Orion ATLAS EQ-G User Manual download pdf (Page 11)

Attaching the GoTo Hand Controller

The Atlas EQ-G GoTo hand controller comes with two cables;

one for usage with the Atlas EQ-G mount, while the other is

for use with the Sirius EQ-G mount. Feel free to discard the

cable for the Sirius EQ-G, as it will not be needed.

The cable for the Atlas EQ-G mount has a large, serial con-

nector (DB-9) on one end and a smaller, modular connector

(RJ-45) on the other. Plug the modular connector of the hand

controller cable into the hand controller (Figure 10). Push the

connector into the jack until it clicks into place. Plug the serial

connector into the mount (Figure 11). Use the captive screws

to secure the serial connector in place.

The smaller modular jack on the hand controller (Figure 10)

is used for RS-232 communications between the Atlas EQ-G

mounts and a computer equipped with astronomy software

like Starry Night Pro (see “Linking with a Computer”). The 12V

DC power jack on the hand controller allows independent use

of the GoTo hand controller for users who wish to browse the

object database without connecting to the telescope mount

(Figure 10). The power jack is also used when updating the

firmware in the hand controller (see “Updating the GoTo Hand

Controller’s Firmware”).

The included GoTo hand controller bracket attaches to the

built-in notch in the tripod center support tray. To install the

hand controller bracket, simply line up the tab on the back of

the bracket with the notch in the tripod center support tray and

slide the bracket forward until it clicks into place (Figure 12).

You now have a place to put the GoTo hand controller while

you are viewing.

You can reduce the chances of getting your hand controller

cable tangled during use by installing the included wire clip.

The clip also prevents mechanical strain on the hand control-

ler cable when it is in use. The wire clip is adhesive backed for

easy attachment to any convenient location on the mount.

Powering the Atlas EQ-G Mount

The Atlas EQ-G should be powered by an 11V to 15V DC

power supply (tip positive) capable of producing continuous

current of a minimum 2 amps. We recommend using a por-

table rechargeable battery, like the Dynamo or Dynamo Pro

available from Orion.

If you are using a portable battery like the Orion Dynamo, use

the 12V DC power cable supplied with your mount (male ciga-

rette lighter plug on one end, standard 12V DC power plug on

other end) to connect the battery to the 12V DC power jack on

the mount (Figure 11). Make sure the Dynamo’s power switch

is in the “on” position after connecting. Then, to turn the mount

(and GoTo hand controller) on, simply press the switch on the

mount so it is in the “on” position.

Note: The power indicator LED on the mount (near the power

switch) will begin to flash when the battery power is low. When

the battery power is extremely low, the LED will flash rapidly.

Recharge or replace the battery as needed.

Figure 11. Atlas EQ-G mount faceplate.

Power indicator light

12V DC

power jack

Power

switch

Autoguider

modular

jack

Hand controller serial jack

Figure 10. Hand controller jacks.

Hand controller

modular jack

Computer interface

modular jack

12V DC power jack

Figure 12. Installing the hand controller bracket.

Notch

Tripod center

support tray

Hand controller

bracket

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Orion ATLAS EQ-G User Manual Page 11

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