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DSU III S2W

2-WIRE SWITCHED 56 DSU/CSU

The ADTRAN DSU III S2W is a high-performance data service unit/channel service unit (DSU/CSU) based on Northern Telecom Datapath technology. The DSU III S2W incorporates advanced features utilizing microprocessor and VLSI technology in a standalone package. Using the Northern Telecom T-Link rate adaption protocol and time compression multiplexing (TCM), the DSU III S2W transports customer synchronous (up to 64 kbps) or asynchronous (up to 57.6 kbps) data over a 2-wire local loop to the network. Both EIA-232 and V.35 DTE interfaces are provided for all data rates.

The DSU III S2W supports manual (invoking a stored number or keypad) or automatic dialing. DTE interface dialing is supported by use of AT commands or V.25 bis in-band dialing. A separate DB-25 connector is provided for EIA-366 parallel dialing or out-of-band AT dialing.

The unit responds to standard loopback commands from the service provider and provides extensive test capabilities. Tests include DTE, DTE and loop, DTE with test pattern, and loop only.

The front panel of the standalone DSU III S2W contains a two-line by 16-character LCD display and seven LEDs. The front panel keypad operates a simple menu structure which accesses setup, selection of test modes, local configuration, and manual or automatic dialing from stored numbers. Configuration is also available by using the AT command set.

Features

Dialing by V.25 bis, EIA-366, enhanced AT command set, keypad or stored number
Compatible with Northern Telcom Datapath^TM
EIA-232 and V.35 DTE Interfaces
Auxiliary EIA-232 or EIA-366 dialing interface
Multiple tests and diagnostics
Synchronous and asynchronous features (including 38.4 and 57.6 kbps) DTE rates
T-Link rate adaption protocol
Auto answer of incoming calls
Standard 5-year warranty

DSU III S2W APPLICATION EXAMPLE

MAIN REAR PANEL

Product Specifications

OPERATING MODES

2-wire Switched 56 (SW56)

DTE RATES

DTE-to-loop rate matching in both switched and virtual private line mode
Synchronous rates: 1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 48, 56, and 64 kbps
Asynchronous rates: 1.2, 2.4, 4.8, 9.6, 19.2, 38.4 and 57.6 kbps

NETWORK INTERFACE

2-wire SW56 based on Northern Telecom Datapath technology

DTE INTERFACE

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

LINE INTERFACE

RJ-11

DIALING OPTIONS

EIA-366 or AT out-of-band
AT in-band dial commands
Front panel keypad (standalone unit only)
V.25 bis in-band (async, bi-sync, SDLC)
Switch stored number
Switch speed dial
DTR stored number (pulsed/constant)

DIAGNOSTICS

Local: DTE, DTE and loop, DTE with test pattern, loop only, test pattern
Remote: V.54 with 2047 and 511 test patterns or data from DTE

AGENCY APPROVALS

UL 1950, CSA
FCC Part 15, Class A

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

Weight

Standalone: 3 lbs

Power

115 VAC, 60 Hz, 8 watts

PRODUCT INCLUDES

6-pin to 6-pin modular cable and user manual

Datapath and T-Link are registered trademarks of Northern Telecom.

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.

Ordering Information

DSU III S2W - 1200015L2

Download this brochure in pdf format.
Request more information.

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