Bias Q5 User Guide V1.0
Page 17
All circular back illuminated buttons provide status
information. The CENTER of each channel button
provides status information about the OUTPUT signal.
Center color
OUTPUT indicators
Center color
OUTPUT indicators
color
status
color
status
blue
Channel
ready
orange
MUTE
OUTPUT
yellow
Limiter
active
orange
blinking
MUTE
INPUT
The RING of each channel button provides
status information about the INPUT signal.
Ring color
INPUT indicators
color
status
white
blinking
(center blue)
Input signal presence
red
Input signal clipping
Channel fault and Armonía callback are as-
sociated to the following LED signals.
color
status
red blinking
(center and ring)
Channel fault
blinking / all channels
(center and ring)
Unit answering to
Armonía callback
The central button light on when the system is in standby
mode or in case of failure in the power supply unit:
Ring color
CENTRAL button
color
status
white
pulsing
(all LEDs off)
System powered
Standby mode
red
pulsing
(normal operating)
fan fault detected
(output stage side fan)
Center color
CENTRAL button
color
status
red
blinking
power supply or PSU fan
fault detected
yellow
blinking
power supply
temperature protection active
7 LED chart
Bias Q5 amplifier platforms support linear daisy-
chain, star and loop network topologies; in a daisy-
chained network the PC with Armonía Pro Audio
Suite must always be at one end of the chain.
Be aware that daisy-chaining does not guarantee reliability
in production environment, since any fault may yield
to network sectioning and loss of system control.
When efficiency and reliability are paramount, a
redundant network topology is advisable. In order
to exploit the Dante features, only star and open
daisy-chain network topology are allowed.
8.1 IP addressing
Factory default network settings are DHCP/AutoIP, in order
for the amplifier platform to self-configure when connected
to an existing LAN or PC. Fixed IP policy can also be
adopted and configured through Armonía Pro Audio Suite.
If a DHCP server is not active within the network, the
amplifier platform initiates a stateless address auto-
configuration (i.e. Zero-configuration networking
methodology – Zeroconf): it self assigns a local
numeric network address (of the type 169.254.x.y –
172.31.*.* for the secondary network if present – with
a subnet mask 255.255.0.0) and automatically
distributes and resolves the hostnames of networked
devices. For setting a static IP address, please refer
to the Armonía Pro Audio Suite user guide.
8.1.1 IP addressing troubleshooting
When connecting the Bias Q5 to a network
environment it may happen that Armonía Pro Audio
Suite does not discover or import the amplifier.
Usually this is a problem of IP addressing: both Armonia and
the Bias Q5 must belong to the same subnet. If a DHCP
server is present on the network and a Bias Q5 amplifier
platform is in AUTO IP, networking may become unstable.
As a rule of thumb, turn the DHCP server
on before connecting the amplifiers.
IP addressing of a Bias Q5 amplifier is established during
the bootstrap: when the Bias Q5 amplifier platform
discovers a DHCP server on the network during the startup,
it negotiates the networking parameters. If the Bias Q5
amplifier platform does not reveal a DHCP server on the
network during the startup, it set itself in AUTO IP mode.
8 Networking