Manual

DRAWI NG NO. DATE PAGE
OF
STUDI O TECHNOLOGI ES, I NC.
4- WI RE ANALOG AUDI O I NTERFACE
BLOCK DI AGRAM
DUAL 2- WI RE ANALOG AUDI O TO
MODEL 47A
0202 09/ 24/ 14 32039
+36V
STATUS LEDS
I EC 320 C14 I NLET
50/ 60Hz OPERATI ON
100- 240V
AC MAI NS I NPUT
TYPI CAL OF 9
SWI TCHES
TYPI CAL OF 12
CONFI GURATI ON
AUTO NULL I NTERFACE 1
AUTO NULL I NTERFACE 2
SI NE- WAVE
TONE
GENERATOR
DETECTOR
LEVEL
FULL- WAVE
DUAL
4X1
SWI TCH
TONE1- 1
TONE2- 1
TONE1- 2
TONE2- 2
CH2- 2
CH1- 2
CH2- 1
CH1- 1
SUPPLY
POWER
+5V
- 5V
MEMORY
EEPROM
MI CRO-
CONTROLLER
I NTEGRATED
CI RCUI T
( MCU)
DATA SI GNALS TO DEVI CES
A/ D I NPUTS
POWER
SUPPLY
FUSE
I NPUTS*
* CONNECTOR LOCATED ON PRI NTED CI RCUI T BOARD ASSEMBLY
CONTROL
REMOTE
+
1
-
-
2
+
+
3
-
36V,
50W
+3. 3V