PM4344 Overview
PM4344 TQUAD ANSI specifications. Accumulators are provided for counting, ESF CRC-6 errors, Framing bit errors, Line Code Violations (LCVs), and Loss Of Frame (LOF) or change of frame alignment events. Extracts the data link in ESF, T1DM (DDS), or SLC®96 modes.
PM4344 Key Features
- Monolithic single-chip device that integrates four full-featured T1 framers and transmitters for terminating duplex DS1
- Supports SF, ESF, T1DM (DDS), and SLC®96 format DS1 signals
- Supports unframed mode. Supports B8ZS or AMI line codes
- Supports transfer of PCM and signalling data to/from 1.544 Mbit/s, 2.048 Mbit/s, 12.352 Mbit/s, or 16.384 Mbit/s backpla
- Supports n x DS0 backplane interface for fractional T1
- Provides robbed-bit signalling extraction/insertion, programmable idle and digital milliwatt code substitution, and two
- Provides trunk conditioning which forces programmable trouble code substitution and signalling conditioning on all/selec
- Provides ESF bit-oriented code detection/generation, and an HDLC interface for terminating/generating the ESF data link
- Software and functionally patible with the PM4341A T1XC Single T1 Transceiver. Pin-patible with the PM6344 EQUAD Quad E1
- Provides an 8-bit microprocessor bus interface for configuration, control, and status monitoring
PM4344 Applications
- Monolithic single-chip device that integrates four full-featured T1 framers and transmitters for terminating duplex DS1 signals
- Supports SF, ESF, T1DM (DDS), and SLC®96 format DS1 signals
- Supports unframed mode. Supports B8ZS or AMI line codes
- Supports transfer of PCM and signalling data to/from 1.544 Mbit/s, 2.048 Mbit/s, 12.352 Mbit/s, or 16.384 Mbit/s backplane buses
- Supports n x DS0 backplane interface for fractional T1
- Provides robbed-bit signalling extraction/insertion, programmable idle and digital milliwatt code substitution, and two superframes of signalling debounce on a
- Provides trunk conditioning which forces programmable trouble code substitution and signalling conditioning on all/selected channels
- Provides ESF bit-oriented code detection/generation, and an HDLC interface for terminating/generating the ESF data link
