AMX Precis LT Instruction Manual page 24

Installation & Setup
Attaching Serial Controllers
An external serial controller is any device that can send and receive ASCII code over an RS-232
(null modem) serial cable attached to the Control port on the rear of the enclosure. PCs are common
serial controllers. Once a PC is attached to the Precis LT, the system can be controlled by running
APControl software on the attached PC (see the AMX AutoPatch CD). The system can also be controlled
by entering BCS commands into a terminal emulation program (e.g., HyperTerminal). For information
on BCS commands, see the BCS Protocol Instruction Manual on the AMX AutoPatch CD or at
www.amx.com.
PC Requirements for APControl 3.0
PC Requirements for BCS
Windows XP Professional
RS-232 Pin Diagram
FIG. 7
RS-232 null modem pin diagram, no hardware flow control
To establish external serial control:
1. Use a null modem cable that matches the pin diagram in FIG. 7 for RS-232 without hardware flow
control. AMX AutoPatch equipment requires pins 2, 3, and 5 only.
2.
Plug one end of the null modem serial cable into the Control port on the enclosure (FIG. 8).
FIG. 8
Attach null modem serial cable to Control port
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Windows XP Professional or Windows 2000
Java Runtime Environment (JRE): v1.4.2 or the latest version
Minimum Hardware: 166 MHz, 128 MB RAM, 20 MB free disk space, 800x600 display
Recommended Hardware: 2.0 GHz, 512 MB RAM, 20 MB free disk space,
1280x1024 display
Serial port
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or Windows 2000
Terminal emulation program
Serial port
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Precis LT Instruction Manual