Adtran Atlas 550 4200305L3 Inverse Multiplexer 4 T1 HSSI/V.35 Accessories and can plug onto any

and can plug onto any user module or resource host module

Provides Channelized 23D+1B Connection

10 Programmable Buttons

The Quad ISDN BRI U module supports AT&T 5ESS

Display: Two lines x 24 characters

Adtran Atlas 550 4200305L3 Inverse Multiplexer 4 T1 HSSI/V.35 Accessories and can plug onto anyAdtran Atlas 550 4 T1 HSSI V. 35 Inverse Multiplexer 4200305L3 Description: The Adtran Atlas 550 Inverse Multiplexer (4200305L3) takes a HSSI interface and converts it back to 4 T1 interfaces. This multiplexer has been designed to provide stable multiplexing support in point to point applications. Please note this chassis supports point to point applications only. T1 ports on the NxT1 HSSI V. 35 Module can only be used to direct bandwidth to the HSSI