Aes3 Digital Input And Output; Wordclock / Aes11Id Sync Input - Orban OPTIMOD 6300 Operating Manual

OPTIMOD 6300 DIGITAL

At the 6300's output (and at the output of other equipment in the system), do
not connect the cable's shield to the CHASSIS GROUND terminal (pin 1) on the
XLR-type connector. Instead, connect the shield to the chassis ground at the in-
put destination. Connect the red (or white) wire to the pin on the XLR-type con-
nector (#2 or #3) that is considered H
Connect the black wire to the pin on the XLR-type connector (#3 or #2) that is
considered L
OW

AES3 Digital Input and Output

There is one AES3 and two AES3 outputs. The program input and outputs are all
equipped with sample rate converters and can operate at 32, 44.1, 48, 88.2, and 96
kHz. You can force the output sample rate to be genlocked to signal appearing at
either the wordclock / AES11id input or the audio input. The output can also syn-
chronize to the 6300's internal clock.
Per the AES3 standard, each digital input or output line carries both the
left and right stereo channels. The connection is 110 balanced. The
AES3 standard specifies a maximum cable length of 100 meters. While
almost any balanced, shielded cable will work for relatively short runs (5
meters or less), longer runs require used of 110 balanced cable like
Belden 1800B, 1801B (plenum rated), multi-pair 180xF, 185xF, or 78xxA.
Single-pair category 5, 5e, and 6 Ethernet cable will also work well if you
do not require shielding. (In most cases, the tight balance of Category
5/5e/6 cable makes shielding unnecessary.)
The AES3id standard is best for very long cable runs (up to 1000 meters).
This specifies 75 unbalanced coaxial cable, terminated in male BNC
connectors. A 110/75 balun transformer is required to interface an
AES3id connection to your Optimod's digital program input or output.
Conversely, the wordclock / AES11id sync input is designed for 75 op-
eration.
The digital input clip level is fixed at 0 dB relative to the maximum digital
word. The maximum digital input will make the 6300 input meters dis-
play 0dB. The reference level is adjustable using the DI R
The sample rate of the 6300's peak limiters is 192 kHz. Because of "asyn-
chronous resampling," any output sample rate other than 48 or 96 kHz /
internal sync can introduce overshoots as large as 0.5 dB.
If you need to use an STL with 32 kHz sample rate (because that is all that
is available), you will achieve lowest overshoot by setting the 6300's in-
ternal bandwidth to 15 kHz. That way, the 6300's peak limiter operates
on a signal with 15 kHz bandwidth and subsequent sample rate conver-
sion will not add overshoot caused by spectral truncation.

Wordclock / AES11id Sync Input

The sync input accepts a standard 5V p-p squarewave wordclock signal or an
AES11id (75Ω) signal, selected in software. A menu item allows you to synchronize
the output sample frequency to the frequency present at the sync. The connector is
a female BNC with the shell grounded to chassis.
by the standards of your organization.
by the standards of your organization.
IGH
EF
INSTALLATION
control.
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