Model 72A

Features

DC TO 19.2 KBPS

Optically Isolated

TD & RD LED's

Loopback Switch

Built-In Surge Protection

Male or Female Connectors

Screw Terminals and RJ-11

Product Description

The Model 72A Optically Isolated Line Driver links RS-232 based devices over extended distances. It provides optical isolation and has built-in verification of operation using a loopback switch. The Model 72A communicates via 4-wire cable with another 72A, 72 or the rack mounted Model 75.

The Model 72A is designed for asynchronous operation over two twisted pair, non-loaded, metallic (DC continuity) cable up to 19.2 KBPS. Each modem is equipped with Transmit Data and Receive Data LED's to simplify installation and troubleshooting. Verification of modem operation is simplified using the built-in loopback switch. A second switch reverses pins 2 and 3 of the RS-232 connector for interfacing with either DCE or DTE devices. The Model 72A is available with male or female DB25 connectors. The 4-wire line termination includes 4 screw terminals and a modular phone jack.

Ordering Information

Model	Description	Price	Product Info
72AM	Optically Isolated Line Driver - Male Connector	$ 109	Specs - Manual - App Notes
72AF	Optically Isolated Line Driver - Female Connector	$ 109	Specs - Manual - App Notes
72AM-220	Optically Isolated Line Driver - Male Connector - 220 Volts	$ 114	Specs - Manual - App Notes
72AF-220	Optically Isolated Line Driver - Female Connector - 220 Volts	$ 114	Specs - Manual - App Notes

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Request Information

Bomara Associates Phone: 800.5BOMARA (800.526.6272) Phone: 978.452.2299 Fax: 978.452.1169 3 Courthouse Lane, Chelmsford, MA 01824 USA
email: bobr@bomara.com web: www.bomara.com