Instruction manual

Overview and Specifications
12
Instruction Manual – Precis DSP Matrix Switchers
Configuration and Control
Configuration Information
Precis DSP systems are pre-engineered to switch stereo audio for two configuration sizes (8x8 and 18x18).
Control Options
Precis DSP systems support two different protocols: BCS (as ASCII characters sent through the RS-232 serial port) and
TCP/IP (with external APWeb Server module). Several control options are available for Precis DSP systems.
AMX Control Devices
The Precis DSP is compatible with a number of AMX control devices. For control programming information, see the
instruction manual for the specific interface.
APGraphic EQ CrossBar
The APGraphic EQ software has a CrossBar (interface with crosspoints for switching) that can be used for ongoing
control after it is used for system setup.
IP Control Software
Precis DSP enclosures can be controlled using AMX software:
APControl 3.0 (Serial) – for control and scheduling
Runs on a PC connected to the CONTROL (RS-232) port on the Precis DSP
Download from www.amx.com (permissions required)
Uses a setup wizard; system parameters (VMs and I/O channels) must be entered
Operation information is in the Help file
APWeb Server (TCP/IP) – for control, diagnostics, and third-party access
Uses RS-232 port located on the enclosure for connecting to an APWeb Server Module
Accessed through a TCP/IP interface, such as, a web browser (e.g., Internet Explorer)
Setup and operation information are in the APWeb Server Module’s documentation at www.amx.com
Contact AMX regarding limitations and conditions for operating a Precis DSP on a company LAN (Local
Area Network)
BCS (Basic Control Structure) Protocol
The Precis DSP can be controlled with an external serial controller using BCS* protocol, a command language for
programming control operations and for diagnostic purposes.
Serial control (sends and receives ASCII characters)
Use the Control (RS-232 serial) port or use the USB Control port (as a virtual COM port); both are located on
the CPU
Commands can be entered into a termination emulation program on a PC
* For information on BCS commands, see the Instruction Manual – BCS Basic Control Structure Protocol at
www.amx.com
.
Third-Party Controllers
Third-party controllers connect to the CONTROL (RS-232) port on the enclosure’s rear. If using a third-party controller,
see the controller documentation for setup and operating instructions.
XNNet Protocol
Advanced programmers who want to design their own control programs can use XNNet protocol. The XNNet API
Communication Library that supports C, Java, and Visual Basic with examples of the XNNet protocol in use is available
at www.amx.com.