TechNotes

This TechNote describes the built-in functions available for creating Automation Control programs as described in APN007. Specifically it covers the syntax of each function and any program sequencing considerations necessary for proper operation.
This TechNote will cover two options for creating point-point routing links over an Internet Protocol (IP) connection, GRE and IPsec. General Routing Encapsulation (GRE) and Internet Protocol Security (IPSec) are tunneling protocols available on the Ctek SkyRouter. IPSec also provides authentication and encryption of the link and mechanisms for mutual authentication and the negotiation of cryptographic keys to be used to encrypt the session. Ctek’s SkyRouter supports 2 simultaneous GRE tunnels and up to 8 simultaneous IPSec tunnels.
This TechNote describes the administration and operation of the SkyRouter’s serial subsystem. The serial subsystem consists of hardware configuration screens for each of the serial interfaces, and packet assembler and disassembler features (PAD), which can be used to manage the transmission of serial data over IP based, cellular networks.
This TechNote will provide instructions on how to update the Ck418's Flash Memory using Ubuntu 12.04.2 LTS and 14.04 LTS.
This TechNote will provide instructions on how to create a VPN client to connect to Ctek using Windows 7 or VIsta
ThisTechNote is intended to provide the information that a commercial electrician will require to install the Remote Management System at a field site.
This TechNote covers the setup and operation of the SkyRouter’s geo-fencing feature. It also explains how the geo-fencing feature interfaces with Ctek’s Automation application and how Automation can be used to enhance and extend the geo-fencing capabilities. Geo-fencing application models examined include the native web browser interface (Section 3), an SMS managed interface (Section 4), a physical model based on a switch and LED indicator (Section 5), and a control model based on the SkyRouter’s XML interface (Section 6).
Previous models of Ctek’s SkyRouter have provided an automatic configuration facility as documented in TN013. The Ctek 4550 provides a simplified facility that supports configuration of both the router and the radio. The major differences between the 4550 facilities and those of previous models arise from the fact that the 4550 contains a multi-carrier radio.
Previous models of Ctek’s SkyRouter were designed and configured to operate on a single carrier’s network, or in the case of UMTS/HSPA models on a prescribed set of frequencies. Unlike these earlier models, the Ctek 4550 contains a multi-carrier, software defined radio that must be configured for proper operation on a specific network. Configuring the 4550 for network operation consists of three discrete evolutions, loading a firmware image, configuring and saving the installed radio firmware image, and activating the SkyRouter on a specific network.
All routine administration and configuration activity for the Ctek SkyRouter should be performed using the HTML (web) interface, either locally or remotely as required. However, there are a small number of infrequently used, yet important commands that are only available from a command line interface. The two most common methods of accessing the SkyRouter’s command line (shell) interface are secure shell (ssh) or telnet. Both are available on the SkyRouter. The remainder of this document assumes that you are connected to the SkyRouter through one of these interfaces.