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Enhance the capabilities of your ADTRAN Atlas 550 Router with the Adtran Atlas 550 Dual T1/PRI Module (Part Number: 1200314E2). This essential T1/PRI ..

Provides interfaces that are independently configurable for DS-1, DSX-1, or PRI operation Supports Drop/Insert and 1/0 Digital Cross-Connect (DACS) ap..

8-Port FXS Voice Interface CardProduct Type: Voice Interface Card (VIC) Application/Usage: Voice Interfaces/Ports: 8 x FXS Interfaces/Ports Details:..

The FXO modules provide eight foreign exchange office loop interfaces. Either of these modules should be selected when connecting voice line cards of ..

The ATLAS 550 FXS option modules provides eight 2-wire interfaces that can operate in the PLAR, Tandem (MEGACOM), or FXS mode and supports PBX circuit..

ATLAS 550 User Interface Module. Provides 4 ISDN U-Interfaces. Includes 4 RJ45-RJ11 cables (7 ft.). Can be used in any user interface module slot...

ATLAS 550 User Interface Module. Provides 4 ISDN S/T Interfaces for User Termination applications.Module emulates Net 3 EuroISDN (with SPIDs and SPIDl..

Provides four ISDN BRI U-Interfaces BRI ports can be independently configured to emulate or terminate ISDN circuits from an ISDN switch Compliant with..

Independently configurable for DS-1, DSX-1, or PRI operation, Supports Drop/Insert and 1/0 Digital Cross-Connect (DACS) applicationsProduct Name: AT..

Overview The Adtran Atlas 550 Quad T1/PRI Module (part number 1200755L1) is a high-performance interface card designed for the Atlas 550 series router..

Provides interfaces that are independently configurable for DS-1, DSX-1, or PRI operationSupports Drop/Insert and 1/0 Digital Cross-Connect (DACS)appl..