ECB-870
ECB-870 User’s Manual
35
3.10.12 Fast & Standard IrDA Connector (JIR)
Signal
PIN
PIN
Signal
+5V
1 6 NC
NC
2 7 CIRRX
IRRX
3 8
5V
Standby
GND
4 9 NC
IRTX
5 10 NC
3.10.13 Signal Configuration – Fast & Standard IrDA Connector (JIR)
IRRX
Infrared Receiver input
IRTX
Infrared Transmitter output
3.10.14 Serial Port 1 / 2 Connector in RS-232 (JCOM1, JCOM2)
Signal
PIN
Signal
DCD
1 2
RxD
TxD
3 4
DTR
GND
5 6
DSR
RTS
7 8
CTS
RI
9 10
NC
3.10.15 Signal Description – Serial Port 1 / 2 in RS-232 Mode (JCOM1, JCOM2)
TxD
Serial output. This signal sends serial data to the communication link. The signal is set to a
marking state on hardware reset when the transmitter is empty or when loop mode operation
is initiated.
RxD
Serial input. This signal receives serial data from the communication link.
DTR
Data Terminal Ready. This signal indicates to the modem or data set that the on-board UART
is ready to establish a communication link.
DSR
Data Set Ready. This signal indicates that the modem or data set is ready to establish a
communication link.
RTS
Request To Send. This signal indicates to the modem or data set that the on-board UART is
ready to exchange data.
CTS
Clear To Send. This signal indicates that the modem or data set is ready to exchange data.
DCD
Data Carrier Detect. This signal indicates that the modem or data set has detected the data
carrier.
RI
Ring Indicator. This signal indicates that the modem has received a telephone ringing signal.
