6TAENG201-1E
TOTAL ACCESS 3000/3010
ENG-201
Page 22 of 32
© 2002, ADTRAN, Inc.
Total Access
®
3000/3010 System Manual
1.6
Network Connections
Total Access 3000/3010 supports three different physical mediums for network
connections: copper pairs, coaxial cables, and fiber optic cables. Use of one type of
network connection does not necessarily preclude simultaneous use of another type of
network connection.
1.6.1
Cable Specifications
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 pF/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.
All connections to the Total Access 3000/3010 64-pin Amp connectors shall meet the
following minimum characteristics:
•
Solid copper tinned wire.
•
Shielded cable with drain wire. Drain wire should be connected to pin 64,
unless this arrangement is pre-empted by customer specification.
•
Color coding to conform to industry standard blue/white through slate-violet
coding for pairs 1 through 25 with separate binder groups for pairs 1-25 and 26
through 28 or 32.
•
24 AWG or 22 AWG; 24 AWG preferred
•
28 or 32 pair; 28 pair preferred
•
100 Ohm nominal characteristic impedance;
±
15%
•
Mutual capacitance of 15.72 pF/ft nominal; 17.3 pF/ft absolute maximum,
•
Attenuation for DS1 signal @ 0.772 MHz (1.544 Mb/s) nominally 12.3 dB/1000
ft.
