

Adtran
Model# Multi Port DBU Module
Part# 1200089L2#HS
Provides a DTE to DCE interface. Allows an external device to provide automatic back-up of failed T1/FT1 circuit. Allows Data from multiple ports to be routed over back-up circuit. In TSU 600 it must be installed in slot 2. (HOT SWAPPABLE)
ADTRAN list price $545
Like all Adtran products the Multi Port DBU Module part # 1200089L2#HS carries a five year warranty.
1200089
Product information:
TSU Dial backup options data sheet
ADTRAN, Inc. - CPE - TSU Expansion Modules
ADTRAN, Inc. - CPE - TSU Expansion Modules
ADTRAN, Inc. Technical Support - TSU 600 FAQs
ADTRAN, Inc. Technical Support - TSU 600e FAQs