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Chapter 3
Computer Cable
Power Supply
Master/Slave Cable
Audio Device (Optional)
18
The 6-foot, EIA RS-232C computer cable connects the control unit to the
host computer. Its 7-pin, mini-DIN end plugs into the control unit's rear
panel. Its 9-pin, D-sub end plugs into the computer's serial port. (Pin
assignments for the computer cable are listed in Appendix A.) If the 9-
pin plug doesn't fit your computer's serial port, use the 9- to 25-pin
adapter.
The computer cable provides data transmission rates of 1200 bps in 2D
mode and 19,200 bps in 3D mode at full duplex, with no echo.
The external power supply delivers DC power to the system via the
control unit. The power supply plugs into a 115-volt wall socket or a
power strip. The barrel end of the power supply cable plugs into the
Power connector in the control unit's rear panel. The system also
supports an optional 220V power supply.
The Master/Slave cable, which plugs into the control unit's Master/Slave
connector, connects up to four control units together. One of the cable's
four plugs is labeled "Master"; the other plugs are labeled "Slave."
Tighten each plug's screws to connect the Master/Slave cable securely
to each control unit connector.
You can connect your own audio processing device to the control unit's
Audio Out connector. An audio processing device allows you to
incorporate sound into 3D applications. (See Table A-1 in Appendix A
for the Audio Out pin assignments and signal names.)
Audio received by the top microphone of the receiver is amplified and
routed through the LINE_OUT pin of the Audio Out connector. The
EN_VOICE pin of the Audio Out connector is high when you press the
Suspend button and low when you release it. The EN_VOICE pin
provides support for "Push-to-Talk" applications.
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