Applications Engineering
6.4.2. JP2: Power LED (D4) and RS232 (U7) Transceiver Power
JP2 is used to connect the Vcc pin of the RS232 transceiver chip (U7) to the 3.3V supply of the board.
It also connects the red Power LED (D4) to the board’s supply. It can be used to reduce the board’s
power consumption by disconnecting the RS232 transceiver and Power LED. For normal operations,
JP2 must be shorted.
JP2 is shorted by default.
6.4.3. Default Jumper Settings
Table 6-1: Default Jumper Settings
Jumper
Default
Setting
JP1: MCU Power
Shorted
JP2: Power LED and RS232 Power Shorted
6.5. LCD (Liquid Crystal Display)
The LCD is a 2-line by 8-character display with a KS0066 controller IC.
6.6. ZigBee RF
The ZigBee RF circuit utilizes a Chipcon CC2420, 2.4GHz, IEEE 802.15.4 compliant transceiver IC.
RZB-CC16C-ZDK User’s Manual Rev 1.1
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December 2006
