ADTRAN 52000741D ISU 2X64 UINTERFACE RM

Description

The ADTRAN ISU 2×64 is a standalone ISDN Service Unit that connects data terminal equipment to the ISDN network. The ISU 2×64 is a dual port ISDN terminal adapter with an integrated NT1. The unit provides a cost-effective solution for the transfer of data and images over a single ISDN line.
The ISU 2×64 can be viewed as a dual modem that supports two applications, simultaneously and independently, up to 64 kbps on each DTE interface. For high-speed applications over 64 kbps, a single DTE interface can achieve rates up to 128 kbps. Target applications for the ISU 2×64 unit include video-conferencing and audio broadcasting at 128 kbps, as well as dual modem replacement.
The ISU 2×64 responds to loopback commands from the telephone company central office for network testing. An S/T interface version of the ISU 2×64 is also available for applications that do not require an internal NT1.
The ISU 2×64 features dual RS-530/EIA-232 DTE interfaces and dual RS-366 dial interfaces. An RS-530A/EIA-232-to- V.35 adapter is available to support V.35 DTE interfaces.
A single DTE interface supports synchronous data transfer rates from 2400 bps to 128 kbps and asynchronous rates from 1200 bps to 115.2 kbps. When using dual DTE interfaces, synchronous data transfer rates from 2400 bps to 64 kbps and asynchronous rates from 1200 bps to 57.6 kbps are supported. For speeds over 64 kbps using a single DTE interface, the industry standard Multilink PPP or BONDING delay equalization protocols aggregates the two 64 kbps B channels for a maximum of 128 kbps.