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Configuring RS-232/422 Parameters
The RS-232/422 interface is only to be used for serial communications. Cable length
should not exceed 50 feet (15 meters).
Note:
The DIP switch is read only when power is applied to NetScan, and for that reason must be set before
applying power.
Note:
Unless an interface option is used, NetScan's serial port operation will be with RS-232 electrical
characteristics. For serial port use, NetScan's rear panel DIP switch settings determine the baud rate, stop
bits, parity, and handshake.
Use the following steps when you desire to change RS-232/RS-422 serial port parameters.
The DIP switch is located on the lower right corner of NetScan's rear panel. Default settings are as follows.
Note that micro-switch #1 must be set to the "0" position. The IEEE position does not apply to NetScan.
NetScan, Default DIP Switch Settings
1.
Turn the NetScan system's power "OFF."
2.
Set the "Ethernet, RS-232/422 Selector Switch" to the RS-232/422 position. This switch is located on the
ethernet interface portion of NetScan's rear panel (refer to rear panel figure, as needed).
3.
Ensure the COMM SELECT micro-switch #1 (on NetScan's rear panel DIP switch) is in the "0" (down)
position. This position is required. Note that the IEEE 488 position does not apply to NetScan.
4.
Adjust micro-switches according the following table.
Hardware
Selection
Micro-Switch #
COMM SELECT
1
HANDSHAKE (H/S)
2,3
PARITY
4,5
BAUD RATE
6,7,8
RS-232/422 SELECT
9
Setting
0 – Required for NetScan
1,0 – Hardware Handshake
0,0 – No Parity
1,1,0 – 19200 Baud
0 – RS-232
7-7
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