Adtran Atlas 550 Quad FXO Module 1200329L1 Gateways The SG-120 features two RJ-45

The SG-120 features two RJ-45 Ethernet connections

8 GHz ISM band

the ShoreTel 565G features six line appearances

The 1205288L2 is a redundant controller card that can fit in either slot 1 or 2 of the multiplexer

3Com VCX V7122 Features:

Adtran Atlas 550 Quad FXO Module 1200329L1 Gateways The SG-120 features two RJ-45Adtran Atlas 550 Quad FXO Module 1200329L1 product information. The Adtran 1200339L1 provides 4 FXO analog 2 wire RJ 45 interfaces. These interfaces support loop start, ground start, and DPT options for establishing the circuit. Each FXO port can be mapped to individual DS0 circuits or dynamically switched based on a dial plan. The Adtran 1200329L1 is compatible with Adtran Atlas 550 gateways. Adtran 1200339L1 Features: Provides 4 FXO Trunk Interfaces