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System Description
I/O Components
External Accessory
The external accessory connector is not used in the Model 43i Trace Level-
Enhanced analyzer.
Connector
This port is used in other models to communicate with smart external
devices that may be mounted hundreds of feet from the analyzer using an
RS-485 electrical interface.
Thermo Fisher Scientific
Model 43i Trace Level-Enhanced Instruction Manual
8-13
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Troubleshooting
