Sequoia / Tahoe Series User Manual California Instruments
58 M447352-01 REV-A
NOTE: SYNC input is not supported in SINK-Electronic Load operating mode
LKS (Option)
Signal inputs for Auxiliary Clock and Logic signals used in synchronizing two or
more AC sources;
logic level, TTL-compatible;
rear panel BNC connectors for each signal;
safety isolation SELV-rated, referenced to chassis.
NOTE: SYNC input is not supported in SINK-Electronic Load operating mode.
Table 3-15: Trigger Output Function
3.8.3 External I/O Control Signal Connector
The External Input/Output connector, EXT IN/OUT, is located on the rear panel. Figure 3-14 shows the
rear panel view of the connector, Table 3-16 lists the connector type. Table 3-17 shows the functions and
Table 3-18 shows the connector pinout.
Figure 3-14. External Input/Output Control Connector
Connector Type
External Input/Output Control High-density, 15-socket, receptacle (female) Subminiature-D.
Table 3-16. External Input/Output Control Connector Type
Function Characteristics
External Analog
Modulation of
Output Voltage
Signal input for output voltage modulation of waveform set by internal controller reference;
0-5 V(RMS) signal range for 0-10% of full-scale output voltage amplitude modulation;
programming accuracy, ±2% of full-scale output;
individual inputs provided for each output phase; input impedance, 40 kΩ, typical;
safety isolation SELV-rated, referenced to chassis.
NOTE: External Analog waveform modulation function is not supported in SINK- Electronic
Load mode
Trigger Input
Signal input for external trigger for execution of programmed value;
logic level, TTL-compatible;
Signal return common to signals, Trigger input, Synchronization Clock and Remote Inhibit;
safety isolation SELV-rated.
Synchronization
Signal (SYNC)
Input
Signal input for external square wave clock to control the output frequency and phase of
the waveform generated by the internal generator;
logic level, TTL-compatible;
Signal return common to signals, Trigger input, Synchronization Clock and Remote Inhibit;
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