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P31003-H3550-S403-4-7620, 02/05
HiPath 3000 V5.0, HiPath 5000 V5.0, Service Manual
3-305
Boards for HiPath 3000
Peripheral Boards
3.3.41 TST1 (for U.S. only)
Introduction
The digital T1/PRI trunk module (TST1) connects the communications server to primary rate
interface (PRI) ISDN via a T1 interface.
There are two versions of this board:
● S30810-Q2919-X - for use in the HiPath 3550 (wall housing)
● S30810-K2919-Z - for use in the HiPath 3500 (19-inch housing)
The board can also be used for the following layer-1 operating modes:
● Super Frame SF
● Extended Super Frame ESF
Board usage is subject to the following restrictions:
● Only one TST1 board allowed (primary multiplex access)
● For slot 7 or 9 only
Rather than connecting to a main distribution frame (MDF), the TST1 connects to a channel
service unit (CSU). The CSU supplies the required secondary protection.
Interfaces
Figure 3-127 TST1 (For U.S. Only) (S30810-Q2919-X/S30810-K2919-Z)
X1
50
1
To
CUC
CUCR
TST1
To CO
X2
1
8
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