User's Manual

Jumper Settings
2-4 Blackfin USB-LAN EZ-Extender Manual
Power Select Jumper (JP1)
By default, the power select jumper, JP1, must have no jumpers on any of
its pins. The jumpers can be used only when the extender is plugged into
an ADSP-BF537 EZ-KIT Lite (see Table 2-1).
When using an ADSP-BF533 or ADSP-BF561 EZ-KIT Lite, you must
not place any jumpers on JP1. Placing a jumper on JP1 can damage the
extender card and/or the EZ-KIT Lite. You must power the
ADSP-BF533/ADSP-BF561 EZ-KIT Lite and USB-LAN EZ-Extender
with the 7.5V power supply provided with the EZ-KIT Lite.
When using an ADSP-BF537 EZ-KIT Lite with the Power-over-Ethernet
feature, you must place a jumper between JP1 pin 2 and JP1 pin 3. You
must power both the EZ-KIT Lite and USB-LAN EZ-Extender with the
CAT5E Ethernet cable, which provides power over the signal pairs. The
Ethernet cable must be plugged into the Ethernet connector of the
ADSP-BF537 EZ-KIT Lite, but not the USB-LAN EZ-Extender. Use the
7.5V power supply provided with the EZ-KIT Lite.
When using an ADSP-BF537 EZ-KIT Lite without the
Power-over-Ethernet, you must not place any jumpers on
JP1. You must
power both the EZ-KIT Lite and extender with the 7.5V power supply
provided with the EZ-KIT Lite.
For an overview of the Power-over-Ethernet interface, refer to
“Power-Over-Ethernet” on page 1-5.
Table 2-1. JP1 Settings
Source of 5V Power JP1 Setting
EZ-KIT Lite power No jumpers (default)
USB test mode (do not use)
JP1.1 and JP1.2
Power-over-Ethernet JP1.2 and JP1.3