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WARNING:
Be sure to use the IR-320 within the specified standard temperature range; in particular,
do not use the IR-320 at high temperatures and high humidity, and never operate it
where dew may condense on it.
The battery contains flammable substances, such as lithium and an organic solvent. Do
not short-circuit, disassemble, deform, heat, or throw the battery into a fire. The fire may
cause the battery to generate heat, burst, and ignite.
Interface
Serial Connectors
The IR-320 has four NS16550-compatible serial ports (COM1, COM2, COM5, COM6). It has four
outside connectors, however, COM5 and COM6 cannot be used by default. Assign COM5 and
COM6 to interrupts not in use.
Assignment of serial connector signals
No.
Signal name
1
DCD/power supply (*) I/—
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
(*) Pin 1 can be set for +5 V output and +12 V output with the jumper settings (JP7 to JP18) on the main board.
Rev. C
1
6
I/O
Description
Carrier detection signal or power supply output
I
Received data signal
O
Transmission data signal
O
Terminal ready signal
—
Ground
I
Data set ready signal
O
Transmission request signal
I
Transmission data cleared signal
I
Ring signal
IR-320 Technical Reference Manual
5
9
Hardware Specifications 7-9
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