Adtran Atlas 800 Series Dual RS-449 Video Module 4200773L3 Power Supply The 4200754L4 provides a pair

The 4200754L4 provides a pair of EIA-232 serial ports

These Shoretel Handsets are refurbished replacements for your Shoretel phones that provide crystal clear quality calls

Auto-Rate and Auto-Duplex

The Adtran 4200305L1 can convert a T1 circuit of 23 bearer channels (B) + 1 data channel (D) into a PRI circuit of 24 bearer robbed bit signalling (rbs) channels and vice versa

Shoretel SG-120/24 Features:

Adtran Atlas 800 Series Dual RS-449 Video Module 4200773L3 Power Supply The 4200754L4 provides a pairAdtran Atlas 800 Series Dual RS 449 Video Module 4200773L3 Description: The Adtran Atlas 800 4200773L3 is a two port ISDN video module. The 4200773L3 provides two RS 449 synchronous serial ports. Each video port is independent and uses ISDN. The module supports DTE rates from 112k to 1. 472 Mbps when used with the Nx56 64 bonding module. The Adtran 4200773L3 is compatible with both the Atlas 830 gateway and the Atlas 890 gateway. Adtran 4200773L3