Coastcom D/I Mux III System User Manual

Chapter 3. Installation
78
Common Control Unit
The Common Control Unit (CCU) is the major logic control for the D/I Mux III system. The CCU
directs the other common equipment, and is the link to the system control (COM) port. See
Figure 3-19 for a front and side view of the CCU.
Figure 3-25. Common Control Unit - Front and Side View
(Part Number 30305-106, 30305-108, and 30305-110)
Control Terminal
The D/I Mux III is designed to be controlled with any asynchronous terminal or terminal
emulation software. Configuration through the COM port offers many more options, and
far greater flexibility, than working with option switches.
Setting the Data Rate and Communications Protocol
The control terminal or device should be set up with the following asynchronous
communications protocol when the 1200 bps data rate is selected using jumper W1.
• 1200 bps data rate, 8 data bits, 1 stop bit, no parity.
When using Non-Volatile Random Access Memory (NVRAM) for data rate selection, the
rate can be changed after communication has been established. It may be easiest to
initiate communication at 1200 bps and then move jumper W1 to the NVRAM position
factory default. The same asynchronous communications protocol would be observed for
the other data rates of: 300, 2400, 4800, 9600, 19200 bps. For example, to set the data
rate to 9600 bps set the terminal to:

Coastcom D/I Mux III System Specifications

General

Brand	Coastcom
Model	D/I Mux III System
Category	Multiplexer
Language	English