描述 Description

The DS2151Q is a first-generation line interface unit for T1 lines that that pioneered single-chip integration of multiple functions, combining long- and short-haul and framing functionality with dual elastic stores and an 8-bit parallel control port. It continues to provide an adaptable interface unit at both network and central office interfaces.
The DS2151Q meets T1 specifications, including ANSI T1 403-199X, AT&T TR 6241 (12-90), and ITU G.703, G.704 G.706, G.823, and 1.431. Under processor control, the user can access the 64 8-bit internal registers to configure the DS2152 to suit the application.

特性 Features

? Complete DS1/ISDN-PR1 transceiver
? Short- and long-haul trunk capability
? Independent send and receive functions
? 32-bit or 128-bit jitter attenuator
? DSX-1 and CXU line build-outs
? D4, ESF, and SLC-96R framing
? Dual onboard elastic buffers connect to backplanes up to 8.192MHz
? Programmable output clocks for Fractional T1
? 8-bit parallel control port can be muxed or nonmuxed
? Extracts/inserts robbed-bit signals
? Detects/generates yellow and blue alarms
? Onboard FDL support circuitry
? Generates/detects CSU loop codes
? ANSI one's density monitor/enforcer
? Path and line error counters, including BPV, CV, CRC6, and framing bit errors
? Pin-compatible with DS2153Q
? Operating ranges:
? 5.0V
? 0°C to +70°C (DS2151Q)
? -40°C to +85°C (DS2151QN)

簡介

DS2151Q屬于集成電路（IC）的電信。由制造生產(chǎn)的DS2151Q電信電信接口集成電路 (IC) 為通信網(wǎng)絡接口提供特定功能和控制，例如以太網(wǎng)切換、線路驅(qū)動器、ISDN、放大器、通道擴展器、數(shù)字鎖相環(huán)、DTMF、音頻發(fā)生器和解碼器、回聲消除、檢測器和發(fā)生器、DDA、電話線路監(jiān)控器和主叫號碼標識。