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SECO104-CX700M
User Manual - Rev. First Edition: 1.0 - Last Edition: 3.1 - Author: S.B. - Reviewed by G.M.
CN9 is a dual row, 10 pin, pitch 2mm, "standard flat" connector, right angle, type MATSUYAMA
LN710 or equivalent.
For RS485 interface mode (half duplex mode), data transfer direction (receive or transmit) can be
selected through RTS signal, as shown in the following table:
TRANSMIT
RECEIVE
Please consider that RS-422 / RS-485 serial port doesn't have any termination or polarisation
resistor. If these resistors are needed, you need to provide them externally to the board.
3.3.11 COM1 Serial Port Connector
CN11 connector provides RS232 full modem signals for COM1 serial port.
Relative I/O base address and IRQ can be selected via CMOS SETUP BIOS' utility.
It is a single row, 10 pin, male, straight, P1.25 connector, type MOLEX 53047-1010 or equivalent.
3.3.12 Dual Audio Amplified connector
CN12 connector provides 2-channel audio output, amplified, able to drive directly two speakers.
Audio output power is 2.2W on a 4-Ohm Load, or 1.1W on an 8-Ohm load.
Connector is a single row, 4 pin, male, P1.25mm, type MOLEX 53047-0410 or equivalent.
CN12 - Dual Audio connector
PIN
1
SPK_Right+
2
SPK_Right-
3
SPK_Left+
4
SPK_Left-
RS485 COM2 DATA TRANSFER DIRECTION SETTING
Set RTS to logic '0'
Set RTS to logic '1'
CN11 – COM1 CONNECTOR
PIN
1
DCD_1
2
DSR_1
3
RX_1
4
RTS_1
5
TX_1
6
CTS_1
7
DTR_1
8
RI_1
9
GND
10
GND
SIGNAL
Copyright © 2011 SECO s.r.l.
SECO104-CX700M
Set bit 1 of MCR (COMB base
address + 4).
Reset bit 1 of MCR (COMB base
address + 4).
SIGNAL
pag. 24
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