XRT86VL30：T1/E1/J1 Bits Clock Recovery Element and Framer and Line Interface Combination featuring R³ Technology™

The XRT86VL30 is a single channel T1/E1/J1 BITS clock recovery element and framer and LIU integrated solution featuring R3 technology (Relayless, Reconfigurable, Redundancy). The physical interface is optimized with internal impedance, and with the patented pad structure, the XRT86VL30 provides protection from power failures and hot swapping.

The XRT86VL30 contains an integrated DS1/E1/J1 framer and LIU which provides DS1/E1/J1 framing and error accumulation in accordance with ANSI/ITU_T specifications. The framer has its own framing synchronizer and transmit-receive slip buffers. The slip buffers can be independently enabled or disabled as required and can be configured to frame to the common DS1/E1/J1 signal formats.

The Framer block contains its own Transmit and Receive T1/E1/J1 Framing function. There are 3 Transmit HDLC controllers which encapsulate contents of the Transmit HDLC buffers into LAPD Message frames. There are 3 Receive HDLC controllers which extract the payload content of Receive LAPD Message frames from the incoming T1/E1/J1 data stream and write the contents into the Receive HDLC buffers. The framer also contains a Transmit and Overhead Data Input port, which permits Data Link Terminal Equipment direct access to the outbound T1/E1/J1 frames. Likewise, a Receive Overhead output data port permits Data Link Terminal Equipment direct access to the Data Link bits of the inbound T1/E1/J1 frames.

The XRT86VL30 fully meets all of the latest T1/E1/J1 specifications: ANSI T1.101-1999, ANSI T1/E1.107-1988, ANSI T1/E1.403-1995, ANSI T1/E1.231-1993, ANSI T1/E1.408-1990, AT&T TR 62411 (12-90) TR54016, and ITU G-703 (Including Section 13 - Synchronization), G.704, G706 and G.733, AT&T Pub. 43801, and ETS 300 011, 300 233, JT G.703, JT G.704, JT G706, I.431. Extensive test and diagnostic functions include Loop-backs, Boundary scan, Pseudo Random bit sequence (PRBS) test pattern generation, Performance Monitor, Bit Error Rate (BER) meter, forced error insertion, and LAPD unchannelized data payload processing according to ITU-T standard Q.921.

技术特性

Supports Section 13 - Synchronization Interface in ITU G.703 for both Transmit and Receive Paths
Supports SSM Synchronous Messaging Generation (BOC for T1, National Bits for E1) on the Transmit Path
Supports SSM Synchronous Messaging Extraction (BOC for T1, National Bits for E1) on the Receive Path
Supports BITS timing generation on the Transmit Outputs
Supports BITS timing extraction from NRZ data on the Analog Receive Path
Parallel or SPI Microcontroller Interface
Independent, full duplex DS1 Tx and Rx Framer/LIUs
Two 512-bit (two-frame) elastic store, PCM frame slip buffers (FIFO) on TX and Rx provide up to 8.192 MHz asynchronous back plane connections with jitter and wander attenuation
Supports input PCM and signaling data at 1.544, 2.048, 4.096 and 8.192 Mbits. Also supports 2-channel multiplexed 12.352/16.384 (HMVIP/H.100) Mbit/s on the back plane bus
Programmable output clocks for Fractional T1/E1/J1
Supports Channel Associated Signaling (CAS)
Supports Common Channel Signalling (CCS)
Supports ISDN Primary Rate Interface (ISDN PRI) signaling
Extracts and inserts robbed bit signaling (RBS)
3 Integrated HDLC controllers for transmit and receive, each controller having two 96-byte buffers (buffer 0 / buffer 1)
HDLC Controllers Support SS7
Timeslot assignable HDLC
V5.1 or V5.2 Interface
Automatic Performance Report Generation (PMON Status) can be inserted into the transmit LAPD interface every 1 second or for a single transmission
Supports SPRM and NPRM
Alarm Indication Signal with Customer Installation signature (AIS-CI)
Remote Alarm Indication with Customer Installation (RAI-CI)
Gapped Clock interface mode for Transmit and Receive.
Intel/Motorola, Power PC, or SPI interfaces for configuration, control and status monitoring
Parallel search algorithm for fast frame synchronization
Wide choice of T1 framing structures: SF/D4, ESF, SLC®96, T1DM and N-Frame (non-signaling)
Direct access to D and E channels for fast transmission of data link information
Full BERT Controller for generation and detection on system and line side of the chip.
PRBS, QRSS, and Network Loop Code generation and detection
Three Independent, simultaneous Loop Code Detectors per Channel
Programmable Interrupt output pin
Supports programmed I/O and DMA modes of Read-Write access
The framer block encodes and decodes the T1/E1/J1 Frame serial data
Detects and forces Red (SAI), Yellow (RAI) and Blue (AIS) Alarms
Detects OOF, LOF, LOS errors and COFA conditions
Loopbacks: Local (LLB) and Line remote (LB)
Facilitates Inverse Multiplexing for ATM
Performance monitor with one second polling
Boundary scan (IEEE 1149.1) JTAG test port
Accepts external 8kHz Sync reference
1.8V Inner Core
3.3V CMOS operation with 5V tolerant inputs
80-pin LQFP and 128-pin LQFP package options with -40°C to +85°C operation
Pb-Free, RoHS Compliant Versions Offered

数据手册S

应用指南

说明书

Evaluation System User Manual

电路图

Product Flyer

Product Change Notification

产品应用

BITS Timing
High-Density T1/E1/J1 interfaces for Multiplexers, Switches, LAN Routers and Digital Modems
SONET/SDH terminal or Add/Drop multiplexers (ADMs)
T1/E1/J1 add/drop multiplexers (MUX)
Channel Service Units (CSUs): T1/E1/J1 and Fractional T1/E1/J1
Digital Access Cross-connect System (DACs)
Digital Cross-connect Systems (DCS)
Frame Relay Switches and Access Devices (FRADS)
ISDN Primary Rate Interfaces (PRA)
PBXs and PCM channel bank
T3 channelized access concentrators and M13 MUX
Wireless base stations
ATM equipment with integrated DS1 interfaces
Multichannel DS1 Test Equipment
T1/E1/J1 Performance Monitoring
Voice over packet gateways
Routers

规格	参数
频道数量	1
数据传输速率(s)	T1/E1/J1
Clk Rec	Yes
短途/长途	S/L
温度.范围	Ind.
Op Pwr Sup/ Max Cur	3.3V +/-5%
封装	TQFP-128 TQFP-80
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