Black Box RS-232 Line Driver short-haul modem (08/16/2003)

Content [Hide]

1. Manufacturer's description
2. Keywords

Manufacturer description

Driving data? Better check the transmission. Line drivers can operate in any of four transmission modes: 4-wire full-duplex, 2-wire full-duplex, 4-wire half-duplex, and 2-wire half-duplex. In fact, most models support more than one type of operation. So how do you know which line driver to use in your application? The deal with duplexing. First you must decide if you need half- or full-duplex transmission. In half-duplex transmission, voice or data signals are transmitted in only one direction at a time, as in a CB radio conversation. In full-duplex operation, voice or data signals are transmitted in both directions at the same time, as in a telephone conversation. The entire bandwidth is available for your transmission in half-duplex mode. In full-duplex mode, however, the bandwidth must be split in two because data travels in both directions simultaneously. Here's your long-distance solution: The 19.2-kbps RS-232 Line Driver provides clean, clear transmission up to 4 miles (6.4 km) at 19.2 kbps and an astounding 15 miles (24.1 km) at 1200 bps. And best of all, it achieves these distances over ordinary unconditioned phone lines! This line driver is versatile, too. It operates at both sync and async and half- and full-duplex. Select from eight selectable rates up to 19.2 kbps. Use it for both point-to-point and multipoint applications.

Keywords

me760a-r 2^me760 a-r 2^me 760a-r2^me 760a-r 2^me 760 a-r2^short-haul modem networking^rs-232 data link protocol^standalone   |  

About CNET Archive

Welcome to the CNET Archive, a library of product reviews, user opinions, videos, specifications, and manufacturer descriptions for products no longer offered by the manufacturer or most retailers. Here you will find information on replacement parts and replacement ink cartridges. Read what others had to say about that used laptop you are considering buying. Take a trip down memory lane as you browse and reminisce about your favorite old video game or that first digital camera.

Search Archive

Black Box RS-232 Line Driver short-haul modem specifications

• General
• Device Type Short-haul modem
• Enclosure Type External
• Networking
• Connectivity Technology Wired
• Cabling Type Serial
• Data Link Protocol RS-232
• Data Transfer Rate 19.2 Kbps
• Max Transfer Distance 15.0 miles
• Expansion / Connectivity
• Expansion Slot(s) None
• Interfaces 1.0 x Serial - RS-232 - 25 pin D-Sub (DB-25) Female X 5 , 1.0 x Network - Terminal block (screw)
• Compatible Slots None
• Miscellaneous
• Compliant Standards CE
• Power
• Voltage Required AC 120 V ( 60 Hz )
• Manufacturer Warranty
• Service & Support 1 year warranty
• Service & Support Details Limited warranty - 1 year