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All rights reserved. Black Box Corporation. Multi-Function Line Driver Use this line driver in just about any RS-232 UTP or STP application. 12/14/2010 #13727 FREE 24-hour Tech Support: 72Ф746-5500 blackbox.com 1 of 2 FEATURES » Speeds up to 38.4 kbps. » Distances up to 6 miles (9.7 km). » Async or sync operation, point-to-point or multipoint. » Transformer isolation and surge protection. OVERVIEW Operating asynchronously or synchronously, the Multi-Function Line Driver supports data rates up to 38.4 kbps and distances up to 6 miles (9.7 km). The line driver will operate over 4 wires in point-to-point or multipoint environments. In synchronous mode, the Multi-Function Line Driver supports internal, external, or receive loopback clocking. Two V.54 and two V.52 BER test modes can be activated via the RS-232 interface. Built-in LEDs let you monitor test mode operation. With transformer isolation and surge protection, your data is safe. The Multi-Function Line Driver is designed to plug directly into the RS-232 interface. Twisted-pair wire is connected using an RJ-45 connector or terminal blocks with strain relief. TECH SPECS Clocking — Internal, external, receive Distance (Maximum) — 6 mi. (9.7 km) Speed (Maximum) — 38.4 kbps Line Type — (2) twisted pair Operation — 4-wire, full duplex, point-to-point, or multipoint Protocol — Asynchronous or synchronous Interface — RS-232 (DCE) Connectors — ME657A-F: (1) DB25 F, (1) terminal block; ME659A-F: (1) DB25 F, (1) RJ-45 Indicators — BERT, Loop Power — 6 VDC from the interface, Pins 4, 9, 20 Size — 0.8" H x 2.1 "W x 3"D (2 x 5.3 x 7.6 cm) Weight — 0.1 lb. (<0.1 kg) Item Code Multi-Function Line Driver DB25 Male, Terminal Block ME657A-M DB25 Female, Terminal Block ME657A-F DB25 Female, RJ-45 ME659A-F Why Buy From Black Box? Exceptional Value. Exceptional Tech Support. Period. Recognize any of these situations? • You wait more than 30 minutes to get through to a vendor's tech support. • The so-called "tech" can't help you or gives you the wrong answer. • You don't have a purchase order number and the tech refuses to help you. • It's 9 p.m. and you need help, but your vendor's tech support line is closed. According to a survey by Data Communications magazine, 90% of network managers surveyed say that getting the technical support they need is extremely important when choosing a vendor. But even though network managers pay anywhere from 10 to 20% of their overall purchase price for a basic service and support contract, the technical support and service they receive falls far short of their expectations—and certainly isn't worth what they paid. At Black Box, we guarantee the best value and the best support. You can even consult our Technical Support Experts before you buy if you need help selecting just the right component for your application. Don't waste time and money—call Black Box today. blackbox.com I* 2 of 2...