Maretron user manual SIM100 Users Manual, Page, Revision

SIM100 User's Manual

A switch indicator	Ensure that there is not a short circuit in the wiring for the switch.
always reads “Closed”	Measure the resistance between the “A” and “B” terminals for the
	appropriate indicator. If the switch is open, the resistance should
	either be an open-circuit, if the indicator is configured as “No End
	of Line Resistor”, or should measure 8 KΩ if the indicator is
	configured as “End of Line Resistor”. If the switch is closed, the
	resistance should be close to 0 Ω.
A switch indicator	Ensure that the configuration of the indicator matches the circuit
always reads “Error”	connected to it. Measure the resistance between the “A” and “B”
	terminals for the appropriate indicator. If the switch is open, the
	resistance should either be an open-circuit, if the indicator is
	configured as “No End of Line Resistor”, or should measure 8 KΩ if
	the indicator is configured as “End of Line Resistor”. If the switch
	is closed, the resistance should be close to 0 Ω.
A switch indicator	Ensure that the switch is connected to the indicator terminals that
always reads “Open”	that there are no open circuits between the SIM100 and the switch.
	Measure the resistance between the “A” and “B” terminals for the
	appropriate indicator. If the switch is open, the resistance should
	either be an open-circuit, if the indicator is configured as “No End
	of Line Resistor”, or should measure 8 KΩ if the indicator is
	configured as “End of Line Resistor”. If the switch is closed, the
	resistance should be close to 0 Ω.

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