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© Copyright 2013. Black Box Corporation. All rights reserve d.
Black Box and the Double Diamond logo are registered trademarks of
BB Technologies, Inc. Windows and Windows Vista are registered
trademarks of Microsoft Corporation. Any other trademarks mentioned
in this manual are acknowledged to be the property of the trademark
owners.
SP385A-R 2 version 1
Add an RS-232 port to your
USB-only PC.
(2) kV of isolation protects your PC
from hazardous ground loops.
USB to RS-232 Converter with Isolation
SP385A-R2
Black Box Tech
Support : FREE! Live.
24 / 7. Tech support
the way it should be.
Great tech support is just 30 seconds
away at 724-746-5500 or blackbox.com.
Order toll-free in the U.S.:
Call 877-877-BBOX
(outside U.S. call 1-724-746-5500)
FREE technical support
24 hours a day, 7 days a week:
Call 724-746-5500 or
fax 724-746-0746
Mailing address:
Black Box Corporation
1000 Park Drive
Lawrence, PA 15055-1018
Web site: www.blackbox.com
E-mail: info @blackbox.com
Customer
Support
Information
SP385A-R2 Quick Start Guide
• Transmit data. If the same character string is
returned, the test is good.
5. Pinout
RS-232 and T TL pinout ( DB9 male DTE).
Pin Signal Name RS-232 Signals TTL Signals
1 DCD (Data Carri er Detect) Input Not used
2 RD (Recei ve Data) Input Input
3 TD (Transmit Data ) Output Output
4 DTR (DTE Read y) Output Not used
5 SG (Signal Groun d) Ground Ground
6 DSR (DCE Ready ) Input Not used
7 RTS (Request to Send) Output Output
8 CTS (Clear to Se nd) Input Input
9 RI (Ring In dicator) Input Not used
IMPORTANT: Install the CD drivers before
connecting the hardware to the PC.
1. What’s Included
• USB to RS-232 Converter with Isolation
• 3.2-ft. (1-m) USB cable
• CD ROM with drivers
• This Quick Start Guide
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SP385A-R2 Quick Start Guide SP385A-R2 Quick Start GuideSP385A-R2 Quick Start Guide
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2. Specifications
Compatibilit y USB: 1.0 and 2.0 (full-speed)
Isolation Serial por t: 2 kV
MTBF 247,713 hours ;
MTBF calculation method: MIL 217F parts count
reliability
Operating
System
Windows XP ( 32-/6 4-bit),
Windows Vista (32-/ 64-bit),
Windows 7 (32- /64-bit) ,
Windows 8 (32- /64-bit) ,
Server 20 03 (32-/64-bi t),
Server 20 08 (32-/ 64-bit),
Server 20 08 R2 (6 4-bit)
Speed Serial port da ta rate: 460.8 kbps;
USB port speed: 12 Mbps (full)
Connectors (1) DB9 male, (1) USB Type B
Tem pera tur e Operating: 32 to 158° F (0 to 70° C) ;
Storage: -4 0 to +185° F (-40 to + 85° C)
Humidity Operating : 0 to 95%, non- condensing
Power Source: USB bus powere d;
Consumption: Low -power device (less than 100 mA)
Dimensions 1.7"H x 3"W x 0.9"D (4.3 x 7.7 x 2.3 cm)
Weight 6.4 oz. (0.18 kg)
2. Introduction
• One USB port is required for each installed device.
The USB port can be native to the PC or it can be a
USB port from an installed USB hub to the PC.
NOTE: The devices work with USB 1.1 or 2.0 ports,
but have a maximum USB data rate
of 12 Mbps.
• Surrounding Air Ambient Temperature: 32 to 158° F
(0 to 70° C).
3. Installation
• Insert the driver CD into your CD-ROM before
plugging the hardware into the PC.
• If you inserted the hardware first and the Found
New Hardware Wizard launched, click “Cancel” to
exit the wizard.
• After inserting the CD, the Black Box USB Driver
Installation wizard should launch automatically. The
following screen will appear for Windows 7 or 8.
A similar screen appears for other versions of
Windows.
If the installation wizard does not start automatically,
navigate to the CD-ROM drive. To find your CD-ROM
drive, double-click “Computer” or “My Computer” on
your desktop, then double-click on your CD-ROM
drive (usually D:). From the CD:
• On 32-bit Windows®, run D:\Windows\dpinst32.exe.
• On 64-bit Windows, run D:\Windows\dpinst64.exe.
• When the Black Box USB Driver Installation Wizard
appears, follow the wizard to complete the
installation.
• When the Black Box USB Driver Installation Wizard is
done installing the driver, use the included USB cable
to plug the USB hardware into an available USB port
on the PC.
4. Verify Installation
To verify that the installation was successful, open the
Windows Device Manager.
• Scroll down to Ports.
• Expand the ports by clicking on the plus sign (+).
This shows if the ports now exist on the PC.
• If there are no exclamation points or other indicators
of a problem, the ports should be installed correctly
and ready for use.
Verify with a loopback test.
• For RS-232, loopback pins 2 and 3. Use the pinout
chart for the location of each pin.
• Using Hyperterminal or a similar program, connect to
the appropriate COM port. Set the desired baud
rate. Make sure Hyperterminal local echo is OFF.
NOTE: Hyperterminal is not provided with Windows
Vista or 2003 Server.
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