Relay; Audio Line - Black Box ControlBridge CB-PS-12V User Manual

Chapter 5: Connecting

5.7 Relay

This port provides one isolated low voltage relay. Each relay contact closure is rated 24 V / 0.5 A.
Normally Closed (NC) and Normally Open (NO) contacts as well as Common (C) contact of each relay can be used. The
Normally Closed (NC) position is the state of the relay when it is not turned on (energized).
Connector pin out
3-pin 3.5 mm
NC C NO

5.8 Audio Line

IN
This connector provides unbalanced line level audio.
Connector pinout
3-pin 3.5 mm
L G R
Page 36
Relay open
NC
C
NO
Table 5-19. Relay connnector pinout.
Pin Description
NC Relay Contact Normally Closed
C Relay Contact Common
NO Relay Contact Normally Open
Table 5-20. Audio line in connector pinout.
Pin Signal
L Left
G GND
R Right
877-877-2269 | blackbox.com
Relay closed
NC
C
NO
Figure 5-13. Relay.
RELAY
AUDIO LINE IN
Description
Left channel input
Ground
Right channel input