ITC T-6245 - Block Diagram

VOLUME
CHIME
VOLUME
M1
1
8
CONSOL
GND
POWER
+24V
MAX485
CONTROL
SIGNAL
M1
NORMAL
ALARM
PRIORITY
VCC
GAIN
VOLUME
A 2
+48V
PHANTOM
MICRO
CHIME
SIGNAL MESSAGE 1 - 2 - 3
BASS
A 3
CONTROL
A 5
MUTE 4
ON/OFF
MUTE 4
A 4
VOLUME
MUSIC
VOLUME
MESSAGE
PLAY
MESSAGE 3
VOLUME
REC
CD
TAPE
TUNER
MIC
MUTE 2
A 1
MUTE 1
CONTROL
REC/PLAY
MESSAGE
ZONE 3 ZONE 6 ZONE 5 ZONE 4 ZONE 2 ZONE 1
TREBLE
MUTE 3
CONTROL ISD4003
REC
OUT VCC
PLAY
MESSAGE 1
PLAY
MESSAGE 2
PLAY STOP
MCU
OFF
123
1 TIME
CONTINUOS
RL1B RL2B
OUT +24 V zone 4 OUT +24 V zone 3 OUT +24 V zone 2 OUT +24 V zone 1 OUT -24 V com OUT +24 V zone 6 OUT +24 V zone 5
OUT RELE' ZONE CONSOL CONTACT (15)
COLD GND HOT GND COLD COLD COLD COLD HOT HOT HOT GND GND GND HOT
BALANCED
RL1A RL2A
OUT ZONE 1 CONTACT (21) OUT OPEN RELE' CONTACT (20) OUT PAGE 0 dB CONTACT (19) OUT ZONE 2 CONTACT (21) OUT ZONE 3 CONTACT (21)
LEVEL OUTPUT (VU METER)
RL3B RL4B RL5B RL6B
GND COLD GND HOT COLD COLD COLD HOT GND HOT GND HOT
RL3A RL4A RL5A RL6A
OUT ZONE 4 CONTACT (21) OUT ZONE 5 CONTACT (21) OUT ZONE 6 CONTACT (21) IN COM ZONE CONTACT (16) IN COM ZONE CONTACT (16)
COLD GND HOT GND COLD HOT
BALANCED BALANCED
OUT MUSIC 0 dB CONTACT (18) OUT MIX MUSIC-PAGE 0 dB CONTACT (17)
8. BLOCK DIAGRAM
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