Datasheet

QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1366A
IEEE802.3AF/AT POWER-OVER-ETHERNET POWER SOURCING EQUIPMENT CONTROLLER
LTC4266
2
Setup Procedure to Run the GUI Software
1. Install the GUI software on the PC according to
the instructions in the README.txt file included
with the GUI software.
2.
On the DC590B board:
a.
Set both sides (ISO and SW) of JP5 to ON.
b. Set JP6 to 5V. (This will be regulated down
to 3.3V on the DC1366A board.)
3. Connect the DC590B board to the PC with a stan-
dard USB A-B cable.
a. Verify the computer recognized the USB de-
vice. (The first time the DC590B board is
connected the Hardware Wizard may ask for
help to locate the driver. Direct it to the loca-
tion specified in the README.txt that came
with the GUI software.)
b. Verify the ISO PWR LED on the DC590B
board is lit.
4. On the DC1366A board:
a. Set JP5 to the USB VDD position.
b. Set JP3 to the TIE position.
c. Set JP4 (AUTO) to the HI position.
d. If midspan operation is desired set JP2 to
HI, for endspan set to LO.
5. Connect the DC590B board to the DC1366A board
with the 14-conductor ribbon cable supplied with
the DC590B board. Verify the VDD LED on the
DC1366A board is lit.
6.
Before connecting the main power supply to the
DC1366A board verify the voltage is between 51V
and 57V,
and that the main supply is turned off .
7. Connect the main power supply to the DC1366A
board with two banana patch cords as shown in
Figure 1. Verify the polarity is correct before
turning on the power; positive goes to GND and
negative to VEE.
8. Turn on the main power supply and verify the VEE
LED on the DC1366A board is lit.
9. Connect PDs to any of the ports on the DC1366A
board and verify they turn on.
10.
Launch the GUI application. Refer to the GUI us-
ers’ manual for instructions.
Setup Procedure without the GUI Software
1. On the DC1366A board:
a. Set JP5 to EXT VDD.
b. Set JP3 to the TIE position.
c. Set JP4 (AUTO) to the HI position.
d. If midspan operation is desired set JP2 to
HI, for endspan set to LO.
2. Connect a 3.3V power supply to the TP16 and
TP30 test points as shown in Figure 1. Turn on
the 3.3V supply and verify the VDD LED on the
DC1366A board is lit.
3. Before connecting the main power supply to the
DC1366A board verify the voltage is between 51V
and 57V, and that the main supply is turned off .
4. Connect the main power supply to the DC1366A
board with two banana patch cords as shown in
Figure 1.
Verify the polarity is correct before
turning on the power; positive goes to GND and
negative to VEE.
5. Turn on the main power supply and verify the VEE
LED on the DC1366A board is lit.
6.
Connect PDs to any of the ports on the ICM and
verify they turn on.