B&B Electronics USOPTL4 Quick Start Manual

Product Overview

Front View
Serial
LED
Connector
Indicators
DIP Switches
Back View
Install Drivers
1
Use the included CD to install the converter's
drivers.
Warning: To prevent installation errors, do not
plug in the hardware until you have already
installed the drivers
After connecting the device you can check
Device Manager to learn which Com port
number was assigned.
2 Set DIP Switches
OFF=left
DIP Switch Position
Switch
USB Port
TD always enabled
1
(TD 422)
RD always enabled
2
(ECHO ON)
3
4-wire mode (4-Wire)
4
4-wire mode (4-Wire)
3 Wire the Converter
2-Wire RS-485
• All DIP Switches = ON
USOPTL4 or USPTL4
TDA (-)
TDB (+)
RDA (-)
RDB (+)
ON=right
OFF ON
TD only enabled during
data transmission (TD 485)
RD disabled during data
transmission (ECHO OFF)
2-wire mode (2-Wire)
2-wire mode (2-Wire)
2 Wire Set-up
RS-485
NEG (-)
POS (+)
GND GND
4-Wire RS-422/485
• RS-422 = All DIP Switches off
• RS-485 = DIP 1 ON, DIP 2, 3 and 4 OFF
4 Wire Set-up
USOPTL4 or USPTL4 RS-422/485
TDA (-)
RDA (-)
TDB (+)
RDB (+)
RDA (-)
TDA (-)
RDB (+)
TDB (+)
GND
GND
4 Loopback Test
• Set DIP switches 1, 3, 4 to ON.
• Set DIP switch 2 to OFF.
• Use HyperTerminal or another terminal
program to confirm passage of data
through converter.
5
Check LEDs
When everything is installed and connected
the LEDs will blink to let you know that data
traffic is passing through the converter