Orban OPTIMOD 8400 - Computer Interface

OPTIMOD-FM INTRODUCTION
1-9
• Switch the stereo encoder to stereo, mono from left, mono from right, or mono from
sum audio input.
• Switch the 8400 to use either the analog input or the digital input.
• Reduce the stereo main and subchannel modulation to compensate for transmitter
overshoot and subcarrier inputs (SCAs).
The remote control of overshoot compensation and SCA modulation (see page
2-51) is not latching. You must supply a continuous current to the programmed
remote
input to hold the gain at its compensated level. Use the status outputs
of your transmitter and/or SCA generators to provide the switching signal so
the compensation will automatically follow the transmitter and/or subcarrier
generator on the air.
• Reset the 8400’s internal clock to the nearest hour or to midnight.
The functions of the eight inputs can be re-configured by the user via System
Setup Network/Remote. For example, if you are not using the stereo encoder,
the three inputs ordinarily dedicated to controlling the state of the stereo en-
coder can instead be re-configured to call three additional presets. See page 2-
51 for information on programming the remote control interface.
Computer Interface
On the rear panel of the 8400 is a serial port and a PC-Card port for interfacing to IBM-
compatible PCs. These computer interfaces support remote control and metering, and
downloading software upgrades.
Each 8400 package ships with 8400 PC Remote software, a program for any IBM-
compatible PC with VGA graphics or higher (running Microsoft Windows 98 or higher).
8400 PC permits you to adjust any 8400 preset by remote control, or to do most anything
else that you can do from the 8400’s front panel controls. The program displays all of the
8400’s LCD meters on the computer screen to aid remote adjustment.
RS-232 Serial Port (Serial 1)
8400 PC Remote can communicate via modem or direct connection between the com-
puter and the 8400 through their RS-232 serial ports.
RS-232 Serial Port (Serial 2)
A computer (running a simple ASCII terminal program like Hyperterminal®) can com-
municate with the 8400 through direct cable connection between their RS-232 serial
ports. This connection can administer communications and security, and can recall pre-
sets.
PC-Card Port (for Ethernet Cards)
An optional Ethernet PC card can be plugged into the PC-Card Port on the rear panel of
the 8400 to connect to any Ethernet-based network that supports the TCP/IP protocol.
The Ethernet card is supplied standard on 8400/PD units.