MCC MIIC-101, Руководство пользователя

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An RS-232 serial port connector (COM) and cable provides connection to
an optional Host system. This port provides remote unit control and data
uploading capabilities.
Pin Signal Description
1 CTS Clear To Send (Host > Monitor) (Optional)
2 TX Data (Monitor > Host)
3 GND Ground Line
4 RX Data (Host > Monitor)
A serial port cable with DB-25 and DB-9 adapter, included with the unit,
provides connection to the RS-232 serial communications port on an
optional Host system.
An External Trigger port connector (TRIG ) and clip lead provides Trace
synchronization with external signals. The trigger is activated on a high to
low signal transition.
RS-232 Serial Port
External Trigger Port