TBH RF Serie Instructions D'utilisation Et D'entretien page 70

Operating, Environmental, Storage and Transport Conditions
- If the system is not permanently supplied with Run
Signal (pin 7+8) via interface, it may switch to standby
mode in the event of an error - The system can easily
be switched back to run via the front film.
- When using the RS232 interface, an EMC tested
adapter must be used to ensure correct function.
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