Ethernet OEM Module Crestron eServer™
Web Browser Control of a Device Utilizing PC-based Web Server and Crestron CNX Gateway
Software
DEVICE
Ethernet
eServer
SIMPL+
LOGIC
ENGINE
RS-232
PC
Stored Files for
Web Server
CNX Gateway
Control
Control
Web Pages
Web
Browser
Another rationale for this configuration is if a device expects to utilize many
connections (more than five). The CNX gateway allows many more than five
simultaneous connections. Refer to the Software Development Kit & CNX Gateway
Operations Guide (latest revision of Doc. 5778) for additional CNX Gateway
information.
4. Custom Application Control of a Device Through the eServer Utilizing Crestron ActiveCNX Control Many manufacturers have spent years developing PC-based applications and would
like to use their existing tools that communicate via standard RS-232 with the
eServer. With relatively little work, such a configuration effectively makes their
tools "Internet ready". The ActiveCNX control, a free download component of the
Crestron e-control SDK, permits implementation of this configuration fairly easily.
Refer to the Active CNX Software Introduction & Tutorial manual (latest revision of
Doc. 5777) for additional information.
Many designers use Microsoft's serial control for doing low-level COM port
communications. Crestron ActiveCNX control has similar functions, events, and
properties. Therefore, it should be fairly easy to integrate with existing code. The
ActiveCNX control takes care of low-level Internet communications for a designer.
Custom Application Control of a Device Utilizing Crestron ActiveCNX Control
Ethernet
eServer
SIMPL+
LOGIC
ENGINE
RS-232
Custom PC Application
Control
ActiveCNX
Control
DEVICE
10 • Ethernet OEM Module: eServer™ Operations Guide - DOC. 8148