3000/3010
PREP-401
Page 6 of 10
© 2002, ADTRAN, Inc.
1.5.2
DSX-3
If a shelf is to be equipped with a standard DS3, STS-1, or DS3 Cell Switch Module, a
single position on the DSX-3 cross connect should be reserved for the shelf. Two runs
of coax cable should be routed from a position on the DSX-3 cross connect to the
anticipated location of the shelf and terminated with standard BNC connectors on the
shelf end. The cables should be labeled IN and OUT at the shelf end to indicate where
they are connected on the DSX-3 cross connect. Either standard 734 or 735 type coax
cable is recommended depending on the cable run length listed in
Table 3
.
Coax Cable Type
Use for Run Lengths Up To
734
450 Feet
735
150 Feet
Table 3. TSI Amphenol Cable Model Number for DSX-1 Applications
Cables designed for this application may be ordered to length through Telephone
Services, Inc. (TSI) of Florida. For connecting the shelf to a standard DSX-3 cross
connect, the following TSI Part Numbers may be used:
• 734 Coax Cable with BNC connectors on both ends:
CA1-xxxx-X44-734-1
• 734 Coax Cable with BNC connector on one end only:
CA1-xxxx-X41-734-1
• 735 Coax Cable with BNC connectors on both ends:
CA1-xxxx-X34-735-1
• 735 Coax Cable with BCN connector on one end only:
CA1-xxxx-X31-735-1
where “xxxx” represents the length of the cable in feet.
All coaxial cable for Total Access 3000/3010 DS3 and STS-1 signals shall meet the
following minimum specifications:
• The coaxial cable shall have characteristic impedance of 75 Ohm.
• Nominal mutual capacitance shall not exceed 20.4
p
F/foot
• The cable shall conform to ANSI standard T1-102 (1993) pulse mask definition.
The standard reference cable is “WECO Type 728A” at 450 feet.
Approved cable types include:
• WECO 728A
• Lucent 728B
• Lucent 734A
• Belden 9231
• Belden 1809A
Lucent type 735A cable may be used up to a maximum length of 250 feet.