iOptron CEM40 User Manual

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Figure 10. Cable/Ports connection of a CEM40-NUC
 DC OUTX3：DC outlets，total current 5A, 2.1/5.5 mm plug, powered by cable management
input
 GUIDE：Guiding port, support ST-4 guiding device/camera
Suggested Intel NUC
Those NUC with thickness less than 38mm with be fit onto the mount without interference with the
mount body, such as Intel Frost Canyon or Tiger Canyon with “Slim” K chassis. Please double check your
NUC’s mounting holes.
2.3.5. Pass-through Hole
There is a hole on dovetail saddle that allows a user to run his own cables down through the mount
to the bottom of the DEC axle.
Figure 11. Openings for custom cable management

iOptron CEM40 Specifications

General

Mount	Center-balanced Equatorial Mount (CEM)
Structure Material	All metal, CNC machined
Exterior finish	Anodized red/black
Level indicator	Level bubble
Dovetail saddle	8" Losmandy D & Vixen
Hand Controller	Go2Nova® HC, 212, 000 objects database, star recognition
Cable management	Yes
Tripod	LiteRoc 1.75" Stainless Steel(7kg), optional tri-pier
Max payload*	40 lb (18kg), exclude counterweight
Payload/Mount weight ratio	2.28:1
PEC	PPEC/Real time PEC
Tracking accuracy (PE)**	<±7.5 arcsec p-p (CEM40, CEM40G), or <0.3 arcsec RMS (CEM40EC)
Motor resolution	0.08 arc seconds
Slew speed	1×, 2×, 8×, 16×, 64×, 128×, 256×, 512×, MAX(~4.5°/sec)
Latitude adjustment range	0°~ 60° (special CW shaft mounting if <10° )
Azimuth adjustment range	± 6°
Operation temperature	-10°C ~ +40°C
Right Ascension worm wheel	Φ110mm, 216 teeth aluminum
Declination worm wheel	Φ110mm, 216 teeth aluminum
Counterweight shaft	Φ28X280 mm, Stainless Steel (1.2 kg)
Counterweight	11 lb (5 kg) X1
Motor drive	Precision stepper motor, 1.8º/128X micro-step
Meridian treatment	Stop (0-14° pass), auto flip
Power consumption	0.6A(Tracking), 0.9A(GOTO)
Power requirement	12V DC 5A
AC adapter	100V ~ 240V (included, indoor use only)
Polar Scope	Internal iPolarTM electronic polar scope
GPS	Yes
WIFI	External (optional)
Guiding scope/camera	Built in guiding scope and camera, iGuiderTM (CEM40G)
Autoguide port	ST-4
Communication port	USB Port (on mount)
PC computer control	Yes (ASCOM)
Warranty	Two year limited

Weight and Dimensions

Mount weight	17.4 lb (7.9kg)
Mount base size	Φ120 mm