TXC-20153D

• Complete B3ZS analog to NRZ digital DS3/ STS-1 line interface unit in a compact 2.6 square inch, 50-pin DIP Module
• Single +5V power supply
• Analog inputs and outputs are transformer coupled
• Meets DSX cross connect frame mask requirements (ANSI Standard T1.102-1993)
• Adaptive equalization for zero to 900 feet of cable
• Input dynamic range of 20 dB (100mV - 0.95V)
• Meets DS3/STS-1 jitter requirements of Bellcore Technical References
• Full loopback capability
• Coding violation and loss of signal detection for received signal
• TXC-20153D has monitor pin for received signal input. TXC-20153G has pull-up for external clock input and improved performance margins.
• Speeds time to market for prototype development
• Eases parts inventory and acquisition
• Eases field maintenance

Notes:
1. Conditions exceeding the Min or Max values may cause permanent failure. Exposure to conditions near the Min or Max values for extended periods may impair device reliability.
2. Pre-assembly storage in non-drypack conditions is not recommended. Please refer to the instructions on the "CAUTION" label on the drypack bag in which the Modules are supplied.

The DS3/STS-1 Line Interface Module (DS3LIM-SN) is a complete and compact full duplex analog line to digital terminal interface. DS3/STS-1 converts B3ZS-encoded line signals, in either DS3 asynchronous or STS-1 synchronous format, to and from NRZ data and clock signals. In addition to the synchronous signal option, this Module offers other improvements relative to the TranSwitch DS3 Line Interface Module (DS3LIM, TXC-20049D), which it can replace in some existing DS3 applications.

Sensitive analog circuitry meets DS3/STS-1 performance requirements for signal recovery and transmission, with direct line connection via on-board transformers. Integration of functions into a single Module frees the user from complex printed circuit board design and testing for the DS3/STS-1 analog section, reducing the time required for applications development and product introduction.