The ADTRAN DSU III AR™ is a technologically advanced, high performance data service unit/channel service unit (DSU/CSU). This unit provides a reliable interface between the digital data service (DDS) or 4-wire Switched 56 (SW56) network and the customer’s data terminal equipment
(DTE). The unit is an all-rate DSU/CSU supporting synchronous and asynchronous data rates on the primary channel and asynchronous data rates on the secondary channel. The synchronous primary channel rates supported are 2.4, 4.8, 9.6, 19.2, 38.4,56, and 64 Kbps. Asynchronous data rates
supported are 2.4, 4.8, 9.6, 19.2, 38.4 and 57.6 Kbps. Secondary channel data rates of 75, 150, 300, 600, 1200, and 2400 bps are offered depending upon the primary channel rate .
Features:
–Synchronous loop and DTE rate from 2.4 Kbps to 64 Kbps
–Asynchronous rate from 2.4 Kbps to 57.6 Kbps
–Asynchronous secondary DTE port operates at 75 bps to 2400 bps, depending on primary channel rate
–Automatic rate adaption
–Supports 4-wire Switched 56 capability for dial up applications
–Manual, DTR Dial, AT commands, V.25 bis, or stored number dialing
–Derives timing from internal oscillator, the network, or an external DTE device
–EIA-232 and V.35 DTE interfaces
–AC power
–DC version and Smart 16/16e rackmount version available
