Starlight Xpress SXV-M25C - Manual (Page 29)

Handbook for the SXV-M25C Issue 1 June 2004
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reduce its resolution. However, generally, these are more useful for finding faint
objects, than for imaging, as the colour information is lost in all these modes.
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The SXV-M25C accessory ports
The SXV-M25C is provided with two ports for use with accessories. The Autoguider
output port is a 6 way RJ11 socket, which is compatible with the standard autoguider
input of most telescope mounts. It provides 4 active-low opto-isolator outputs and a
common return line, capable of sinking a minimum of 5mA per output. This socket
may be used for telescope control if the SXV-M25C is employed as an autoguider,
but is primarily intended to be the control output for the optional add-on autoguider
camera head, available for use with the SXV-M25C.
The high density parallel port socket provides both control and power for the add-on
autoguider, but also includes a pair of serial ports for use with other devices.