ADTRAN Total Access 3000 - Page 47

6TASYS101-1E
TOTAL ACCESS 3000/3010
SYS-101
Page 41 of 46
Total Access
®
3000/3010 System Manual
© 2003, ADTRAN, Inc.
Figure 21. Total Access 3000 HD-10/ISDN Versatility
Total Access 3000/3010
BR1/8
BR1/10
ACT 2300
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HD-10
BRI MUX
1250110L1
HD-10
Standalone
The HD-10 can tolerate a maximum of three bridge taps, up to a total of 6,000 feet on
each circuit, with no one bridge tap exceeding 2,000 feet. The HD-10 occupies two
slots in the Total Access 3000/3010 shelf, allowing 14/11 cards per system, or 140/110
BRIs. See Figure 21.
Service deployment requires installation of only two components. An ISDN card (HD-
10) is installed in Total Access 3000/3010 at a CO, a controlled environmental vault,
or a fiber hut. The far end of the DLC is then terminated with another device with a
standard U-BR1TE, which could include another HD-10, an HD-10 standalone, a BR1/
10, BR1/8, or an ACT 2300 standard D4 channel bank.
Total Access 3000/3010 can provide ISDN service to a non-ISDN CO by backhauling
from the ISDN switch at the CO in an interoffice scenario. By minimizing the
bandwidth required on the backbone, a non-ISDN CO can provide Basic Rate ISDN
service for up to 140/110 customers.
The HD-10 ISDN Access Module is fully compatible with all current and previous
generations of ADTRAN D4 U-BR1TEs, including all OEM U-BR1TE products, in
the 8-DSL mode, D4 terminal mode with D4 counting. In 10-DSL mode, it will
interoperate with the ADTRAN BR1/10 4:1 TDM mode.
ADTRAN ISDN products comply with the applicable sections of ANSI T1.601, TR-
NWT-000397, and TR-TSY-000829 for ISDN range extension.