Ordering Information - ADTRAN Fractional T1 Tandem Channel Unit FT1-TDM Specifications

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
61242.052L1-8A 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
FT1-TDM ...............................................1242052L1
Specifications subject to change without notice.
PART #