Orban OPTIMOD-FM 8600Si, Operating Manual

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1-8
INTRODUCTION ORBAN MODEL 8600Si
To select “audio processor mode” or “stand-alone stereo encoder mode,” recall a
Factory or User Preset that uses this mode. Starting with V1.1 software, the 8600Si
will automatically cross-fade between modes. Note that an audio mute will still oc-
cur when switching to and from a “UL” (ultra-low-latency) preset because this also
requires DSP code to be reloaded.
User Presets
User Presets permit you to change a Factory Preset to suit your requirements and
then store those changes.
You can store more than 100 User Presets, limited only by available memory in your
8600Si (which will vary depending on the version of your 8600Si’s software). You can
give your preset a name up to 18 characters long.
User Presets cannot be created from scratch. You must always start by recalling a
Factory Preset. Make the changes and then store your modified preset as a User Pre-
set. You can also recall a previously created user preset, modify it, and save it again,
either overwriting the old version or saving under a new name. In all cases, the
original Factory Preset remains for you to return to if you wish.
User Presets inherit the structure of their parent Factory Presets (Five-Band, Two-
Band, Ultra-Low-Latency Five-Band, or Stand-Alone Stereo Encoder). The
only way
you can choose the structure of a User preset is to edit it from a Factory preset hav-
ing that structure (or to edit it from an older User Preset having the desired struc-
ture). You cannot change the structure that an existing User Preset uses.
User Presets are stored in non-volatile memory that does not require battery back-
up.
To Create or Save a User Preset on page 3-18 has more about User Presets.
Input/Output Configuration
The 8600Si offers:
•
One digital AES left/right input on XLR that can also be used as a sync reference
to lock the digital output sample rate and the 19 kHz pilot tone frequency.
•
One AES3id
1
input on BNC that can be used as an audio input in “ratings en-
coder Loopthrough mode.”
1 The AES-3id standard defines a 75-ohm BNC electrical variant of AES3. The speci-
fied voltage level is 1 volt peak to peak. Maximum cable length is 300 meters. This
standard is also documented by the Society of Motion Picture and Television Engi-
neers as SMPTE 276M. For short cable runs, it can usually be used to interface di-
rectly with AES3 inputs and outputs. For longer cable runs, it is wise to use a 110
Ω
⇔
75
Ω
balun transformer.