PAGE 8
Cascading AX3800
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
CASCADE
INPUT
OUTPUT
AMP. BYPASS
ADD
IN
STDBY
+IN
GND
-IN
+OUT
GND
-OUT
AMP6
+IN
GND
-IN
+OUT
GND
-OUT
AMP7
+IN
GND
-IN
+OUT
GND
-OUT
AMP8
+OUT
GND
-OUT
STDBY
A B
1
8
16
8
4
2
1
32 64 128
FAULT
NO
CONTACT
RS 485
LINK
OPEN
LINK
OPEN
LINK
OPEN
amperes electronics
another quality product from
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
CASCADE
INPUT
OUTPUT
AMP. BYPASS
ADD
IN
STDBY
+IN
GND
-IN
+OUT
GND
-OUT
AMP6
+IN
GND
-IN
+OUT
GND
-OUT
AMP7
+IN
GND
-IN
+OUT
GND
-OUT
AMP8
+OUT
GND
-OUT
STDBY
A B
1
8
16
8
4
2
1
32 64 128
FAULT
NO
CONTACT
RS 485
LINK
OPEN
LINK
OPEN
LINK
OPEN
amperes electronics
another quality product from
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
CASCADE
INPUT
OUTPUT
AMP. BYPASS
ADD
IN
STDBY
+IN
GND
-IN
+OUT
GND
-OUT
AMP6
+IN
GND
-IN
+OUT
GND
-OUT
AMP7
+IN
GND
-IN
+OUT
GND
-OUT
AMP8
+OUT
GND
-OUT
STDBY
A B
1
8
16
8
4
2
1
32 64 128
FAULT
NO
CONTACT
RS 485
LINK
OPEN
LINK
OPEN
LINK
OPEN
amperes electronics
another quality product from
When it is required that one standby amplifier to serve more than 8 duty units, AX3800 will need to be stacked up or
cascaded. The link between them has been made simpler using RJ45 connectors.
Unit # 1
Unit # 2
Unit # 3
Cat5e
Cat5e
To standby amplifier
audio input
From standby amplifier
100V output
Loop to next
AX3800
Loop to next
AX3800
Only the connections for standby
amplifiers are shown. Inputs and
outputs of duty amplifier are
shown in previous page
Highest priority
( Channel 1 )
Higher priority at Ch1 of
Unit 2, but lower than Unit
# 1
Lowest priority at Ch.8 of Unit 3.
We do not recommend more than 3 AX3800 to be cascaded, which means a standby amplifier will need to cater for
up to 24 duty amplifiers. This may interrupt the operation of overall system if more than one duty unit failed.
In cascade mode, Unit #1 shall have higher priority than Unit #2 and #3, while Unit #2 shall be on top of #3. This
means Ch.1 at Unit #1 shall have highest priority and Ch.8 at Unit #3 shall have the lowest.
In the situation where more than 2 duty failed, with lower priority channel is required to operate, switch the DIP Switch
at the one with higher priority to allow the lower unit to bypass.
Link all
inputs
Link all
inputs
AX3800 Auto Amplifier Fault Changeover