B&B Electronics P#8506R2 Fascicule
P#8506R2 ULINX 1&2 PORT_0712qsg
5
Dip Switch Setting
TDA(-)
TDB(-)
RDA(-)
RDB(-)
GND
USB
TO PC
RS-485
RS-232 and TTL Pinout (DB9 Male DTE)
PIN
Signal Nam e
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
DSR (DCE Ready)
Input
Not Used
7
RTS (Request to Send)
Output
Output
8
CTS (Clear to Send)
Input
Input
9
RI (Ring Indicator)
Input
Not Used
NOTE: To remove drivers from a PC, there is an Uninstall
reference document on the CD ROM.
reference document on the CD ROM.
1. To verify the installation went correctly 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.
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.
a problem the ports should be installed correctly and
ready for use.
2. Verifying with a loopback test.
If the device is RS-232, loopback pins 2 and 3. If the
device is RS-422 or RS-485, loopback the TDA(-) to
RDA(-) and TDB(+) to RDB(+). Use the pin-out charts
for the location of each pin or terminal.
device is RS-422 or RS-485, loopback the TDA(-) to
RDA(-) and TDB(+) to RDB(+). Use the pin-out charts
for the location of each pin or terminal.
Using Hyper Terminal or similar program, connect to
the appropriate COM port. Set the desired baud rate.
Ensure Hyper Terminal local echo is OFF. (Note:
Hyper Terminal is not provided with Vista or 2003
Server)
the appropriate COM port. Set the desired baud rate.
Ensure Hyper Terminal local echo is OFF. (Note:
Hyper Terminal is not provided with Vista or 2003
Server)
Transmit data. If the same character string is returned,
the test is good.
the test is good.
4
Verifying Installation
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.
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.
RS-232
RS-485 Pinout (DB9 Fem ale)
Pin
RS-485, 4 Wire
RS-485, 2 Wire
1
Not Used
Not Used
2
Receive RDA (-) Input
Data A (-) Input / Output
3
Transmit TDB (+) Output
Data B (+) Input / Output
4
Ground
Ground
5
Not Used
Not Used
6
Ground
Ground
7
Receive RDB (+) Input
Data B (+) Input / Output
8
Transmit TDA (-) Output
Data A (-) Input / Output
9
Not Used
Not Used
DB9 Male
DB9 Female