Parts and Functions
FP2 Serial Data Unit
2 − 5
2.1 Parts and Functions
2.1.3 COM.1 and COM.2 Ports (9 pins)
This connector is used to connect RS232C devices such as a personal computer or bar
code reader using a shielding wire.
Pin layout
Pin No. Name Abbrev. Signal direction
1 Protective ground FG —
2 Sent data SD
Unit → External device
3 Received data RD
Unit ← External device
4 Request to send RS
Unit → External device
5 Clear to send CS
Unit ← External device
6 Not used — —
7 Signal ground SG —
8 Received line signal detector CD
Unit ← External device
9 Data terminal ready ER
Unit → External device
2.1.4 Transmission Format Setting Switch
This switch is used to specify the transmission speed and the data length parameters
for the COM.1 port and COM.2 port. The values set using this switch are automatically
reflected in the settings when the power supply is turned on. For other information on
transmission format settings, refer to section 3.2.
For COM.1 port For COM.2 port
Port
Data (bit position)
Function
123 4 567 8
COM.1 100 System reservation
110 Transmission speed 19200bps
101
9600bps
111 4800bps
0 Data length 7 bits
1
8 bits
COM.2 100 System reservation
110 Transmission speed 19200bps
101
9600bps
111 4800bps
0 Data length 7 bits
1
8 bits
In the above table, “1” indicates that the transmission format setting switch (DIP switch)
is on, and “0” indicates that it is off.
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(9 pins)
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