STAMOS S-LS-88 Manual De Instrucciones página 36

EXTERNAL CONTROL PORTS (25, 26)
A- GND terminal
B- External channel trigger TRI1/TRI3
C- Terminal for remote compensation of channel CH2/CH4
D- Terminal for remote compensation of channel CH1/CH3
E- Channel CH2/CH4 parameter output adjustment (E+A)
F- External channel trigger TRI2/TRI4
G- Channel CH1/CH3 parameter output adjustment (G+A)
3.3.3. DEVICE OPERATING MODES
The device has two available methods of declaring output power. They
are: CH – constant output power mode and LIST – dynamic output power
mode.
CH (constant output power)