Revision B • 7/00
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12
2 Installation
when the Studio warning output requires an ac-
tive low logic output.
Note:
Jumpering the solid-state relay to either
+5 Volts or Logic Ground defeats ground isola-
tion between the console and the warning lamp
interface.
Warning Lamp Connector Pin Definitions
Note:
Do not use the solid-state relay “contacts” to directly switch the AC line voltage to a lamp.
8-pin
connector
8
7
6
5
4
3
2
1
(wire insertion end
view)
PIN
SIGNAL
FUNCTION
1
Logic Ground
Console logic ground
2
+5 Logic
+5 volt supply
3
C/R Relay
Control Room Warning Lamp Interface “N/O relay contact”
4
C/R Relay
Control Room Warning Lamp Interface “C relay contact”
5
Logic Ground
Console logic ground
6
+5 Logic
+5 volt supply
7
Studio Relay
Studio Warning Lamp Interface “N/O relay contact”
8
Studio Relay
Studio Warning Lamp Interface “C relay contact”
Monitor Module
This example uses active high logic
To Control Room
Warning Lamp
V+12D
Int
e
rn
al L
ogic
Opto-relays can handle
up to 60 V at 350 mA
+5
Reg
+5 Logic
C/R Relay
C/R Relay
Logic Ground
+5 Logic
Studio Relay
Studio Relay
Logic Ground
IN4001
IN4001
+5 Volt Relay
+5 Volt Relay
To Studio
Warning Lamp
NC
C
NO
NC
C
NO
J6 2
J6 3
J6 4
J6 1
J6 6
J6 7
J6 8
J6 5
Simplified Schematic for the Warning Lamp Interface
