Справочник Пользователя для L3 Technologies AISA6
165M2040-10 Rev. A
Page 68
Use the arrow keys to navigate to the desired port, press ENT to enter the field
and press the arrow keys to cycle through the available BAUD rates. Press ENT
again to exit and save the setting.
The fields and their rates are described below.
IEC Sensor Input Channels:
Valid baud rates for CH1, CH2, and CH3
(Default = 4,800)
IEC Bidirectional Channels:
Valid baud rates for CH4, CH5, CH8, and
Pilot (front panel) (Default = 38,400)
Available Baud Rates for all channels are:
4,800
9,600
19,200
38,400
57,600
115,200
4.3.16 Set RS422 Termination Controls
Proper cable termination is very important for signal fidelity particularly over long
cable runs. If the cable is not terminated with its characteristic impedance,
reflections will distort the signal waveforms.
A switchable termination resistor is integrated at the receiver input to provide
proper termination to the data bus. This is ideal for use in networks where
grounds can take on different voltages. Isolation in the circuitry blocks high
voltage differences and eliminates ground loops and is extremely tolerant of
common mode transients between ground potentials. The circuitry also mitigates
the adverse effects of imperfect transmission line termination caused by stubs or
mismatched cables.
For normal installations where cable runs are relatively short and the cable
networks are simple this termination is not needed and should be left at the
default (disabled) setting.