FEATURES
n SA2030 SA2030 PCM FRAME ALIGNER Frame Alignment Recovery and loss in accordance with CCITT recommendations G.732 and G.737 Jitter and phase-wander immunity exceed the requirements of CCITT recommendation G.823. Internal 1½ frame elastic buffer. Detection of incoming AlarmIndication-Signal (AIS), and Distant Alarm n Indication of Slip, loss of frame synchronisation, and loss of route clock conditions. ISO-CMOS Compatible. technology, TTL n n n n Pin-for-Pin replacement for Siemens PEB 2030 and SM 300 Microprocessor Interface n n APPLICATIONS
n Delay compensation and clock alignment between 2,048MHz PCM30 transmission lines, and terminating equipment. Control of Jitter and Wander within Digital Networks. n Delay compensation between switching stages. Interfacing of PCM systems operating with different clocks. PCM concentrators and subscriber multiplexers. n n n GENERAL DESCRIPTION
The internal 1½ frames elastic buffer provides for delay compensation and wander immunity. If the bounds of the buffer are exceeded, the SA2030 will either repeat or drop a frame.
