voltage to the load will be 1.5volts less than the voltage supplied to the
circuit.
With the option OPTO HISIDE, the sense of the outputs will be
inverted; when the output is cleared (using the CB command), the output
will source current to the load and when the output is set (using the SB
command), the output will not source current to the load. To re-invert the
sense of the outputs, use the option OPTO HISIDE INVOUT (see
previous section "Inverting the Logic Sense of the Opto-Isolation").
ISO POWER GND (ICM-1900,PIN 35)
OUT GND (ICM-2900)
TO BE CONNECTED TO USERS ISOLATED POWER SUPPLY
OUT[x] (66 - 73)
ICM-1900 / ICM-2900
CONNECTIONS
(-HISIDE OPTION)
RP4=10K OHMS
FROM
CONTROLLER
+5V
OUT[x] TTL
TO LOAD (RELAY ETC.)
ISO OUT POWER (ICM-1900,PIN 19)
OUT POWER (ICM-2900)
TO BE CONNECTED TO USERS ISOLATED GND
NOTE: When the opto-isolation is configured for high side
operation, the terminal connections ISO GND and ISO POWER are not
connected in the usual manner: The ISO GND terminal should be
connected to the opto-isolation power supply. The ISO POWER terminal
should be connected to the opto-isolated gnd. The outputs (OUT[1]
through OUT[8] will be connected to the load).
