EBC-C413/Configuration
v1.2
www.winsystems.com
Page 22
7.10 Serial Ports
The EBC-C413 provides four 16C550-compatible UARTs serial ports.
Connect to COM1 and COM2 through the “MIO - PS/2 Keyboard, Serial 1/2,
and LPT” on page 26 and COM3 and COM4 through the “COM3-4 - COM3
and COM4 Serial Ports” on page 25. Each port is configured as data
terminal equipment (DTE). Both the send and receive registers of each
port have a 16-byte FIFO.
The RS232 has a charge pump to generate the plus and minus voltages so
that the EBC-C413 only re5 VDC to operate. An independent,
software programmable baud-rate generator is selectable from 50
through 115.2 kbps. Individual modem handshake control signals are
supported for all ports.
COM1, COM2, COM3, and COM4 (DB-9 Male and Female)
NOTE The following table contains standard pinouts of the EBC-C413 COM ports
(COM1 through COM4) when connected to DB-9 connectors.
7.11 Power
The EBC-C413 draws power through the PWR connector (see “PWR -
Power Connector” on page 23). The computer requires 5 VDC to operate.
The +12 VDC and -12 VDC power inputs are passed through to the PC104
and PC104-Plus connectors, and LVDS backlight, but are not used to
Pin
RS232
RS422
RS485
1
DCD
TX-
RX/TX-
2
RX
TX+
TX/RX+
3
TX
RX+
N/A
4
DTR
RX-
N/A
5
GND
GND
GND
6
DSR
N/A
N/A
7
RTS
N/A
N/A
8
CTR
N/A
N/A
9
RI
N/A
N/A
