Moravian Instruments G2 Series Mark II User Manual page 6

3. Support for x64 based Apple Macintosh computers is also
included.
Only certain software packages are currently supported on Mac.
G2 cameras require at last one free USB 2.0 port to communicate with a
host PC.
A simple and cheap device called "USB hub" can expand number of
available USB port. Typical USB hub occupies one computer USB port
and offers four or seven additional USB ports. Make sure the USB hub
is USB 2.0 high-speed compatible.
Alternatively, it is possible to use the "Gx Camera Ethernet Adapter"
device. This device can connect up to four Gx cameras of any type (not only
G2, but also G0, G1, G3 and G4) and offers 1 Gbps and 10/100 Mbps
Ethernet interface for direct connection to the host PC. Because the PC
then uses TCP/IP protocol to communicate with the cameras, it is possible
to insert WiFi adapter or other networking device to the communication
path.
Please note while the USB standard allows usage of cable no longer
than approx. 5 meters, the TCP/IP communication protocol used to
connect the camera over the Ethernet adapter is routable, so the
distance between camera setup and the host PC is virtually unlimited.
The G2 cameras need an external power supply to operate. It is not
possible to run the camera from the power lines provided by the USB
cable, which is common for webcams or very simple imagers. G2 cameras
integrate highly efficient CCD chip cooling, shutter and possibly filter
wheel, so their power requirements significantly exceed USB line power
capabilities. On the other side separate power source eliminates problems
with voltage drop on long USB cables or with drawing of laptop batteries
etc.
Also note the camera must be connected to some optical system (e.g. the
telescope) to capture images. The camera is designed for long exposures,
necessary to acquire the light from faint objects. If you plan to use the
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