Connections
Front View
SD Card Slots
Diagnostic LEDs
Optional Modules
RESET
Button
Rear View
AUDIO
3.5mm JACKS
Serial RS-232
DB-9P
Power
PTT Relay
Contacts
SPEAKERS
OUT
LINE IN LINE OUT PHONES
Contacts
25 & 26
Up / Down
Volume Buttons
MAIN
DOWN UP
CFSound-IV
Ethernet
Micro
USB
Main Connector
Most of the connections to the CFSound-IV are supplied to the unit with a ten pin, 2-piece pluggable
terminal block style connector at
Main
.
Power Supply Connection
The CFSound-IV requires a regulated or unregulated voltage of 10V to 18V DC.
Voltages above 18VDC will damage the unit.
The unit has resettable fusing internally to protect the Power input. Should the fuse trip, remove power,
correct the fault, wait a minute for the thermal fuse to cool and reset, then, re-apply power. The non-OEM
version of the CFSound-IV is supplied with a 120-240VAC 50/60Hz wall mounted transformer rated at
15VDC @ 1.6A.
ACS supplies different versions of the wall-mounted transformer power supply for the CFSound-IV. The
designated positive lead which should be connected to pin 9 of the
Main
connector with the other negative or
ground lead connected to pin 10.
Built-in Contacts Connection
The Push-To-Talk (PTT) relay dry contact output on the
Main
connector may be activated whenever a
sound is playing. The contact output is implemented with a relay whose contacts are
rated at
1A @ 30VDC
maximum
. The Common and Normally Open relay contacts are available on the
Main
connector.
The contact inputs on the
Main
connector appear logically to the CFSound-IV as Contact #25 & #26,
and may be activated by momentarily applying ground to the Input Contact #xx pin on the
Main
connector.
The contact inputs are implemented with an optocoupler. The Cathodes of the LEDs in the optocoupler are
connected to the Contact #25 and #26 Input pins. The Anodes of the LEDs in the optocoupler are connected
