www.advancedco.com
2
These instructions cover the installation of the AV-V70-KIT (70Vrms Speaker Circuit Interface Card and Audio
Converter Transformer) to an Advanced AV-V70 universal audio converter.
Caution: Before installing, servicing or removing any printed circuit boards / transformers remove all
sources of power.
This equipment is constructed with static sensitive components. Observe anti-static precautions
at all times when handling printed circuit boards. Wear an anti-static ground strap connected to
panel enclosure earth ground.
Installation (see figure 1):
[1] Carefully place the new Audio Converter Transformer (XFRM #2) over the studs above the existing/original AV-
V70 Audio Converter Transformer (XFRM #1). Place the provided washer and lock washer over each stud and
secure with the provided nuts.
[2] Remove the four screws securing the original AV-V70 70Vrms Speaker Circuit Interface Card and replace with
the provided four standoffs
[3] Secure the new 70Vrms Speaker Circuit Interface Card to the installed four standoffs with the four previously
removed screws.
[4] Wire the black wires, attached to the new Audio Converter Transformer (XFRM #2) to the Audio Transformer
25V terminals on the new 70Vrms Speaker Circuit Interface Card.
[5] Wire the red wires, attached to the new Audio Converter Transformer (XFRM #2) to the Audio Transformer 70V
terminals on the new 70Vrms Speaker Circuit Interface Card.
Trbl #2 LED Wiring (see figure 1):
[1] Connect the black end of the provided two pin cable assembly to the two pins labeled Remote LED
Connections Trouble, located on the new 70Vrms Speaker Circuit Interface Card. As this is not a keyed
connection, ensure the black wire of the two pin cable is installed on the K pin of the 70Vrms Speaker Circuit
Interface Card.
[2] Connect the other end (white) of the two pin cable to the Trbl #2 LED Drive connector on the LED Indicator
Card installed on the AV-V70 enclosure door, this is a keyed connection and can only be installed one way.
24VDC Wiring (see figure 1):
[1] Wire 24VDC regulated and power-limited power from the “Host” fire alarm control panel or from an ANSI/UL
Listed power supply, wiring should terminate on terminals 0V and +24V of the newly installed 70Vrms Speaker
Circuit Interface Card [0V = negative, +24V = positive].
[2] Wire from the newly installed 70Vrms Speaker Circuit Interface Card [0V = negative, +24V = positive] to the
bottom (original) 70Vrms Speaker Circuit Interface Card [0V = negative, +24V = positive].
“Host” Panel 25Vrms Speaker Circuit Wiring (see figure 2):
[1] Whether the “Host” speaker circuit is wired Class A or B, run the existing 25Vrms (40 Watt maximum) speaker
circuit wiring to the 25V Audio Input terminals B+ and B-, of the 70Vrms Speaker Circuit Interface Card. If the
“Host” speaker circuit is wired Class B, install the “Host” panel’s speaker circuit end-of-line (EOL) resistor
across the 25V Audio Input terminals A- and A+ of the 70Vrms Speaker Circuit Interface Card.
[2] If the “Host” speaker circuit is wired Class A, instead of placing the “Host” panels speaker circuit end-of-line
(EOL) across the A- and A+ terminals, connect the return “Host” panel’s Class A speaker circuit wiring to the
appropriate “Host” panel terminals.
ATTENTION
OBSERVE PRECAUTIONS
FOR HANDLING
ELECTROSTATIC
SENSITIVE DEVICES
