DB9 Male
DB9 Male
DB9 Female
DB9 Female
2
RD
3
TD
4
DTR
DSR, DCD
7
RTS
8
CTS
5
GND
9
RI
Straight Cable Wiring
IRF-631
RS-232
Device
DB9
Signal
RD
TD
DTR
DSR,DCD
RTS
CTS
GND
RI
2
3
4
6,1
7
8
5
9
DB9
Signal
6,1
See below for the pin assignment for crossover cable.
IRF-631
RS-232
Device
DB9 Male
DB9 Male
DB9 Female
DB9 Female
2
RD
3
TD
4
DTR
6,1 DSR, DCD
7
RTS
8
CTS
5
GND
9
RI
Cross Cable Wiring
DB9
Signal
2
TD
3
RD
6,1 DSR,DCD
4
DTR
7
CTS
8
RTS
5
GND
9
RI
DB9
Signal
1. Overview
The IRF-629 & IRF-631 Converters are used to connect
legacy serial device to fiber based Ethernet
IRF-629 – RS-422/485 to Fiber Converter
IRF-631 – RS-232 to Fiber Converter
2. Package Checklist
Before installing IRF-6xx series, verify that the package
contains the following items:
IRF-629/IRF-631 Converters
Din Rail kit
Power adapter (Check for area type)
IRF-6xx series Quick Installation Guide
Push
Button
Power
Input
DCE
DTE
PWR
9~32VDC
800mA
LNK
RCV
RS-232
Port
Fiber
Port
TX
RX
DIP
Switches
Power
Input
PWR
9~32VDC
800mA
OFF
ON
1 2 3 4
DIP SW
1 NA
2 NA
3
ON:485 2W
OFF:422/485 4W
4 TMR
LNK
RCV
RS-422/485
Port
Fiber
Port
TX
RX
Wallmount
screw hole
Wallmount
screw hole
3. Hardware Installation Procedure
STEP 1:
Remove the IRF-629/IRF-631 from packing. Connect
the 9-32V DC power adapter to the power input on
rear panel.
STEP 2:
Connect the Fiber port to the networking device. See
the LNK/ACT LED to confirm if the connection is
established.
STEP 3:
Connect the serial port to the serial devices.
STEP 4:
See the DIP switch on rear panel to enable/disable the
required features for appropriate usage.
NOTE:
Please use the same hardware version for pair
connection. The version information is shown on
the label, i.e Rev.A.
4. Location
The IRF-629/ IRF-631 can be placed on a desktop or
horizontal surface, wall mounted and Din Rail mounted.
Quick Installation Guide
IRF-629/IRF-631
-1-
-2-
-3-
IRF-629
IRF-631
5. Terminal Block (RS-422/485) Wiring - IRF-629
IRF-629 offers 5-pin terminal block port. See the figure
below for the pin assignment.
Data+
Data-
GND
Rx+
Rx-
B
A
RS-485(2W)
RS-422(4W)
RS-485(4W)
RS-422/485
GND
TX+
TX-
(A)Rx+
(B)Rx-
Din Rail
Wall Mount
IRF-631 offers 9-pin male console port. See figure be
low for the pin assignment for straight cable. This pin
assignment can also be used for IRF-633/634 as well if
using RS-232 configuration for serial port.
6. DB9 Male Pin Assignment (RS-232)
– IRF-631
Tx+
Tx-
GND
Rx+
Rx-
