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| PMC-Sierra,Inc. PM4314 QDSX and accumulates up to 8191 LCVs for performance monitoring purposes. * Detects both programmable in-band loopback activate and deactivate code sequences received in the DS1/E1 data stream. * Allows insertion of framed or unframed in-band loopback code sequences. * Supports transmission of the AIS. * Provides a 48-bit FIFO for jitter attenuation in each transmit path. FIFO full or empty indications allow for bitstuffing in higher rate multiplexing applications. * Provides up to 55 dB of jitter attenuation as per AT&T TR 62411. Quad T1/E1 Line Interface Unit FEATURES * Monolithic single-chip device that integrates four full-featured T1/E1 duplex DSX-1 compatible line interface circuits in a single device. * Supports B8ZS, HDB3, and AMI line codes. * Provides receive clock recovery and line performance monitoring. * Provides transmit jitter attenuation with programmable line build-out. * Directly interfaces to the PM4344 TQUAD Quad T1 Framer, PM6344 EQUAD Quad E1 Framer, PM4388 TOCTL Octal T1 Framer, PM6388 EOCTL Octal E1 Framer, PM8313 D3MX M13 Multiplexer, and PM7344 S/UNI-MPHTM Quad T1/E1 Multi-PHY SATURNTM ATM User Network Interface. * Software-compatible with the PM4341A T1XC Single T1 Transceiver, PM6341 E1XC Single E1 Transceiver, and PM4351 COMET Single T1/E1 Transceiver. * Provides an 8-bit microprocessor bus interface for configuration, control, and status monitoring. * Low power 5 V CMOS technology. * Available in a rectangular 128-pin 14 by 20 mm Plastic Quad Flat Pack (PQFP) package. * -40 to +85 industrial temperature operation. TRANSMIT SECTION * Optionally accepts dual-rail digital PCM inputs. Accepts gapped data streams to support higher rate demultiplexing. Supports unframed mode. * Optionally performs B8ZS or HDB3 encoding for single-rail PCM signals. * Generates DSX-1 compatible pulses with programmable pulse shape using only an external 1:1.36 turns ratio transformer. * Accommodates standard cable types such as ABAM, PIC, and Coax. * Selectable line length and line type for DS1 transmit pulse build-out. * Detects violations of the ANSI T1.403 12.5% pulse density rule over a moving 192 bit window. APPLICATIONS * T1 Channel Service Units (CSU) * T1/E1 Multiplexers and Digital Private Branch Exchanges (PBX) * Digital Access and Cross-Connect Systems (DACS) and Electronic DSX Cross-Connect Systems (EDSX) * T1/E1 Frame Relay Interfaces * T1/E1 ATM Interfaces * T1/E1 ATM Circuit Emulation Interfaces * SONET Add/Drop Multiplexers (ADM) * T1/E1 Test and Performance Monitoring Equipment BLOCK DIAGRAM QSTH QS7TA9rrpA hqA@A8r D789 DihqAGihpx 8qrA9rrp 7UDQVPLWWHU G8P9@ U99U9Qb#) d QSTB QS7T Brrh YD78 DihqA GihpxA8qrA Brrh 6HD7'aT C97" GvrA@pqr 9E6U 9vtvhyAEvrA 6rh YQGT 6hytAQyrA Brrh UYUDQb#) d U9Ib#) U8GFDb#) d d RECEIVE SECTION * Provides dual- or single-rail digital PCM outputs. * Supports reception of G.703 signals with up to 6 dB attenuation and reception of DSX-1 compatible signals using an external 1:2 turns ratio transformer and passive components. * Provides Loss Of Signal (LOS) and Alarm Indication Signal (AIS) alarm detection. Detects violations of the ANSI T1.403 12.5% pulse density rule over a moving 192 bit window. * Minimum sensitivity of 75 mV with a 1:2 turns ratio transformer allows for terminating or bridged performance monitoring applications. * Accommodates up to 0.4 UI peak-topeak, high frequency jitter as required by AT&T TR 62411. * Detects Line Code Violations (LCVs), PMC-941034 (R6) UYSDIBb#) d Y8GFW8GF STU7 6b')d 9b&)d XS7 S97 8T7 6G@ DIU7 YD78 S99S9Q T9Qb#) d 9E6U 9vtvhyAEvrA SG8WS9I T9Ib#) d 6rh Dihq Gihpx 8qr Brrh QSTB QS7T Brrh HQDA Hvppr Drshpr UPQT UvvtAPv U8b#) d 8GFP'Y 8GFP Y 5HFHLYHU 89S8 8ypx hqA9hhA Srpr SYUDQb#) STG8 6hytA QyrATyvpr S8b#) d SYSDIBb#) d d S8GFPb#) d D789 S9V6G U9V6G 98S Chqhr 8y Tvthy Dihq Gihpx 8qr 9rrp G8WfQHPI GvrA8qrA WvyhvA 8r USTU7 UHT U9D U8F U9P D@@@AQ #( QSTH QS7T 9rrpA hqA@A 8r EU6B UrA6ppr Q (c)A1998 PMC-Sierra, Inc. October, 1998 PM4314 QDSX Quad T1/E1 Line Interface Unit TYPICAL APPLICATIONS HIGH DENSITY HDLC APPLICATION 4 PM4314 4'6; PM4344 748$' Quad T1/E1 LIU Quad T1 Framer PM6344 (48$' (Fully Channelized PM4314 4'6; Quad E1 Framer PM7366 )5(('0ATM Processor 4 Frame Engine and Datalink Manager PM4388 72&7/ Quad T1/E1 LIU PM4314 4'6; Packet Memory 4 Octal T1 Framer PM6388 (2&7/ Quad T1/E1 LIU (Mixed Channelized and Unchannelized PCI Bus Octal E1 Framer T1 OR E1 MULTI-PHY ATM UNI 1.544 MHz Transmit Reference Clock DSX-1 or E1 Analog Interfaces PM4314 4'6; PM7344 681,03+ATM Quad T1/E1 LIU Quad T1/E1 Multi-PHY UserNetwork Interface UTOPIA or SCI-PHYTM Multi-PHY ATM Cell Bus Crystal Oscillator Clock 37.056 MHz Or 12.352 MHz Generic Microprocessor Bus Head Office: PMC-Sierra, Inc. #105 - 8555 Baxter Place Burnaby, B.C. V5A 4V7 Canada Tel: 604.415.6000 Fax: 604.415.6200 To order documentation, send email to: document@pmc-sierra.com or contact the head office, Attn: Document Coordinator All product documentation is available on our web site at: http://www.pmc-sierra.com For corporate information, send email to: info@pmc-sierra.com PMC-941034 (R6) (c) 1998 PMC-Sierra, Inc. October, 1998 FREEDM-8, SATURN, SCI-PHY, and S/UNI-MPH are trademarks of PMC-Sierra, Inc. |
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