GW Instek GPT-9800 series User Manual - Manual (Page 13)

INTRODUCTION
13
Remote Interface There are a variety of remote control interfaces
including: RS-232, USB (Host/Device), GPIB and
the EXT I/O connector.
Protection The LED warning indicator will illuminate and
emit a tone by default for:
 Judgment limits. (high/low limits).
 High Voltages output from the testing
terminals.
 Overload protection (fuse protection).
 Relay protection for EUT overloads.