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usb-nSTEP Instructions

Hardware Connection

1) Connect Stepper motor to usb-nSTEP using supplied VOICE cable. Do not

use DATA cables. VOICE cables can be identified by looking at the ends of

the cable. Color of wires are reversed comparing one end to the other.

2) Connect usb-nSTEP to external 12V DC using supplied power cable --

steppers will not work without 12V DC connected

3) Connect usb-nSTEP to PC usb port using supplied USB cable

4) Optional temperature probe plugs into 2.5mm jack next to usb socket on

usb-nSTEP.

BEFORE INSTALLING SOFTWARE

Make sure that your windows account has ADMIN privilege

as ADMIN privilege is required to install drivers in Windows

Software Installation

1) Download and install the ASCOM platform from

http://ascom-standards.org/index.htm

2) Go to http://www.astrogene1000.com/products/gcusb_nstep/gcusb_nstep.htm

3) Click on “INNO Based installer GCUSB-nSTEP ASCOM Driver” and OPEN

4) Double click on the “GCUSB_nSTEP Setup.exe” and run the exe

Summary of content (4 pages)

PAGE 1
usb-nSTEP Instructions Software Installation Hardware Connection 1) 2) 3) 4) Connect Stepper motor to usb-nSTEP using supplied VOICE cable. Do not use DATA cables. VOICE cables can be identified by looking at the ends of the cable. Color of wires are reversed comparing one end to the other.
PAGE 2
usb-nSTEP Instructions 5) Accept license agreement and proceed 6) Go Go to http://www.astrogene1000.com/products/gcusb_nstep/gcusb_nstep.htm 7) Download and save the “INF file, no code added” zip file, then double click the zip file to unzip. 12) Select PORTS (COM & LPT) in the Device Manager. USB to focus stepper controller (COM#) is displayed, with COM port assigned. You will need to know this COM port to setup the GCUSBnSTEP application.
PAGE 3
usb-nSTEP Instructions Control Window Temp: Displays the current temperature in degC or degF for the temperature probe is attached to the usb-nSTEP Auto Temperature Sensor Detected Saves the current position Manual The software will “check” this box if it detects that a temperature probe is connected to the usbnSTEP. If temp probe detected then you can choose to allow automatic temperature compensation. Goto Temperature compensation done once on demand.
PAGE 4
usb-nSTEP Instructions Focuser Settings Capabilities Maximum Position: Value is used by the Absolute Focuser Type (see below). Temperature Sensor Detected: If temperature probe is attached this box will be 'checked' and enable other menu items. Maximum Increment: Maximum number of “steps” to send to the nSTEP at one time. Generally used to limits the number of “moves” an ASCOM autofocus application can execute during each call to the usb-nSTEP ASCOM driver.