SENA ProBee-ZE20S-SEME - Manual (Page 44)

ProBee-ZE20S-SExx User Guide Rev 1.8 44
Figure 5-1 Development Board Layout
5.3 Development Board Hardware Descriptions
5.3.1 Power
There are four ways to supply power to the development board:
 5V Power Adapter
 USB Port
 Batteries (AA 1.5V x 4)
 RS232 Port (5V through 9 th Pin)
The PWR_SEL(JP1) jumper MUST be configured properly according to the way to supply power. Table 5-
1 shows jumper configuration.
Table 5-1 Jumpers Configuration
5.3.2 RS232 Port
The development board has an RS232 interface for UART communication. The UART_TXD, UART_RXD,
UART_DSR (GPIO_1), UART_DTR (GPIO_2), UART_CTS (GPIO_3) and UART_RTS (GPIO_4) pins of
the ZE20S are connected with the RS232 port. To enable the RS232 port, the HOST (SW2) switch should
be set to UART.
5V Power Adapter Batteries USB Port RS232 Port
P
W
R
_
S
E
L
DB9
USB
BATT
DC5V