Corporate Office, Regional Offices, Clock Sources

CORPORATE OFFICE

901 Explorer Boulevard Huntsville, AL 35806

8009ADTRAN Local: 256 963-8000 Fax: 256 963-8699

Fax Back: 256 963-8200 http://www.adtran.com email: info@adtran.com

TELCO TECHNICAL SUPPORT

800 726-8663

REGIONAL OFFICES

Irvine, CA 800 788-5408

Denver, CO 800 471-8651

Atlanta, GA 800 332-6945

Kansas City, KS

800 471-8649

Philadelphia, PA

800 471-8656

Dallas, TX 800 471-8648

Canada 800 232-6811

ADTRAN is an ISO 9001 registered company.

Printed in U.S.A. on recycled paper 61242.052L1-8A May 1998 ©ADTRAN, Inc. 1998

Product Specifications

DSX-1 INTERFACE

■Interface Type: 4-wire (Tx pair and Rx pair)

■Operating Mode: Full Duplex

■Maximum Data Rate: 768 kbps (12 channels x 64 kbps)

■Line Equalization: 0-655 feet

■Line Code: AMI, B8ZS

■Framing: D4 ESF

■Line Impedance: 100Ω

CHANNEL BANK FACILITY INTERFACE

■Fully compatible with D4 channel bank equipment

CLOCK SOURCES

■Derived from channel bank

DIAGNOSTICS

■Self Test

■Near Loopback

■Far Loopback

ENVIRONMENT

■Operating (standard): –40° to +70°C

■Storage: –40° to +85°C

■Relative Humidity: Up to 95% non-condensing

PHYSICAL CHARACTERISTICS

■Dimensions: 4.4" H, 1.4" W, 10" D

■Weight: 8 ounces, nominal

■Plugs into AT&T D4, SLC-96, or ADTRAN ACT 1241 customer premises bank

■Power: 5 Volts: 100µ max

■–48 Volts: 40 mA max

■Total Power: 2.0 W max

FACEPLATE INDICATORS

■The FT1-TDM has four faceplate LEDs which indicate operational status

FACEPLATE SWITCHES

■Two DIP switches are located on the FT1-TDM faceplate. Use these to activate and deactivate far end loopback and near end loopback. Use the twelve-position rotary switch to select the number of channels to be used.

Ordering Information

EQUIPMENT	PART #
FT1-TDM	1242052L1

Specifications subject to change without notice.