User Documentation
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Serial/Ethernet Converter LED Indicators (front panel) 
Name 
Color 
Function 
PWR1, 
PWR2 
Red 
Power is being supplied to power input PWR1 
or PWR2 
Ready 
Red 
Steady on:  Power is on and the 
Serial/Ethernet Converter is 
booting up. 
Blinking:  Indicates an IP conflict, the 
DHCP or BOOTP server did not 
respond properly, or a relay 
output occurred. 
green 
Steady on:  Power is on and the 
Serial/Ethernet Converter is 
functioning normally. 
Blinking:  The Serial/Ethernet Converter 
has been located by the 
Administrator’s "Locate" function. 
off 
Power is off, or a power error condition exists. 
E1, E2 
orange 
10 Mbps Ethernet connection. 
green 
100 Mbps Ethernet connection. 
off 
Ethernet cable is disconnected, or has a 
short. 
P1, P2 
orange 
Serial port is receiving data. 
green 
Serial port is transmitting data. 
off 
No data is being transmitted or received 
through the serial port. 
4. Hardware Installation Procedure 
STEP 1:  After removing the Serial/Ethernet Converter from the box, first 
connect the power adaptor. Connect the 12-48 VDC power line 
with the terminal block, or connect the DIN-Rail power supply 
with the Serial/Ethernet Converter’s terminal block. 
STEP 2:  Connect the Serial/Ethernet Converter to a network. Use a 
standard straight-through Ethernet cable to connect to a Hub 
or Switch. When setting up or testing the Serial/Ethernet 
Converter, you might find it convenient to connect directly to 
your computer’s Ethernet port. Use a cross-over Ethernet 
cable If the PC don’t support autocrossing. 
STEP 3:  Connect the Serial/Ethernet Converter’s serial port to a serial 
device. 
STEP 4:  The Serial/Ethernet Converter is designed to be attached to a 
DIN-Rail or mounted on a wall. For DIN-Rail mounting, push 
down the spring and properly attach it to the DIN-Rail until it 
“snaps” into place. For wall mounting, install a wall mount kit 
first, and then screw the device onto the wall. The following 
figure illustrates the two mounting options: 









