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IEEE-488 Interface Module
RS-232 Interface Module
Logic Levels Meets all IEEE Standard 488-1978 specifications
Modes of Operation
Talk Only
Addressable
Switch and bus selectable
Allows the 4421 to send to the bus keyboard-
initiated measurements only
Allows the 4422 to be addressed as talker or
listener under the command of an IEEE-488 bus
controller
Connector Standard IEEE-488 bus type
Humidity, Max 95% (non-condensing)
Altitude, Max 10,000 feet (3,000 m)
Temperature Range
Operating
Storage
0 to 50º C (32 to 122º F)
–20 to +50º C (–4 to +122º F)
Dimensions 6.5”L x 4.5” W (165 x 115 mm)
Weight, Nominal 0.5 lbs (0.23 kg)
Logic Levels Meets all EIA Standard RS-232-C specifications
Modes of Operation
Talk Always
Addressable
Switch and bus selectable
Allows the 4421 to send to the bus keyboard-
initiated measurements only
Allows the 4421 to be commanded by an RS-232
interface controller
Connector RS-232 Interface Type
Humidity, Max 95% (non-condensing)
Altitude, Max 10,000 feet (3,000 m)
Temperature Range
Operating
Storage
0 to 50º C (32 to 122º F)
–20 to +50º C (–4 to +122º F)
Dimensions 6.5”L x 4.5” W (165 x 115 mm)
Weight 0.5 lbs (0.23 kg) nominal
