Orban OPTIMOD-FM 8700, Operating Manual

Page: 42 / 390

1-12
INTRODUCTION ORBAN MODEL 8700i
If you need to use both the digital and analog composite outputs, you must split the
outputs of your SCA generators with Y cables so that each generator output drives
one digitized SCA input and one non-digitized SCA input.
Wordclock/10 MHz Sync Reference Input
The sync reference input (labeled R
EF
I
N
) appears on a female BNC jack on the rear
panel. It is available only on MPX hardware. It accepts a 1x 5V p-p squarewave
wordclock signal at 32, 44.1, 48, 88.2, or 96 kHz, or a 10 MHz sinewave or
squarewave signal, 0.5 to 5 V peak. 10 MHz is a common output frequency produced
by GPS and rubidium frequency standards. You can configure the 8700i to lock its 19
kHz pilot tone and output sample frequency to this input.
When a valid reference signal is applied to this input, it locks the Optimod’s Internal
DSP clock to this input, so if a given AES3 L/R output’s sync source is set to
I
NTERNAL
,
the sample frequency at that output will be locked to this reference signal.
Do not apply an AES3 signal to this input.
Remote Control Interface
The Remote Control Interface is a set of eight optically isolated inputs on a DB-25
connector that can be activated by 5-12V DC. They can control various functions of
the 8700i. These functions are listed in step 2 on page 2-61.
Computer Interface
On the rear panel of the 8700i are serial ports and Ethernet ports. These computer
interfaces support remote control and metering, downloading software upgrades,
and audio-over-IP connectivity.
Each 8700i package ships with 8700i PC Remote software, a program for any IBM-
compatible PC with 1024x768 graphics or higher (running Microsoft Windows XP or
higher). 8700i PC permits you to adjust any 8700i preset by remote control, or to do
most anything else that you can do from the 8700i’s front panel controls. The pro-
gram displays all of the 8700i’s LCD meters on the computer screen to aid remote
adjustment.
RS-232 Serial Port (Serial 1)
8700i PC Remote can communicate via modem or direct connection between the
computer and the 8700i through their RS-232 serial ports. See
Administrative Opera-
tions Available via Serial Port #2 on page 2-50.
RS-232 Serial Port (Serial 2)
A computer (running a simple ASCII terminal program like HyperTerminal®) can
communicate with the 8700i through direct cable connection between their RS-232
serial ports. This connection can administer communications and security, and can
recall presets. It is also useful for connecting to automation systems that can emit