Specifications

31
POWER
RD COM
+
-
RD A
RD B
ZONE A
ZONE B
ZONE C
OFF ON
TALKBACK
RT
IN
RD C
LOCAL
BGM
ZONE A
+
-
ZONE B
+
-
ZONE C
LPBGM
VOLUME
LO PWR
HI PWR
OUTPUT
BGM
OUT IN
-
+
SUPRESSION DIODES
POWER
SUPPLY
12VDC
RELAY
RELAY
RELAY
ZONE A
ZONE B
ZONE C
GLOBL BGM
CONFIGURATION 15:
RELAY DRIVER OUTPUT
Each PCMZPM module has three relay driver outputs - RD A, RD B, and RD C - one for each speaker zone.
When a zone is activated, its relay driver is shorted to RD COM through an open collector transistor. These drivers can be used to
activate external relays to provide greater power capacity or to operate external equipment. The power supply for these relays must
be 12V DC or less. The total sink current per driver can not exceed 100mA.
SUPPRESSION DIODES