Introduction

The Agere Systems Inc. L9310 is a combination fullfeature, ultralow-power SLIC, solid-state ringing access relay, and line test matrix. It is part of a pinfor-pin compatible family of devices designed to serve a wide variety of applications. The L9310 is optimized for European Access applications and North American access where per-line testing and GR-909 longitudinal balance are required.

Features

SLIC

■ 5 V and battery operation

■ Optional automatic battery switch

■ 15 operational and test modes

■ Appropriate for 46 dB longitudinal balance applications

■ Minimal external components required at all interfaces

■ Ultralow power dissipation

■ Software/hardware adjustable dc parameters and supervision thresholds

■ Meter pulse compatible

■ Ground start/ground key compatible Solid-State Ring Relay

■ Low impulse noise

■ Current-limited switches/thermal protection

Line Test Matrix

■ Single-ended or differential measurements

■ Current or voltage sense

■ ac or dc measurements

■ Dedicated analog input and output

Applications

■ Pair Gain

■ Digital Loop Carrier (DLC)

■ Central Office (CO)

■ Fiber-in-the-Loop (FITL)