FEATURES
• Monolithic single chip device which integrates a full-featured E1 framer with on-chip analog line interface.
• Provides frame synchronization and frame generation for a G.704/G.706 2.048 Mbit/s signal with capability to support the optional signalling and CRC multiframes.
• Supports HDB3 or AMI line coding and accepts gapped data streams to support higher rate demultiplexing.
• Supports both 75 Ohm and 120 Ohm G.703 line interfaces.
• Provides Channel Associated Signalling extraction/insertion, programmable idle code substitution, digital milliwatt code substitution, data inversion and up to 3 multiframes of signalling debounce on a per channel basis.
• Optionally extracts/inserts the datalink from/to timeslot 16 to receive/transmit Common Channel Signalling.
• Pin compatible with the PM4341A T1XC T1 Transceiver.
• Software compatible with the PM6344 EQUAD E1 Framer, and PM6388 EOCTL E1 Framer.
• Provides an 8-bit microprocessor bus interface for configuration, control and status monitoring.
• Low-power 5V CMOS technology.
• Available in a high density 80-pin (14 by 14mm) PQFP or in a 68-pin PLCC package.

APPLICATIONS
• E1 & E3 Multiplexers
• Digital Loop Carriers
• E1 Frame Relay Interfaces
• E1 ATM UNI Interfaces
• E1 Channel Service Units (CSUs) and Data Service Units (DSUs)
• Digital Access and Cross-Connect Systems (DACS) and Electronic Digital Cross-Connect Systems (EDSX)
• SDH Add/Drop Multiplexers (ADM)
• ISDN Primary Rate Interfaces (PRI)
• Digital Private Branch Exchanges (PBX)
• E1 & E3 Test Equipment