For mechanical installation, see Mechanical Installation.
GSG Series simulators may be connected to any AC supply with a voltage rating of 100 to 240 V, at 50/60/400 Hz. The units automatically adjust themselves to the input line voltage. The maximum power draw is 40 W.
The secondary supply voltages are electronically protected against overload or short circuit. The primary line voltage side is protected by a fuse located on the power supply unit. The fuse rating covers the full voltage range. Consequently there is no need for the user to replace the fuse under any operating conditions, nor is it accessible from the outside.
Caution: If this fuse is blown, it is likely that the power supply is badly damaged. Do not replace the fuse. Send the GSG unit to your local Service Center.
DANGER! — Removing the cover for repair, maintenance and adjustment must be done by qualified and trained personnel only, who are fully aware of the hazards involved.
The warranty commitments are rendered void if unauthorized access to the interior of the instrument has taken place during the warranty period.
Grounding faults in the line voltage supply will make any instrument connected to it dangerous. Before connecting any unit to the power line, you must make sure that the protective ground functions correctly. Only then can a unit be connected to the power line and only by using a three-wire line cord. No other method of grounding is permitted. Extension cords must always have a protective ground conductor.
Caution: If a unit is moved from a cold to a warm environment, condensation may cause a shock hazard. Ensure, therefore, that the grounding requirements are strictly met.
DANGER! — Never interrupt the grounding cord. Any interruption of the protective ground connection inside or outside the instrument or disconnection of the protective ground terminal is likely to make the instrument dangerous.
Using any of the communication interfaces is not required for GSG to operate in a basic mode. The same applies to the outputs for 1PPS and 10 MHz, as well as the inputs EXT REF FREQ and EXT TRIG: Their usage is not compulsory for basic operation.
The minimum electrical configuration for any test layout requires only the power cord and an RF antenna cable—or an actual GNSS antennaPrior to using an antenna, educate yourself about possible interference problems your antenna may cause. See also the Section "Signal Power Level Considerations" below.—to connect the GSG unit to your receiver-under-test (using the front panel RF connector, see Front Panel.)