Radio Shack 49-537 Owner's Manual page 10

49-537.fm Page 10 Thursday, August 19, 1999 9:16 AM
Terminals— these terminals connect to
LOOP LED
your alarm system's remote loop indicator termi-
nals. Follow the marked polarity (+ and –). When
power is applied to these terminals, the green
LOOP indicator turns on.
Notes:
• Some systems might not have connections for
remote loop indicators. These connections are
not necessary for operation.
• If your system has the schematic symbol for a
diode, instead of polarity markings, use the
illustration of the diode symbol on Page 9 to
determine the correct connections.
POWER (DC10-18VDC)
connect to a constant source of 10-18 volt DC
power provided by your alarm system. Follow the
marked polarity (+ and –). These connections pro-
vide power to the keypad.
10
Terminals—these terminals