iOptron SkyGuider 3550A Instruction Manual page 20

The optional Go2Nova
character large LCD screen. It has function keys, direction keys and number keys on the front; a HBX
port (6-pin) and a serial port (4-pin) at the bottom.
3.4.1.1. Key Description:

MENU Key: Press "MENU" to enter the Main Menu.

BACK Key: Move back to the previous screen.

ENTER Key: Confirm an input, go to the next menu or select a choice.

Arrow (▲▼◄►) Keys: The arrow keys are used to control the mount movement. Press and
hold ◄(R.A.+), ►(R.A.-) to move a telescope along the RA direction. (▲ and ▼ buttons do
not work for mount movement.) They are also used to browse the menu or move the cursor
while in the menu.

Number Keys: Input numerical values. Also used to adjust R.A. slewing speeds. 1: 1X; 2:
2X; 3: 8X; 4: 16X; 5: 64X; 6: 128X; 7-9: MAX (144X).

HBX (Handbox) port: connect the HC to a mount using a 6 pin RJ11 cable.

Serial port: connect the HC to a Computer via a RS232 to 4 pin 4 wire (4P4C) RJ9 cable
(iOptron item# 8412) for hand controller firmware upgrade. The pin out of the serial port is
shown in Figure 27.
3.4.1.2. The LCD Screen
When the mount is turned on, the HC screen will be displayed as shown in Figure 28, after
company logo, HC model and mount type displayed. It displays the mount type, Current GuideRate
(0.50), TrackingRate (Sidereal), Mount Status (Track), R.A. Slew Speed (MAX), Current Time
(09:20:15) and N/S Hemisphere (N).
®
8408 hand controller (HC) shown in Figure 26 has a 4 line, 21
Figure 27. Serial port pin out on an 8408 hand controller
Figure 28. 8408 HC LCD Information Screen
20