User's Manual

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CHAPTER 2: Introduction

Six models are available:

• DB9F/Term (IC620A-F)

• DB9M/Term (IC620A-M)

• DB9F/RJ-11 (IC623A-F)

• DB9M/RJ-11 (IC623A-M)

• DB9F/RJ-45 (IC624A-F)

• DB9F/RJ-45 (IC624A-M)

2.2 Features

• Operates asynchronously, point-to-point

or multipoint, over 2 or 4 wires.

• Up to 31 multipoint device drops in a polling

environment.

• Data rates up to 115.2 Kbps.

• Passes transmit and receive data, one control

signal in each direction.

• No AC power or batteries required.

• Variable high/low impedance settings.

• Able to operate with or without “echo.”

• Carrier can be set as “constantly on” or

“controlled by RTS.”