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STEP X - 

Name of Step

24/7 TECHNICAL SUPPORT AT 877.877.2269 OR VISIT BLACKBOX.COM

SP385A-R3, SP390A-R3

USB TO RS 

CONVERTER

QUICK START GUIDE

Summary of Contents for SP385A-R3

Page 1: ...STEP X Name of Step 24 7 TECHNICAL SUPPORT AT 877 877 2269 OR VISIT BLACKBOX COM SP385A R3 SP390A R3 USB TO RS CONVERTER QUICK START GUIDE...

Page 2: ...2 FT 1 M USB CABLE SYSTEM REQUIREMENTS ONE USB 1 1 OR 2 0 PORT FOR EACH INSTALLED DEVICE AMBIENT AIR TEMPERATURE 32 TO 158 F 0 TO 70 C NOTE The devices work with USB 1 1 or 2 0 ports but have a maxim...

Page 3: ...switches on the SP390A R3 for 2 or 4 wire operation TABLE 1 SP390A R3 DIP SWITCHES SWITCH OFF ON 1 TD always enabled TD 422 TD only enabled during data transmission TD 485 2 RD always enabled ECHO ON...

Page 4: ...icators of a problem the ports should be installed correctly and ready for use VERIFY WITH A LOOPBACK TEST 1 For RS 232 or 4 wire RS 485 verify with a loopback test See RS 232 or RS 422 485 pinout cha...

Page 5: ...RS 232 SIGNALS TTL SIGNALS 1 DCD Data Carrier Detect Input Not used 2 RD Receive Data Input Input 3 TD Transmit Data Output Output 4 DTR DTE Ready Output Not used 5 SG Signal Ground Ground Ground 6 D...

Page 6: ...DA RDB TDA TDB GND TDA TDB RDA RDB GND RS 485 Network SP390A R3 RS 485 Device Data B Data B Data A Data A GND TDA TDB RDA RDB GND SP390A R3 in a four wire setup with all switches in the OFF position S...

Page 7: ...xample SP385A R3 or SP390A R3 3 Click on the product in the Products page 4 Click on the Support tab on the product page and select the document you wish to download FOR OTHER COUNTRIES 1 Go to BLACK...

Page 8: ...YRIGHT 2018 BLACK BOX CORPORATION ALL RIGHTS RESERVED SP385A R3_SP390A R3_QSG_REV1 PDF Contact our free 24 7 technical support in the US at 877 877 2269 or INFO BLACKBOX COM For other countries go to...

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