Contec AI-1204Z-PE, Reference Manual

Page: 23 / 85

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Setup
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AI-1204Z-PE Reference Manual
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2. Termination Resistor Setting Switch
The termination resistor setting switch is used to insert the termination resistor. Set up the
termination resistor if suitable for the device to which you are connecting.
This product has internal 50
Ω (±1%) termination resistors. SW4 sets the resistor for channel 0, SW3
for channel 1, SW2 for channel 2, and SW1 for channel 3.

Do not change the switch setting while the signal source is connected.
Changing the setting may damage this product or connected signal source.

The input current increases when the 50 Ω termination resistor is inserted.
Check the output current of the input signal source if connecting the termination resistor.
Inappropriate use of the termination resistor may damage the input signal source.

Termination resistor setting
If you want to set a termination resistor, set the switch corresponding to the desired channel to the
connector side.
Termination resistor 50 Ω setting
[Enabled]
Termination resistor 50 Ω setting
[Disabled]
<Factory default>
SW1 SW1
SW2 SW2
SW3 SW3
SW4 SW4
3. Board ID Setting Switch
If you install two or more boards on one personal computer, assign a different ID value to each of
the boards to distinguish them. Set a different value per board.
The board IDs can be set from 0 - Fh to identify up to sixteen boards. If only one board is used, the
original factory setting (Board ID = 0) should be used.