5. Each Component Function
Output connector with the RS-422/RS-485 mounted (factory
default)
Table 5.8. Output connector with the RS-422/RS-485 mounted
(RAS Connector)
Pin No. Signal 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 5.20, "RAS
connector."
Output connector with the SERIAL3, 4 bracket mounted
The output connectors available with the SERIAL3-4 bracket
mounted are RS-232C compliant serial ports same as the SERIAL
1/2 output connectors.
RS-422/RS-485 Specifications
- Transmission method : RS-422/RS-485-compliant,
asynchronous, serial transmission, half
duplex/full duplex
- Baud rate : 50 - 19,200bps (programmable)
- Signal extension distance: 1.2km Max.
Terminal Resistor when RS-485 is in Use
Set with JP4 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
JP3
123
JP3
123
Figure 5.2. Terminal Resistor Settings
52
User’s Manual
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