
System Control
The VNM EC 200 is used to configure and control a VN-Matrix system. When used as
part of a larger installation, it is likely that a third party control system integrates all of the
system equipment into a single control interface. The VNM EC 200 also uses Extron Simple
Instruction Set (SIS) commands from the front panel config connector to perform various
reset functions.
It also incorporates two methods of control to support this system architecture.
•
High Level Interface (HLI)
— The HLI is a control protocol that allows users to
interface their control system with the devices on a VN-Matrix network. This is the main
control protocol used with the VNM EC 200.
•
Command Line Interface (CLI)
— The CLI provides low level control of a VN-Matrix
device. This is the control protocol that is used by the system controller to communicate
with other VN-Matrix devices on the network. The CLI protocol contains a complex
instruction set and requires a thorough understanding of VN-Matrix devices and
their operation. This complexity makes the CLI unsuitable for most users with limited
knowledge of a VN-Matrix system.
NOTE:
The Command Line Interface protocol is not thoroughly documented in this
user guide.
This section provides information on:
•
•
•
•
HLI Overview
The HLI is positioned
between
the CLI and the user control system. The HLI manages the
underlying complexity of the CLI and presents a streamlined control method.
The HLI is accessed from the control computer over the VN-Matrix network or by direct
connection using the Remote RS-232 connector (see
on the rear panel of the VNM EC 200.
HLI commands are sent to the VN-Matrix system using the following programs:
•
Telnet (see
•
VNM EC 200 Web-based user interface (see
About the Web‑based User Interface
NOTE:
The commands detailed in the HLI command sections are commonly used to
communicate with devices on a VN-Matrix network and represent a subset of the HLI
command language.
VNM EC 200 • System Control
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Summary of Contents for VNM EC 200
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