1
Drive data up to
4 miles (6.4 km) at
2.4 kbps!
Supports speeds up to
115.2 kbps.
Versatile and
powerful.
External DTE/DCE and
flow control switches.
Screw-terminal and
RJ-11 connectors
included.
DB9-to-DB25 cable
and adapter included.
Lightweight and
compact.
Quick-connect power
supply.
B
reak the RS-232 distance
barrier with the Async Short-
Haul Modem-B Plus. Drive data
up to 4 miles (6.4 km)!
Perfect for a variety of
applications, including office,
industry, and data center, the
short-haul modem gives you
speed, versatility, and power.
The short-haul modem
supports speeds up to 115.2 kbps
for fast data transfer.
TD
RD
NORMAL
LOOPBACK
Break the RS-232 distance barrier—
drive data up to 4 miles (6.4 km)!
Key Features
ASYNC SHORT-HAUL MODEM-B PLUS
And it’s compact and easy to
install. You never have to open the
case, thanks to external DTE/DCE
and flow-control switches.
It works with your equipment’s
interfaces, too. Use either a
screw terminal or an RJ-11
connector to attach twisted-pair
cable to the short-haul modem.
And we’ve also included your
choice of serial-interface
connectors—either DB25 or
DB9—plus a DB9-to-DB25 cable
that you can use for either
interface with the included DB9-
to-DB25 adapter.
The short-haul modem comes
with a quick-connect 115-VAC
wallmount power supply for easy
power connections.
Typical distances over
24 AWG shielded twisted pair
are given in the chart on the next
page.
Black Box Corporation
• 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 724-746-5500 •
www.blackbox.com
•
e-mail: [email protected]
© 2004. All rights reserved.
Black Box Corporation.
11/8/2004
#21157
Maximum Distance:
4 miles (6.4 km)
Operation:
4-wire, full-duplex
Speed:
Up to 115.2 kbps
User Controls:
(1) Normal/Loopback
button
Interface:
RS-232
Connectors:
(1) DB25 female,
(1) RJ-11 female, (1) 4-screw
terminal block
Indicators:
(2) LEDs: (1) TD, (1) RD
Power:
115 VAC, 60 Hz ±10%
(wallmount), 5 watts
Size:
1.5"H x 5.2"W x 5.2"D (3.8 x
13.2 x 13.2 cm)
Specifications
• Async Short-Haul Modem-B
Plus
• (1) 6-ft. (1.8-m) DB9 female
to DB25 male cable
• (1) Adapter (serial) (DB9
male to DB25 female)
• User’s manual
What’s Included
