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FRB-200U/200/100 User Manual (Ver.1.3, Jun.2008, fmh-001-12) ---- 10
2.2 Jumper Setting
2.2.1 JP3 / JP4 : Terminating resistors selection
Terminating resistors must be installed at each end of the FRnet to prevent
reflections in the transmission line. JP3 is used for FRnet Port0, and JP4 is used
for FRnet Port1. In general, the FRB-200U/200/100 card is the first device on
the network; therefore, the terminating resistors are always ON.
ON (default) OFF
ON(default) OFF
2.2.2 SW1 / SW2 : CLK, Node setting
Switch1 and switch2 are designed for feature extension, so do not
change the default setting. If users change the switch setting, the FRnet may not
keep working.
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