Single port T1/FT1 SNMP DSU/CSU provides an interface between T1 or Fractional T1 service and the customer's Data Terminal Equipment (DTE). The TSU ESP provides access to traditional dedicated point-to-point T1circuits as well as Frame Relay services. The TSU ESP supports synchronous data rates from... Read more

$755.00 - $755.00

The V.34 DBU Module provides switched backup of the leased line application. This module allows backup data rates of up to 33.6Kbps over the public switched telephone network (PSTN).??PRODUCT FEATURES:??Provides V.34 modem dial backup rates up to 33.6 Kbps via RJ-45 analog POTS line; ?Provides dial ... Read more

$349.00 - $393.00

Improve and lower the costs of Internet communications for both enterprise businesses and network service providers by attaching this 4-port ISDN module to your Atlas 550 Enterprise Integrated Access Device. ... Read more

$63.00 - $64.00

ADTRAN designs, develops and manufactures ADvanced TRANsmission products for high-speed digital communications. ADTRAN's commitment to total customer satisfaction requires continually developing and improving products to meet changing needs while maintaining the highest level of quality. That's why ... Read more

$193.00 - $196.00

The ADTRAN TSU LT is a low cost, full-featured T1/FT1 Data Service/ Channel Service Unit (DSU/CSU). The TSU LT provides an interface between T1 or Fractional T1 service and the end user's Data Terminal Equipment (DTE) for applications such as LAN to LAN bridging, Frame Relay circuit termination and ... Read more

$627.00 - $627.00