Black Box ME657A-M User Manual

1

Black Box Corporation • 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 724-746-5500 • www.blackbox.com • e-mail: [e-mail]

Speeds up to 38.4 kbps.

Distances up to 6 miles
(9.7 km).

Async or sync
operation, point-to­point or multipoint.

Transformer isolation
and surge protection.

O

perating asynchronously or

synchronously, the Multi­Function 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-

Multi-Function

Line Driver

Use this line driver in just about any

RS-232 UTP or STP application.

Key Features

MULTI-FUNCTION LINE DRIVER

5/9/2005 #13727

Ordering Information

ITEM CODE

Multi-Function Line Driver

DB25 Male, Terminal Block............................ME657A-M

DB25 Female, Terminal Block..........................ME657A-F

DB25 Female, RJ-45...........................................ME659A-F

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.

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-M:

(1) DB25 M, (1) terminal block;

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)

Specifications

© 2005. All rights reserved.

Black Box Corporation.