The NVM Link
Before calibrating the speaker circuits or when configuring the micro-DAU always remove the NVM link from
pins 1 and 2 on connector P17 and replace the link after speaker circuit calibration and micro-DAU
configuration.
To calibrate the Speaker circuits at the micro-DAU
Ensure the speaker circuits are connected to the terminals on the micro-DAU, the circuits may be calibrated
by pressing the CAL button.
"
Before calibrating the speaker circuits ensure the NVM link is removed from connector P17.
Commissioning information
micro Distributed Amplifier Unit
6
4188-781 issue 6_Part 2_ 08/10_micro DAU commission
P4
L1 01 L2 02
Audio
Status
I/R SENSOR
P17
LOOP
P1
N01 C1 NC1 NO2 C2 NC2
AUX RELAY CONTACTS
WH
GN
RED
BLK
0V
MICROPHONE
I/A
I/B O/A O/B
AUDIO LOOP
P2
A+ A- B+ B-
SPEAKERS
P3
B-CCT
P9
SW1
A-CCT
SW2
ENSURE
SPRING
FITTED
L3
L4
P2
P9
LD1
CAL
P5
P11
DISCHARGE
LED
P6
A
B
LOCAL
AUDIO
P17
P17
NVM protect - Enabled
NVM protect - Disabled
After the micro-DAU
is configured, insert the
NVM link across
pins 1-2 of P17 to
preserve the data at
the unit.
When the micro-DAU is
being configured, ensure
the NVM link is NOT
fitted across pins 1-2
of P17.
NVM Link
DISCHARGE LED
LD4 (Normally OFF)
Ensure the SPRING is fitted
to Switch SW2
CAL/FAULT
RESET
button
SW1
Micro-DAU PCB assembly
You can also calibrate the speaker
circuits by using the remote control.
micro-DAU PCB assembly
Switch On the Test Mode at the Control panel.
Press the
button on micro-DAU PCB to
calibrate both speaker circuits.
Start of calibration you will get single indication:
You may need to wait for up to 2 minutes
for the end of calibration.
The amber LEDs ‘A-CCT’ and ‘B-CCT’ are
lit and then extinguish during calibration with
a panel message ‘Speaker circuit restored’.
On completion ensure the panel Test Mode is
switched Off at the Control panel.
CAL
CAL/
Fault
Reset
x2
Audio Status
x2
- 2 flashes (single occurrence)
Key
