DESCRIPTION

The PM5365 VT/TU Mapper and M13 Multiplexer (TEMAP) is a feature-rich device for use in any applications requiring high density link termination over T1 channelized DS3 or T1 and E1 channelized SONET/SDH facilities.

FEATURES

• Integrates a SONET/SDH VT1.5/VT2/TU11/TU12 bit asynchronous mapper, a full featured M13 multiplexer with DS3 framer, and a SONET/SDH DS3 mapper in a single monolithic device for terminating DS3 multiplexed T1 streams, SONET/SDH mapped T1 streams or SONET/SDH mapped E1 streams.

• Five fundamental modes of operation:

• Single STS-1, AU3 or TUG3 Bit Asynchronous VT1.5 or TU-11 Mapper with ingress or egress per tributary link monitoring for 28 T1s.

• DS3 M13 Multiplexer with ingress or egress per link monitoring for 28 T1s.

• Up to 28 DS3 multiplexed T1 streams are mapped as bit asynchronous VT1.5 virtual tributaries or TU-11 tributary units, providing a transmultiplexing (“transmux”) function between DS3 and SONET/SDH with ingress or egress per tributary link monitoring for 28 T1s.

• Single STS-1, AU3 or TUG3 Bit Asynchronous VT2 or TU-12 Mapper with

ingress or egress per tributary link monitoring for 21 E1s or 21 T1s.

• Up to 21 E1 streams multiplexed into a DS3 following the ITU-T G.747 recommendation. This E1 mode of operation is restricted to using the serial clock and data system interfaces.

• Up to 28 VT1.5/TU11 or 21 VT2/TU12 tributaries can be passed between the line SONET/SDH bus and the SBI bus as transparent virtual tributaries with pointer processing.

• When adding and dropping T1 or E1 tributaries the mapper and demapper blocks allow for up to 28 VT1.5/TU11 or 21 VT2/TU12 tributaries to be processed from any tributary location within the full STS-3/STM-1. On the telecom DROP bus side this requires that the STS-3/STM-1 be in locked mode such that the J1 bytes immediately follow the C1 bytes.

• Supports a byte serial Scaleable Bandwidth Interconnect (SBI) bus interface for high density system side device interconnection of up to 84 T1 streams, 63 E1 streams or 3 DS3 streams. This interface also supports transparent virtual tributaries when used with the SONET/SDH mapper.

• Provides jitter attenuation in the T1 or E1 receive and transmit directions.

• Provides two independent de-jittered T1 or E1 recovered clocks for system timing and redundancy.

• Provides an on-board programmable binary sequence generator and detector for error testing at DS3 rates. Includes support for patterns recommended in ITU-T O.151.

• Also provides PRBS generators and detectors on each tributary for error testing at DS1, E1 and NxDS0 rates as recommended in ITU-T O.151 and O.152.

• Supports the M23 and C-bit parity DS3 formats.

• Standalone unchannelized DS3 framer mode for access to the entire DS3 payload.

• When configured to operate as a DS3 Framer, gapped transmit and receive clocks can be optionally generated for interface to link layer devices which only need access to payload data bits.

• DS3 Transmit clock source can be selected from either an external oscillator or from the receive side clock (loop-timed).

• Provides a SONET/SDH Add/Drop bus interface with integrated VT1.5, TU- 11, VT2 and TU-12 mapper for T1and E1 streams. Also provides a DS3 mapper.

• Register level compatibility with the PM8315 TEMUX, the PM4388 TOCTL Octal T1 Framer, the PM6388 EOCTL Octal E1 Framer, the PM4351 COMET E1/T1 transceiver and the PM8313 D3MX M13 Multiplexer/Demultiplexer.

• Provides a generic 8-bit microprocessor bus interface for configuration, control and status monitoring.

• Provides a standard 5 signal P1149.1 JTAG test port for boundary scan board test purposes.

• Low power 2.5V/3.3V CMOS technology. All pins are 5V tolerant.

• 324-pin fine pitch PBGA package (23mm x 23mm). Supports industrial temperature range (-40°C to 85°C) operation.

APPLICATIONS

• SONET/SDH Add Drop Multiplexers

• SONET/SDH Terminal Multiplexers

• M23 Based M13 Multiplexer

• C-Bit Parity Based M13 Multiplexer

• Channelized and Unchannelized DS3 Frame Relay Interfaces