ADTRAN D4 FT1 DP User Manual

The ADTRAN FT1 DP occupies one physical channel unit of an AT&T

Network System (WECO

™

) D4. The ADTRAN FT1 DP works with the ADTRAN Fractional T1 Network Interface Device (FNID). Together the units support two-way fractional T1 transport at rates of 128, 256, 384, 512, 640, and 768 kbps over an existing CSA loop plant, without loop conditioning or service degradation. The technology used in the FT1 DP is High-bit-rate Digital Subscriber Line (HDSL). The HDSL transport complies with the specifications contained in Bellcore TA-NWT-0001210, FA-NWT-0001211, and ANSI T1E1 HDSL Technical Report - TR28.

The FT1 DP can span power the (FNID). In addition, the FT1 DP is capable of span powering a Fractional T1 repeater which can be used to double the deployment range of a circuit. The FT1 DP maintains all provisioning options of the FT1 circuit. These options are set either manually (through DIP switches) or through a craft access RS-232 interface (DB-9). The FT1 DP also provides extensive Operation, Administration, Maintenance, and Provisioning (OAM&P) information through faceplate features or the terminal interface.

HDSL local loop operation is independent of the channel bank chosen to deploy the FT1 DP units. The FT1 DP is the master in the master/slave relationship with the FNID. The FT1 DP provides span powering to the FNID, if required by the application. Additionally, the FT1 DP provisions and maintains the FT1 circuit. Provisionable options may be selected through manual switch selections and through a controlling terminal interface. Once selected, these options can be changed by either of these two methods; the FT1 DP remembers the last change implemented.

PRODUCT FEATURES

■ Repeaterless FT1 over Carrier

Service Area (CSA) loops

■ FT1 service rates of 128 to

768 kbps in increments of 128 kbps

■ 2B1Q modulation

■ Front panel LEDs to indicate

system status

■ Manual DIP switches at FT1 DP

as well as remote provisioning

■ Local or remote performance

monitoring capability

■ Loopbacks with DDS latching

loopback codes

■ Operation over extended

temperature ranges (standard –40° to +70°C)

■ Supports operation of Fractional

T1 Repeater

■ Standard 10 year warranty

D4 FT1 DP

FRACTIONAL T1 DATAPORT FOR AT&T D4 CHANNEL BANK

Product Specifications

PROVISIONABLE OPTIONS

■ Channel Selection (alternate or

contiguous)

■ Line Coding

■ Framing

■ Latching Loopback

■ DS1 Equalization

■ Loopback Timeout

■ Loopback “keep alive” setting

■ SNR Thresholds

■ Attenuation Thresholds

■ Error Threshold

■ Idle Code Detection

■ SLC-96 Mode of Operation

■ A/B Bit Signalling

FACEPLATE FEATURES

■

LEDs:

— Power Indication for HTU-C supply — Loop Synchronization and Signal Quality — Attenuation — Local and/or Remote Alarm Indication — Loopback Indication — Sealing Current (with or without Span

Powering) on Local Loop

— Self Test

■

Jacks:

— DS0 Break Out Jack — RS-232 Interface (DB-9)

■

Rotary Dial:

Used to select data rate

Ordering Information

EQUIPMENT PART #

D4 FT1 DP.............................................1242040L1

Specifications subject to change without notice.

CORPORATE OFFICE

901 Explorer Boulevard

Huntsville, AL 35806

800 9ADTRAN

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

61242.040L1-8C May 1998