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Appendices
CPB902
C P B 9 0 2 U s e r M a n u a l
88
© 2 0 0 8 F a s t w e l v . 1 . 5 b E
6
Appendices
6.1
Jumper Settings by Function
Table 6.1:
Jumper Settings by Function
Function
Jumper
Short Description (*)
J6: 1-2
Enable terminator between TX+ and TX- lines of COM3 port in RS422
mode
Terminators on COM3
in RS-422/RS-485 modes
J6: 3-4
Enable terminator between RX+ and RX- lines of COM3 port in RS422
mode or between D+ and D- lines of COM3 port in RS485 mode
J8: 1-2
Enable terminator between TX+ and TX- lines of COM4 port in RS422
mode
Terminators on COM4
in RS-422/RS-485 modes
J8: 3-4
Enable terminator between RX+ and RX- lines of COM4 port in RS422
mode or between D+ and D- lines of COM4 port in RS485 mode
J10: 1-2
Enable terminator between TX+ and TX- lines of COM5 port in RS422
mode
Terminators on COM5
in RS-422/RS-485 modes
J10: 3-4
Enable terminator between RX+ and RX- lines of COM5 port in RS422
mode or between D+ and D- lines of COM5 port in RS485 mode
J12: 1-2
Enable terminator between TX+ and TX- lines of COM6 port in RS422
mode
Terminators on COM6
in RS-422/RS-485 modes
J12: 3-4
Enable terminator between RX+ and RX- lines of COM6 port in RS422
mode or between D+ and D- lines of COM6 port in RS485 mode
J13: 1-2
Enable module reset by supervisor's WDT
J13: 3-4
Enable module reset by SIO internal WDT
J13: 5-6
Enable module reset by optoisolated input signal
Microprocessor RESET
signal source selection
J13: 7-8
Enable the optoisolated input as IRQ14 source
J18: 1-2
LCD contrast control voltage range is set to 0 … +5 V
LCD contrast control
voltage range selection
J18: 3-4
LCD contrast control voltage range is set to negative value (-7V … 0)
Connection of the battery
to RTC
J19: 1-2
If closed the battery is connected to RTC
ROM1 addressing.
Switching between main
and reserve BIOS copies
J19: 3-4
Enable lower ROM BIOS part addressing.
If the jumper is not set, the upper part of ROM BIOS is addressed
(with main BIOS copy). Closing the jumper enables reserve BIOS copy
(*)
The action described in this column corresponds
to the closed jumper contacts