INTEGRA III SYSTEM
PROTECH AUDIO
®
Page 3
CONNECTOR & TRIMPOT DRAWING
MODEL 589 AUDIO CONTROLLED SWITCH CARD
MODELS 857B & 858B BACKPLANE CONNECTIONS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
(REMOTE POT ARM)
INPUT HI
INPUT LO
K1 ARM B
OUTPUT HI
OUTPUT LO
(REMOTE POT HI)
K1 N/C A/CMOS IN A
K1 N/C B/CMOS IN B
K1 N/O B/CMOS OUT B
K1 ARM A
GROUND
K1 N/O A/CMOS OUT A
(REMOTE POT LO)
GROUND
Mic In
Line In
Remote Pot
On-Board Pot
S1
S2
S3
Relay
Cmos
Delay
Threshold
Gain
CW = Longer delay
CW = Higher Threshold
CW = More gain
K1
T1
T2
