Phonetics Sensaphone ISACC 5000 - Manual (Page 16)

16
Sensaphone ® ISACC Instruction Manual
phone
receptacle
RS232
port
7.5"
9"
Mounting ISACC circuit board
After the holes have been drilled, mount the board with the hardware provided. Use a nylon
washer between the board and the screw, and a nylon spacer between the board and mounting
surface. Both wood screws and machine screws have been provided for your convenience.
POWERING ISACC
IMPORTANT: Before applying power to ISACC, the ON-OFF switch must be in the
OFF position. The ON-OFF switch is located to the right of the acrylic panel, below the
power supply terminal block.
Located on the board is a terminal block labeled POWER. The power supply specification for
ISACC is 20 to 24 Volts AC, 50 or 60 Hz. This is applied through the two terminals labeled 24
AC
.
You may use either an external AC power supply or an external DC power supply. Follow the
requirements and connection instructions below exactly so that problems and/or damage do
not occur. Three manufacturers of AC transformers that are compatible with ISACC are
Magnetek Triad (#F6-20), Thordarson (#FP-507), and Stancor (#P8661).
CAUTION: To avoid the danger of shock or damage to the unit, only qualified
personnel should wire and service the power supply.
AC supply requirements:
1. The voltage range for powering ISACC is 20 to 24 VAC.
2. The AC supply should be able to provide a minimum of 1.5 Amp at the required
voltage.
AC supply connections:
1. Wire the primary side of the 20 - 24 VAC transformer to the 120 VAC supply.
2. Wire the secondary side of the 20 - 24 VAC transformer to the terminals marked
24AC on the ISACC POWER terminal block.