TC Electronic DB6, Руководство пользователя

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Setting up audio and syncing
English Manual (2014-03-05) 27
I/O Setup – DB6 AES
To set up audio, go to Frame / System / I/O / AES.
Use this page to…
– display information about incoming audio,
– set the sync signal source
– change Advanced AES settings.
I/O setup – AES page (DB6 AES)
AES section
Lock status indicator
Lock status states: Lock, No lock,
Freewheel, Internal, Bypassed
The Lock status indicator shows the overall ref-
erence clock status. The colors of the “LED” in
this field represent the Icon application warning/
error scheme, which is used for alarms on e.g.
Icon, the DB6 front UI, GPO and SNMP.
– “Lock” (green LED / OK): DB6 has obtained
lock to the reference signal set in the Sync
Source field.
– “No Lock” (red LED / Error): “No Lock” is typi-
cally displayed when there is no signal present
on the Input that the DB6 is set to lock to, or if
the incoming sample rate is outside the legal
range (48 kHz +1.7 % / -1.3 %) and the Clock
Fallback parameter is set to Halt.
– “Freewheel” (red LED / Error): “Freewheel” is
displayed when there is no signal present on
the Input that the DB6 is set to lock to, or if
the incoming sample rate is outside the legal
range (48 kHz +1.7 % / -1.3 %) and the Clock
Fallback is set to Freewheel.
– “Internal” (yellow LED / Warning): “Internal” is
displayed when DB6 is set to sync to its inter-
nal referenced master clock at 48.000 kHz.
– “Bypassed” (yellow LED / Warning): “By-
passed” is displayed when the DB6 hardware
bypass relay has been activated.
Sample Rate indicator
The Sample Rate indicator field displays the
sample rate of the sync source DB6 is currently
following. Sample rate is measured and dis-
played with 1 Hz precision (21 PPM @ 48 kHz).
AES Input State indicators
Indicator states: Green, yellow, grey
The AES Input State indicators show the status
of the AES inputs. States are displayed as fol-
lows:
– Green: A green “LED” indicates that a signal
is present and synchronous at the respective
input.
– Yellow: A yellow “LED” indicates that a signal
is present and running asynchronously rela-
tive to the sync source. This typically happens
when the upstream device is running at an in-
ternal master clock rate and is not locked to
the house clock.
– Grey: A grey “LED” indicates that no signal is
present at the respective input or that the in-
coming sample rate is outside the legal range
(48 kHz ±0.38 %).
Sync Source
Settings: AES 1/2, AES 3/4, AES 5/6, AES 7/8,
AES 9/10, AES 11/12, AES 13/14, AES 15/16
Use the Sync Source parameter to select the
signal source that DB6 should sync to.
When the Clock Master parameter is set to “In-
ternal”, the Sync Source setting is irrelevant.
However, you should be aware that you can use
this parameter to pre-select a sync source that
will be used when you switch DB6 AES directly
from Internal to External Sync.