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FOR YOUR REFERENCE
RS-232C PORT INTERFACE
When connecting the PC to the RS-232C port of the Equipment, use a RS-232C straight cable.
The following describes the RS-232C port interface.
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Appearance of Connector
9-pin Connector (Male Type)
RS-232C
1
6
9
5
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Signal Lines of RS-232C Port Interface.
Pin No.
JIS
Signal Direction
P C
Equipment
Name
Function
Shell
㧔
FG
㧕
Frame Ground Frame ground for the Equipment
1
CD
Unused
Unused
2
RD
Receive Data Data sent from the Equipment to the PC
3
SD
Send Data Data sent from the PC to the Equipment
4
ER
Data
Terminal
Ready
Indicates whether the PC is ready for operation.
ON
㧦
Indicates that it is ready to send/receive
the data.
OFF
㧦
Indicates that it is not ready to send/receive
the data.
5
SG
Signal Group Gives the reference potential to the mutual connection circuit.
6
DR
Data Set
Ready
Indicates whether the Equipment is ready for
operation.
ON
㧦
Indicates that it is ready to send/receive
the data to/from the PC.
OFF
㧦
Indicates that it is not ready to send/receive
the data.
7
RS
Request to
Send
Requests for a permission to send the data.
ON
㧦
Requests for a permission to send the
data.
OFF
㧦
Does not request for a permission to send
the data.
8
CS
Clear to
Send
Indicates whether it is possible to send the data.
ON
㧦
Capable of sending the data.
OFF
㧦
Not capable of sending the data.
9
CI
Unused
Unused
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Communication Specifications
Synchronizing system
Asynchronous
8bit
None
1bit
115.2 kbits/sec.
Data length
Parity bits
Stop bits
Communication speed
Hard flow
Flow control