13
Figure 23.
Schematic diagram of the drive panel port circuitry.
2
3
4
1
5
6
7
8
HAND CONTROL
GND
Vpp+
RX(3.3V)
TX(3.3V)
2
3
4
1
5
6
AUTO GUIDE
GND
RA+
RA-
DEC+
DEC-
SNAP
Optoisolator
GND
GN
DV
pp+
POWER
Control Signal
Internal Circuit
GND
TRIGGER
accurate), thus this is a Permanent Period Error Correction
(PPEC). A user can train the mount by guiding either manu-
ally or electronically with autoguiding. For detailed instructions,
please refer to the relevant section in the SynScan hand con-
troller instruction manual.
6.3 Batch Exposure Function
The Sirius Pro mount is equipped with two SNAP ports that
can control the shutter of two DSLR cameras
(see Figure 22) .
Working with the SynScan hand controller’s “Camera Control”
function, you can set the number of exposures, exposure dura-
tion, and time between exposures for up to eight different sets
of exposures. For detailed information, refer to the SynScan
hand controller instruction manual.
suGGEstED accEssoriEs
We also suggest these optional accessories (sold separately):
Pier Extension: Ideal for use with long-tube refractor tele-
scopes and some Cassegrains -- and for tall people! -- the
optional 6.3" Pier Extension is a must-have. It raises the fo-
cuser and eyepiece of attached telescopes to a more conve-
nient height for some configurations. Instructions and hard-
ware included.
Polar Scope: For optimal tracking and GoTo performance
the Sirius Pro AZ/EQ-G can be polar-aligned with a soft-
ware-assisted polar alignment routine that doesn't require a
polar alignment scope. But for those who prefer using a polar
scope, the optional Orion Illuminated Polar Scope for Sirius
Pro Mount is available. It's an externally mounted, "dual-hemi-
sphere" polar scope, meaning it can be used for polar align-
ment in both northern and southern hemispheres. Instructions
included.
Summary of Contents for Sirius Pro AZ/EQ-G
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