Figure 20. Isdn Practical Arrangement - ADTRAN Total Access 3000 System Manual

6TASYS101-1E
TOTAL ACCESS 3000/3010
SYS-101
Page 40 of 46
The system has reduced the size of a complete ISDN T1 multiplexer to a single HD-10
card that fits into two slots of Total Access 3000/3010. This provides telcos with the
capability of deploying ten ISDN circuits from a double-wide card, or a total of 140/
110 circuits from a Total Access shelf fully populated with HD-10 ISDN access
modules. See Figure 20.
ISDN
Switch
Total Access
with HD-10
Central Office (CO)
The HD-10 ISDN Access Module is a full-featured card that provides the most
economical way to deliver Basic Rate ISDN services over a T1 carrier system, while
making the most efficient use of space. The HD-10 supports the conventional three-
DS0 deployment of eight BRI services over a T1, and then adds D channel
multiplexing to support ten 2B+D services over the same T1 (a 25 percent increase).
© 2003, ADTRAN, Inc.
Remote Terminal (RT)
Total Access
with HD-10
DS3

Figure 20. ISDN Practical Arrangement

140/110 BRI to
the customer
10 BRI lines
from each
HD-10 card
Total Access ® 3000/3010 System Manual
Customer