Crown IQ system AMB-5 Product Reference page 3

* System
@crown
®
dressable component on a Crown Bus
loop. The unit must have a valid loop
address. A valid address is:
• 1 to 250 set via 8 segment DIP
switch
• No other AMB on the same Crown
Bus data loop may have the same
address.
The Crown Bus is asynchronous with 8
data bits, 1 start bit, 1 stop bit, no par-
ity, and operates at 38400 baud. The
AMB is not a U-Code protocol compo-
nent.
Serial Port:
The serial port on this unit is a female
25 pin D-Shell. RS232 and RS422 are
supported with 8 Data bits, 1 start bit, 1
stop bit, no parity. Up to 19200 baud
supported. The serial port for the AMB
may be used for direct communication
with a PC such that the AMB serves as
interface:
• May serve as interface for up to
20 components connected to the
Crown Bus.
• Components supported include
other AMB units, SMX-6 mixers,
MPX-6 mixers, PIP-AP, PIP-APM,
PIP-APS, all MRX matrixers, and the
AMB-5 Manual or Automatic Operation
Manual Mode
"Real Time" Settings
®
Product Reference
AMB-5 Automatic Mixer (Page 3 of 5)
White 4700 Series EQ.
• No support for U-Code protocol.
Setup Switches:
• The IQ Address is set by an 8 seg-
ment DIP switch. Valid address values
are 1 to 250 (0 and 251-255 are reserved
for system usage).
• RS232/422 Standard switch must be
configured appropriately for use of the
serial port.
• Baud is adjustable via DIP switch up
to 19200. This setting must be config-
ured properly for use of the serial port.
• Parity is set ON or OFF and ODD or
EVEN via DIP switch. Normally set to
OFF, this setting only applies to use of
the serial port.
Memory Backup:
The unit is equipped with a recharge-
able battery. The unit has 60 day
memory backup on full charge.
COMPUTERIZED FEATURES
Monitoring:
Input audio level monitoring has a range
of –40 to +25 dB. Input level is sensed
between the preamp and VCAs for a
total of 6 sensors, one per input. The
output audio level is sensed at each
Gate
Priority
Input
Comp.
Auto
Level
Gate Count
Output Compressor
Automatic Mode Settings
output mix bus with a range of –40 to
+25 dB.
DSPI:
The Data Signal Presence Indicator
(DSPI) light on the front panel flashes to
indicate data traffic addressed to or from
the unit. This light may be forced on from
software.
Aux Port:
The aux port on the mixer is used to send
or receive a control voltage. From soft-
ware you may turn the aux output on or
off. IQ software is also able to sense the
status of the aux input and is capable of
taking independent action based on a
sensed input.
Bus Output Relays:
Audio bus outputs are identical to their
respective main outputs in every way
except for the addition of software con-
trolled isolation relays.
VCA Gain Control:
The heart of the AMB is its functionality
as an ambient noise controled automatic
mixer. Each of the five main inputs may
be routed to either or both outputs by
VCAs under processor control. The
noise sensing input (input 6) may also
be routed to output 2 under processor
control. The processor may, in turn, be
set up to control the VCAs routed to out-
put 1 using on board automatic intelli-
gence or may be controlled in real time
manually from software. The VCAs rout-
ing audio to output 2 are under manual
control only. The VCAs offer a control
range of –100 to +25 dB.
MANUAL MIXING IN REAL TIME
All setup for manual or automatic op-
eration is accomplished, at least initially,
with IQ software from a PC. The AMB
has a software switch that puts the unit
into a manual mode or an automatic
mode. When in manual mode you may
make changes from software that affect
VCA gain in real time. Gain may also be
manipulated in real time from alternate
control devices such as a Drone or a
third party control device (Ex. AMX,
Crestron, Interface Controls, etc.). Once
VCA gains are set from the PC (or con-
trol device) the processor maintains that
ASA SWITCH
ON
gain structure until it receives an instruc-
VCA Control
tion to change. In the manual mode the
Output Mix 1
automatic features such as compres-
OFF
VCA Control
sors are disabled. Functions other than
Output Mix 2