Black Box ME657A-M - Manual
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1
Black Box Corporation
• 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 724-746-5500 •
www.blackbox.com
•
e-mail: [email protected]
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.
O
perating 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-
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.
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