Total Access
®
3000/3010 System Manual
6TAAPP331-1E
TOTAL ACCESS 3000/3010
APP-331
Page 3 of 6
© 2002, ADTRAN, Inc.
1.1.4
Total Access Deployment Guidelines for HDSL
The ADTRAN Total Access 3000/3010 system is designed to deliver HDSL-based
services over loops that are in compliance with the Carrier Service Area (CSA)
guidelines listed below:
• All loops must be non-loaded.
• The maximum loop length, including bridged tap, for 26 AWG cable is 9 kft.
• The maximum loop length, including bridged tap, for 24 AWG cable is 12 kft.
• Any single bridge tap is limited to 2 kft.
• Total bridge tap is limited to 2.5 kft.
• The total length of multi-gauge cable containing 26 AWG cable must not exceed the
following:
12 – [(3*L
26
)/(9 – L
BTAP
)] (in kft.)
L
26
= Total length of 26 AWG cable excluding bridge taps (in kft.)
L
BTAP
= Total length of all bridge taps (in kft).
1.1.5
HDSL Loop Limits
In addition to conforming to CSA guidelines, some consideration may need to be
given to inside wiring to properly deploy the system. Some installations may require
drop and customer premises wiring to be included in the network configuration. HDSL
loop limits for different gauges of wire are displayed in
For more detailed information about CSA guidelines, refer to Telcordia Total
Access-NWT-1210.
If a loop does not meet CSA criteria for HDSL, it may still conform to general HDSL
guidelines. Use
to determine if the loop is within HDSL
guidelines for the following two criteria:
• Maximum dB loss is 35 @ 196 khz and 135 ohms
• Maximum DC ohms per loop is 800
NOTE
The following calculations must be calculated on each individual loop of the
circuit. For example, in a one-repeatered circuit, the calculations must be
performed on the loop between the office and the repeater, and on the loop
between the repeater and the customer.
