描述 Description

The Mitel MH88437 Data Access Arrangement (D.A.A.) provides a complete interface between audio or data transmission equipment and a telephone line. All functions are integrated into a single thick film hybrid module which provides high voltage isolation, very high reliability and optimum circuit design, needing a minimum of external components.

特性 Features

? FAX and Modem interface (V.34/V.34+)

? Designed to work at data rates up to 56kbits

? External programmable line and network balance impedances

? Programmable DC termination characteristics

? IEC950 recognised component

? Transformerless 2-4 Wire conversion

? Integral Loop Switch

? Dial Pulse and DTMF operation

? Accommodates parallel phone detection

? Line state detection outputs:

-loop current/ringing voltage/line voltage

? +5V operation, low on-hook power (25mW)

? Full duplex voice and data transmission

? On-Hook reception from the line

? Meets French current limit requirements

? Conforms to German dial pulse standards

? Approvable to UL 1950

? Industrial Temperature Range Available

Applications

Interface to Central Office or PABX line for:

? FAX/Modem

? Electronic Point of Sale

? Security System

? Telemetry

? Set Top Boxes