17
Term
Definition
Wi-Fi
Wi-Fi - A family of wireless communication protocols, typically used for short range connection
between devices, designed as a sibling to Ethernet.
The CP4/5 can be connected to your computer using Wi-Fi in two ways; either having the computer connect to the Wi-Fi
Access Point of the CP4/5, or by having the CP4/5 connect to the network of a Wi-Fi router in Station Mode.
●
Access Point: By having the CP4/5 acting as an Access Point, there
is no need for other equipment, like a router. This is optimal for
connecting to the mount in the field with your smart-device or laptop,
and in some cases can be used in troubleshooting a CP4/5.
●
Station Mode: Routing the CP4/5 to a network with Station Mode is
optimal for observatories with lots of mounts using the Wi-Fi, so you
can connect your computer to the network and have all of the mounts
available. Further, having the CP4/5 connected to a network allows
you to protect the CP4/5 with your network security; in this way it is
harder for others to potentially access the CP4/5.
Access Point Configuration
Your CP4/5 has the capability of acting as a Wi-Fi access point. This is the default Wi-Fi setting when a new control box
is programmed at Astro-Physics. The access point setting will allow you to connect another wireless device to your CP4/5
even without the presence of a wireless router and established wireless network. As an access point, the CP4/5 must
then take on some of the responsibilities normally carried by the wireless router. This is why the access point mode is less
efficient than station mode. However, since a Wi-Fi router may not be available at a star party or at some locations, the
access point capability is quite a valuable asset.
We have already assigned an IP address for Access Point mode. That address is: 172.31.0.1 We suggest that you
not change this IP address unless you have a compelling reason to do so. Multiple CP4/5s in the same location will not
conflict with each other even though they share the same IP address. Remember that it is the network itself that is unique.
Because each network name will include the serial number, each CP4/5 creates a unique access port network, thus won't
conflict.
If you configure your Wi-Fi connection from a wireless device, start by joining the CP4/5's wireless Access Point network.
1. To connect to the CP4/5 through its Access Point, simply turn on the CP4/5 and wait about 30 seconds.
2. In your wireless device (laptop, smartphone, tablet, etc.), open the device's wireless settings page.
3. Find the network for the CP4/5 in your device's list. For a CP5, it will be named: GTOCP5_Net_X where the X at the
end represents the numeric portion of the GTOCP5's serial number without leading zeros.
4. Connect your device to the network. You will be prompted for a password. The default password that we have pro-
vided during our initial programming will be: Xadmin12345 where again, the X represents the numeric portion of the
serial number without leading zeros. For the GTOCP5 with the serial number CP5-0004, the password would be:
4admin12345
5. When the Wi-Fi connection is established, you can do one of the following:
a) Control the CP4/5 using telescope control apps. For apps that use a port number, like Sky Safari, use port number
23.
b) Open the CP4/5 home page in the device's browser.
i) In the browser’s URL address bar, enter the following IP address: 172.31.0.1 and then the equivalent of “En-
ter”.
ii) This will bring up the CP4/5 Main webpage just like the Ethernet version. From this page, you can move on to
the Change Network Connection or Advanced Wi-Fi pages. On these pages, you can choose the default Wi-Fi
connection, and you can change the Access Point Network Name if you wish.
It is important that you consider security when using your CP4/5 as an access point. We have provided a default password
that is reasonable for getting started. However, you may want to change it to something more secure
since anyone with
access to this manual and knowledge of your serial number can determine the factory default password.
The new
Access Point
IP Address
Access Point Network
Name ending in numeric
part of serial number
