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POW-R-SWITCHES 4L AND 8L
3.4 Power Control
Select the mode of control by using the DIP switch mounted at the front of
the unit. Then you'll turn the power ON by raising the signal of the control
lead or leads you selected (RTS and/or DTR). Turn the power OFF by
dropping the selected control signal(s).
Mode 1:
When RTS (pin 7) is present, all relays are ON.
When RTS (pin 7) is not present, all relays are OFF.
DTR (pin 4) is not used.
Mode 2:
When DTR (pin 4) is present, all relays are ON.
When DTR (pin 4) is not present, all relays are OFF.
RTS (pin 7) is not used.
Mode 3:
When RTS (pin 7) and DTR (pin 4) are both present, all
relays are ON.
When RTS (pin 7) and DTR (pin 4) are not both present,
all relays are OFF.
Mode 4:
When DTR (pin 4) is present, relays 1 through 4 are ON.
When DTR (pin 4) is not present, relays 1 through 4 are
OFF.
When RTS (pin 7) is present, relays 5 through 8 are ON.
When RTS (pin 7) is not present, relays 5 through 8 are OFF.
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