I/O Terminal Block Options

• There are six different I/O terminal blocks available to

meet the wiring needs of field signals

• Standard Terminal Block

• Fused-Injected-Power Terminal Block

• 3-wire DI Fused Injected-Power Terminal Block

• Relay Output Terminal Block

• Thermocouple / mV Terminal Block

• 3-wire AI Fused Injected Power Terminal Block

The Standard Terminal block can be used with all CHARM

types. For traditional wiring of field instrumentation,

the CHARMs provide loop power through the internally

distributed 24V DC field power. Refer to specific CHARM

specifications for wiring information.