Adtran Atlas 550 Dual T1 PRI Module 1200314E2 Routers The 1200221L1 supports fax detection

The 1200221L1 supports fax detection to prevent fax messages from being compressed with G

The 3Com 3300G-El provides 24 wirespeed ports at Gigabit speeds

The 1200218L1 can support up to 44

Adtran T3SU 300 T3 Quad DSX-1 Interface Module 1200284L1 Description:

Adtran Atlas 550 Dual T1 PRI Module 1200314E2 Routers The 1200221L1 supports fax detectionAdtran Atlas 550 Dual T1 PRI Module 1200314E2 Description: The Adtran 1200314E2 is a dual port T1 card for the Adtran Atlas 550. This module allows for a pair of ports that can be configured independently as a PRI or T1 circuit. The module supports drop insert and digital access cross connect systems (DACS) applications. Numerous configurations such as frame relay emulation and passthrough and PRI switching are supported with the Adtran 1200314E2