Transcript
AX3700
auto amplifier changeover
6 Duty / 1 Standby Auto Amplifier Changeover Panel
Amperes AX3700 offers a great flexibility and simplicity in cabling for auto amplifier fault changeover system with its combination of amplifier fault sensor modules and changeover panel in a box. The internally generated Pilot Tone and sensory circuit shall detect any faulty duty amplifier and would initiate a changeover process. AX3700 has been optimised for faster fault detection and changeover as compared with AS4000 modules. Pilot tones are generated at intervals to avoid constant loading of power amplifiers.
amplifier changeover & monitoring
Changeover are performed at both input and output sections, making it suitable for application in a matrix system. At any one time, only a failed duty unit shall be replaced by a standby amp, to avoid overloading.
technical specifications
Features Cater for 6 duty and 1 standby
Operating voltage
24V DC 1 A via PS9400 PSU
Expandable for 1 standby to cater for more than 6 duty amps.
Power consumption
7.2 W
Built in Pilot Tone generator, transmit at intervals and senses at
Input signal
6 ch. balanced line signal
sequence to protect amplifiers
Input impedance
10 K Ohm
Overloading protection by allowing only a single take over
Audio output gain
Unity
Prioritised changeover which higher numbered amplifier shall be
Pilot tone interval
10 secs / channel
preferred for take over if more than two units are down
Pilot tone frequency
20 KHz ( +/- 5% )
Shorter fault detection time from 10 to 25 seconds
Detection line
70 / 100 V line
Changeover at input and output section simultaneously ; suitable
Detection level
50 V rms
for matrix system installations
Failure detection time
10 ~ 25 seconds
Input link switch ; making connection of sources easier
Failure recovery time
20 seconds max
Channel isolation switch for unused or un-monitored channel
Zone load rating
400W / 100V line
Individual channel status indicators ; normal, fault and changeover
Status indications
Normal ; Fault ; Changeover
Changeover alert
Buzzer with switch
Changeover section
Input and Output simultaneously
Dimensions (WxHxD)
482 x 88 x 150 mm
Weight
3.4 kg
application schematic INPUT SOURCES MIN
MAX
SIG IN
MIN
CH5
MAX
MIN
SIG IN
CH6
MAX
SIG IN
MIN
SOURCE
MAX
SIG IN
MIN
EXT INPUT
MAX
CHIME
MAX
MIN
OFF
MASTER
TONE CTRL
SELECT
POWER
TREBLE
BASS
MIN
O
AUX
MAX
SIG IN
MUSIC SOURCE
24V DC overriding
MIC
TEST
FIRE
SIREN ACTIVATE
AM 6000
POWER
AX3700
PROTECT SIGNAL -10 dB
NORMAL
POWER
FAULT
AX 3700
CLIP
AMP/LINE FAULT ALERT
PILOT TONE ACTIVE
6 7 SPEAKER ZONE SELECT
120 Watts
POWER
I O
1
100V
PA 2120 POWER
CHANGEOVER
SIGNAL -40 dB
AMP. NUMBER
1
2
3
4
5
6
S/BY
BUZZER ON / OFF
4
5
PA 2120
VOL CTRL
ALL CALL
audio
DUTY AMP
ZONE SELECTOR
I
CASS CD
MAX
MIXER
SIG IN
12
E/M PANEL
MAX
11
CH4
TUNER
MIN
SIG IN
10
CH3
OFF
MAX
9
CH2
MIN
MIN
SIG IN
8
CH1
MX 2122
OVERRIDE
1
2
3
1
100V
6
s/by
ZS 5121
6
audio + PT
DUTY AMP
SPEAKERS
PA 2120 120 Watts
POWER POWER
PA 2120
I
PROTECT
O
SIGNAL -10 dB
CLIP
24V DC overriding
100V
SIGNAL -40 dB
packing information
PA 2120 120 Watts
POWER POWER
PA 2120
I
PROTECT
O
SIGNAL -10 dB
CLIP SIGNAL -40 dB
100V
STANDBY AMP
rear view
Carton : 555 (W) x 165 (H) x 295 (D) mm Weight : 4.2 kg Qty : 1 units / carton
AUDIO SIGNAL INPUTS / OUTPUTS
AX3700 AMP. AUTO FAULT CHANGE OVER
Cascade AX3700 is more than 6 duty amps are installed
CHANNEL 6 +
-
SIGNAL LINK
INPUT
OUTPUT
G
+
-
CHANNEL 5 INPUT
OUTPUT
LINK OPEN +
-
G
+
-
CHANNEL 4
SIGNAL LINK
+
-
G
+
CHANNEL 3
SIGNAL LINK
INPUT
OUTPUT
LINK OPEN
-
INPUT
OUTPUT
LINK OPEN
+
-
G
+
-
SIGNAL LINK
CHANNEL 2 INPUT
OUTPUT
LINK OPEN +
-
G
+
-
SIGNAL LINK
CHANNEL 1 OUTPUT
LINK OPEN +
-
INPUT
G
+
-
STANDBY FAULT CONT. OUTPUT 3A NO MAX + - G INPUT SIGNAL DO NOT SWITCH TO LINK WHEN DIFFERENT AUDIO SOURCES ARE USED FOR THE ADJACENT CHANNEL
CHAN. 1 ON
CHAN. 2 ON
CHAN. 3 ON
CHAN. 4 ON
CHAN. 5 ON
SWITCH TO OFF FOR UNUSED CHANNEL AMPLIFIER 70/100V LINE INPUTS/OUTPUTS
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CHANNEL / AMP. DETECTION SWITCHES
CHAN. 6 ON
HIGH
CASCADE RS 485 LOW
IN+
STANDBY AMP IN-
IN-
IN+
OUT+
CHANNEL 1 OUT-
IN-
IN+
OUT+
CHANNEL 2 OUT-
IN+
IN-
OUT+
CHANNEL 3 OUT-
IN +
IN -
OUT -
CHANNEL 4 OUT +
IN+
IN-
OUT+
CHANNEL 5 OUT-
IN+
IN-
OUT-
OUT+
CHANNEL 6 DC 24V 0.5 A + -
A
B
AMP CONNECTIONS IN +/- --> FR. AMP OUTPUTS OUT +/- --> TO ZONE SELECTOR / SPEAKERS MAX LOAD / CH - 400W / 100V LINE CASCADE CONNECT ONLY ONE WIRE FOR CASCADE TO NEXT UNIT UNIT 1(LOW) --- UNIT 2(HIGH) PLEASE OBSERVE POLARITY
the emerging preference
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