Setting Jumpers 410
Introduction
1-Port IOLAN DB9
To change the settings, do the following:
1. Unplug the IOLAN from the electrical outlet and disconnect everything from the box.
2. Open the case by unscrewing the two side screws, one on each side, and lifting off the top of the
case. You should see the following:
3. To turn line termination on, locate and jumper J1 for Full Duplex Rx (422) or J9 for Half Duplex
Rx/Tx (485).
4. Close the IOLAN case by replacing the case lid and the two screws. You can now power it on
with the new settings.
2-Port IOLAN SDS1M (Modem)
To change the settings, do the following:
1. Unplug the IOLAN from the electrical outlet and disconnect everything from the box.
2. Open the case by unscrewing the two side screws, one on each side, and lifting off the top of the
case. You should see the following:
3. To change the power pin out, locate J4. For the fixed 5V DC output, jumper pins 1 and 2. For the
output to equal the external adapter input, jumper pins 2 and 3.
4. To turn line termination on, locate and jumper J7 for Full Duplex Rx or locate and jumper J8 for
Half Duplex Rx/Tx.
5. Close the IOLAN case by replacing the case lid and the two screws. You can now power it on
with the new settings.
Power
DIP
Switch Reset
RJ45
DB9 Serial
Screw
Screw
J1
J9
Power
DIP
Switch Reset
RJ45
RJ45 Serial
Pin1
Screw
Screw
J8
J4
J7
Modem