DART Device
Advanced E3/DS3 Receiver/Transmitter
TXC-02030
DATA SHEET
FEATURES
DESCRIPTION
• Single LIU for E3 and DS3
The Dual-market Advanced E3/DS3 Receiver/Transmit-
ter (DART) device performs the receive and transmit line
interface functions required for transmission of E3
(34.368 Mbit/s) or DS3 (44.736 Mbit/s) signals across a
coaxial interface.
• Meets ‘cross-connect frame’ mask requirements
• Adaptive equalization for 0 - 900 ft of cable for
DS3, 0-1300 ft for E3
The DART operates from a single +5 volt supply with a
minimum number of external components. Performance
monitoring, loopbacks, E3/DS3 AIS generation, dejitter
FIFO, dejitter PLL, PRBS diagnostic circuits and HDB3/
B3ZS encoding/decoding functions are included.
A single-device solution for interfacing E3 or DS3 sig-
nals to DSX cross-connect frames, the DART meets all
applicable ANSI, BellCore and ITU-T interconnection
specifications for a wide range of system applications.
Specifications include, but are not limited to ANSI
T1.102-1993, ANSI T1.404-1994, GR-499-CORE, ITU-T
G.703, G.751, G.755, G.823, and ETSI TBR24.
• Input dynamic range of 30 dB (35 mVp - 1.1Vp)
• Meets E3/DS3 jitter requirement standards
• Optional HDB3 or B3ZS line encoding/decoding
• Line and terminal side E3 or DS3 AIS insertion
• Full loopback capabilities
• Coding violation and excessive zeros monitors
• Loss of signal detection (per T1/M1 Spec)
• On-device transmit line buffer/filter for DS3; E3
square-wave output
• Receive and transmit power-down modes
• Dejitter PLL/dejitter buffer using external VCXO
• Meets all relevant ANSI and ITU-T standards
• Single +5 volt, 5% power supply
APPLICATIONS
• Multiplexers
• E3/DSX and performance monitoring cross-connects
• Fiber optic and microwave radio terminals
• High speed DSU
• 80-pin low profile plastic quad flat package
• Any E3/DS3 transmission application
Dejitter PLL/Dejitter FIFO I/Os
LINE SIDE
TERMINAL SIDE
DART
Line Inputs
Terminal Outputs
Terminal Inputs
Advanced E3/DS3
Receiver/Transmitter
Line Outputs
Control Status/Performance
Inputs
Monitors
U.S. Patents No. 5,119,326; 5,323,423; 5,548,833
Copyright 2000 TranSwitch Corporation
Document Number:
DART is a trademark of TranSwitch Corporation
PRELIMINARY TXC-02030-MB
TranSwitch and TXC are registered trademarks of TranSwitch Corporation
Ed. 2A, April 2000
TranSwitch Corporation
3 Enterprise Drive
Shelton, Connecticut 06484
www.transwitch.com
USA
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Tel: 203-929-8810
Fax: 203-926-9453
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