How do I power the RB Focus Gaius-S2, and are there any precautions?
The Gaius-S2 operates on 12V DC and accepts power via a single XT30 input connector. You can use a deep-cycle battery or a regulated AC-to-DC power supply capable of delivering up to 10 A. It is critical to ensure correct polarity when connecting your power source, as the Gaius-S2 has no reverse polarity protection. Reversing positive and negative could damage the unit.
Can the Gaius-S2 run a full imaging session with my specific equipment?
It has 2 USB 3.0 and 4 USB 2.0 ports, five 12V outputs and two PWM outputs (up to 10 A in total), and comes with N.I.N.A., PHD2 and plate solving software preconfigured. Check that your devices fit those ports and that their total current stays within 10 A.
What software is pre-installed on the Gaius-S2?
The Gaius-S2 comes with Windows 11 Pro. It is also pre-loaded and pre-configured with a suite of essential astrophotography software:
- N.I.N.A. (Nighttime Imaging 'N' Astronomy)
- PHD2 Guiding
- ASCOM Platform & RB Focus ASCOM Drivers
- EQMOD
- ASTAP & PlateSolve 2
- Stellarium
All ASCOM device outputs are pre-configured, making setup much faster.
How do I remotely access the RB Focus Gaius-S2?
You have three primary methods for remote access. You can connect it to your home network via its Wi-Fi 6 or 2.5 Gbit LAN port and access it like any other PC using remote desktop software. Alternatively, you can use its Wi-Fi Direct feature to create its own network in the field, allowing you to connect a laptop or tablet directly to it without needing a router.
How does the automatic dew heater control on the Gaius-S2 work?
The included sensor continuously measures ambient temperature and humidity. The Gaius-S2 uses this to calculate the dew point. Within your capture software (e.g., N.I.N.A.), you can set a rule to automatically turn on the two PWM dew heater ports when the air temperature drops to within a few degrees of the dew point, ensuring power is only used when condensation is an actual risk.
Can the Gaius-S2 automatically shut down my equipment after a sequence?
Yes. The Gaius-S2 is recognized as an ASCOM Switch device. In sequencing software like N.I.N.A. or Voyager, you can program an "end of sequence" instruction that tells the Gaius-S2 to shut down power to its 12V outputs. This lets you switch off your camera, mount and other gear automatically at the end of the session.
What information does the OLED screen on the Gaius-S2 display?
The built-in OLED screen provides a real-time dashboard of the system's vital statistics. This includes the total current power consumption (in Ah), the input voltage from your battery, and the current temperature and humidity readings from the external sensor. This is useful for monitoring your battery's health and diagnosing any power-related issues at the telescope.
How do I mount the RB Focus Gaius-S2 to my telescope?
Mount it on the telescope to keep cables short. No bracket is included; RB Focus sells a bracket for the Gaius-S2 that attaches to a Vixen or Losmandy dovetail.
Can I connect a monitor directly to the Gaius-S2?
Yes. The Gaius-S2 includes one HDMI port, allowing you to connect a monitor directly for initial setup or troubleshooting in the field. For normal use it is controlled remotely via Wi-Fi or LAN using remote desktop software.
