B&B Electronics USOPTL4-4P - Quick Start Guide - Manual (Page 2)

P#8505R002_ULINX 2&4 PORT_0712qsg
5
Dip Switch Setting
TDA(-)
TDB(-)
RDA(-)
RDB(-)
GND
USB
TO PC
RS-485
External Power Option:
USO9ML2-2P 10 to 30 VDC @ 3.0 W max.
USO9ML2-4P 10 to 30 VDC @ 5.0 W max.
USOPTL4-2P 10 to 30 VDC @ 3.0 W max.
USOPTL4-4P 10 to 30 VDC @ 5.0 W max.
Surrounding Air Ambient Temperature: 0 to 70° C
Dip Sw itch Settings
Sw itch Off (left) On (right)
1 RS-422 RS-485
2 ECHO ON ECHO OFF
3 4-Wire 2-Wire
4 4-WIre 2-Wire
6
Pinouts
RS485 Pinout (Term inal Blocks)
Term inal
Position RS-485, 4 Wire RS-485, 2 Wire
A Transmit TDA (-) Output Data A (-) Input / Output
B Transmit TDB (+) Output Data B (+) Input / Output
C Receive RDA (-) Input Data A (-) Input / Output
D Recieve RDB (+) Input Data B (+) Input / Output
E Ground Ground
Note: For models with selectable RS-422/485 configurations
Dip switches allow the module to be configured for two-wire or
four-wire, RS-422 or RS-485 modes. In two-wire mode the TDA (-)
and RDA (-) are tied together and so are TDB (+) and RDB (+),
making multi-dropping this converter into an existing network easy.
7
Optional External Power for
Optically Isolated Units
1. Loosen the screw to open the terminal block lead clamp.
2. Insert the power lead. TB will accept 28-16 AWG wire.
3. Tighten the screw to close the terminal block lead clamp. Ensure
the clamp holds the lead securely. However, do not over tighten.
NOTE: For Replacement Terminal Block, Order Part #7444.
NOTE: To remove drivers from a PC, there is an Uninstall
reference document on the CD ROM.
RS-232
RS-232 Pinout (DB9 Male DTE)
PIN Signal Name
RS-232
Signals
1 DCD (Data Carrier Detect) Input
2 RD (Receive Data) Input
3 TD (Transmit Data) Output
4 DTR (DTE Ready) Output
5 SG (Signal Ground) Ground
6 DSR (DCE Ready) Input
7 RTS (Request to Send Output
8 CTS (Clear to Send) Input
9 RI (Ring Indicator) Input