[Home][Adtran][Cisco][Eastern Research][GDC][Kentrox][Micom][Motorola][Multi-Tech][Nortel][RAD][Verso][Visual Networks]

DSU III AR

ALL-RATE DSU/CSU

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 are provided from 2.4 to 19.2 kbps, 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.

The DTE interface can be selected as either EIA-232 or V.35 for all data rates. The secondary channel interface is EIA-232 and is accessed through a separate connector.

Additional features of the DSU III AR include a DTE-to-service rate matching feature for both dedicated and switched modes, as well as various anti-streaming time-out values, to disable streaming terminals on a multi-point circuit. Private networks and modem tail circuits are accommodated through clocking/timing options.

In the 4-wire SW56 mode, dialing options include manual dialing, redialing, and dialing of stored numbers. Dialing over the DTE interface is supported by use of an AT command set or the V.25 bis in-band dialing protocol.

The unit responds to standard loopback commands from the telephone company central office. In addition, the user has several built-in test capabilities. These include V.54 remote loopback, 2047 and 511 BERT test patterns, and four DDS stress patterns (results of which are displayed on a two-line by 16-character LCD display and seven LEDs). The standalone unit's front panel keypad supports setup, selection of test modes, local and remote configuration, manual dialing, or automatic dialing from stored numbers.

The rackmount unit is configured using the Smart 16/16e shelf controller card. The card is attached to a local or remote VT 100 terminal or to the ADTRAN DATAMATE. The DSU III AR can also be configured using AT or V.25 bis commands.

Features

	Support for rates from 2.4 to 64 kbps including newer 19.2 and 38.4 rates
	Standalone or Smart 16/16e shelf rackmount versions
	Compatible with DDS secondary channel services; provides asynchronous secondary channel rates of 75 bps to 2.4 kbps
	Local and remote configuration (AT, front panel, V.25 bis)
	Synchronous or asynchronous (including 57.6 kbps) primary channel modes of operation
	Both EIA-232 and V.35 primary channel DTE interfaces
	DTE-to-service rate matching feature allows slower DTE devices to communicate over higher speed service offerings
	Manual, automatic, AT commands, V.25 bis, or stored number dialing capabilities
	Auto answer of incoming calls
	Standard 5-year warranty

DSU III AR APPLICATION EXAMPLE

DSU III AR REAR PANEL

Product Specifications

OPERATING MODES

	Dedicated DDS (point-to-point, multi-point)
	Switched 56 (4-Wire)

NETWORK DATA RATES

	Dedicated mode service rates: 2.4, 4.8, 9.6, 19.2, 38.4, 56 and 64 kbps.
	Switched mode service rate: 56 kbps

DTE RATES

	DTE rates match service rates
	DTE-to-loop rate matching in both dedicated and switched modes
	Synchronous rates: 2.4, 4.8, 9.6, 19.2, 38.4, 56, and 64 kbps
	Asynchronous rates: 2.4, 4.8, 9.6, 19.2, 38.4, and 57.6 kbps

DTE INTERFACES

Both EIA-232 and V.35 electrical and physical DTE interfaces

SWITCHED MODE DIALING OPTIONS

	Stored number
	Front panel keypad (standalone only)
	DTR dialing of stored number
	In-band AT commands
	V.25 bis in-band dialing

DATA BUFFERING

Internal slack buffer

CLOCKING

	Normal DDS or private network tributary (slaved to network receive clock)
	Private network master (internal)
	Normal DDS with tail circuit
	Private network master (slaved to external clock)

DIAGNOSTICS

	Network: CSU and DSU loopbacks
	User: Local DTE and network, remote V.54
	Test patterns: 2047, 511, DDS stress patterns 1-4

RECEIVER SENSITIVITY

-45 dB at all rates

AGENCY APPROVALS

	FCC Part 15, Class A and Part 68
	Industry Canada CS03, UL and CUL

ENVIRONMENT

	Operating: 0� C to 50� C (32� F to 122� F)
	Storage: -20� C to 70� C (-4� F to 158� F)
	Relative humidity: Up to 95%, non-condensing

PHYSICAL

Dimensions

Standalone: 2.25" H, 8.75" W, 10.25" D Rackmount: 1.00" H, 6.75" W, 10.50" D

Weight

Standalone: 3 lbs Rackmount: 1.5 lbs

Power

115 VAC, 60 Hz, 8 watts

Product Includes: 8-pin to 8-pin modular cable and user manual

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.

Ordering Information

	DSU III AR standalone - 1202011L1
	DSU III AR rackmount - 1200034L1

Download this brochure in pdf format.

Immediate price quote - Call 727-398-5252

Specials E-mail us Bookmark this site More Adtran Important Notices

ADTRAN and the ADTRAN logo are registered trademarks of ADTRAN, Inc.
E-mail: Webmaster about the Adtran portion of this site.
Last modified: June 05, 2008