5. Each Component Function
User’s Manual
63
SERIAL5 (touch panel)
One channel of serial port is provided for use as a touch panel connector (for a CONTEC flat panel
display).
SERIAL6 (RS-422/485 Ports)
One channel of serial port is provided for use as a RS-422/485 ports supporting up to a baud rate of
230,400 bps with a 64-byte transmission-dedicated data buffer and a 64-byte reception-dedicated data
buffer.
Table 5.10. RS-422/485 Port Connector (Inside the RAS Connector)
Pin No.
Signal name
Meaning
2
TX +
Transmitted data +
10
TX -
Transmitted data -
3
RX +
Received data +
11
RX -
Received data -
Reference
For more information on the RAS connector see Table 5.18, "RAS connector."
RS-422/RS-485 Specifications
- Transmission
method : RS-422/RS-485-compliant, asynchronous, serial transmission, half
duplex/full duplex
-
Baud rate
: 50 - 230,400bps (programmable)
-
Signal extension distance : 1.2km Max.
Terminal Resistor when RS-485 is in Use
Set with JP1 inside the top cover. The factory setting is " terminal resistor not available."
1 and 2 shorted
Receiver terminal
resistor available
2 and 3 shorted
Receiver terminal
resistor not available
JP1
1
2
3
JP1
1
2
3
Figure 5.2. Terminal Resistor Settings