iOptron CEM40 User Manual

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Figure 6. ST-4 Compatible Guiding Port Wiring
2.3.3. Other Ports on a CEM40/CEM40EC Mount
Power Panel on Rear of RA axis
Figure 7. CEM40G Power Panel on Rear of RA axis
 POWER (I/O): Power Switch
 DC 12V 5A: DC power socket to power the mount (2.5mmX5.5mm, center positive)
 USB2.0: USB input port to connect to iPolar, iGuider, USB 2.0 Port on dovetail saddle, as well as
mount computer control and firmware upgrade.
Ports on the Dovetail Saddle
Figure 8. Ports on a CEM40/CEM40EC dovetail saddle
On the back of the dovetail saddle, there are following ports:
 ST-4: ST-4 compatible autoguiding port. The wiring is shown in Figure 6;
 USB: 2X USB2.0 ports with standard type A connectors for connecting accessory;
 DC12V 3A: 2X DC12V power outlet (2.1mmX5.5mm, center positive, max. current 3A in total) for
powering accessories such as CCD cameras, filter wheels, or electric focusers

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