Radio Shack 49-537 User manual

Cat. No. 49-537
OWNER’S MANUAL
DIGITAL KEY SWITCH
Please read before using this equipment.
49-537.fm Page 1 Thursday, August 19, 1999 9:16 AM

2
INTRODUCTION
Your Radio Shack Digital Key Switch is a high-
quality, UL-approved security keypad that connects
to your alarm system and eliminates the need for a
key to arm and disarm your alarm. Instead, you
simply enter your personally selected four-digit
code.
The keypad’s microprocessor lets you select from
10,000 possible codes. You can change the code
as often as you like.
Your keypad has these features.
Selectable Arm/Disarm Mode Switch—lets you
use the switch to control a wide variety of security
systems or other remote-switched devices.
ARM and LOOP Indicators—show the alarm’s
status (if your system provides connections for
remote arm and remote loop indicators).
1994 Tandy Corporation.
All Rights Reserved.
Radio Shack is a registered trademark
used by Tandy Corporation.
49-537.fm Page 2 Thursday, August 19, 1999 9:16 AM

3
Panic Circuit—lets you quickly trigger the alarm
from the keypad.
Built-in Tamper Switch—sounds the alarm if
someone tries to remove or damage the switch.
Wrong Number Lockout—makes you wait 10
seconds between incorrect attempts to discourage
random code number entries by unauthorized per-
sons.
This product is UL listed under Standard Number
1023, “Household Burglar-Alarm System Units.”
Use only with UL-Listed security devices.
49-537.fm Page 3 Thursday, August 19, 1999 9:16 AM

4
CONTENTS
Will fix
49-537.fm Page 4 Thursday, August 19, 1999 9:16 AM

5
READ THIS FIRST
Properly connecting and installing the keypad
requires careful planning before
y
ou be
g
in. Read
this entire manual and plan your installation before
continuing.
This manual includes specific connection drawings
for Radio Shack alarm systems as well as general
information for use with other security devices.
Check your security device’s owner’s manual for
specific instructions.
Here are some important points to consider when
planning your installation:
•Where will
y
ou mount the ke
y
pad? — the
keypad is designed only for indoor installation. It
should be readily accessible to those who will
use it, but should not be easily seen by an
intruder.
•How man
y
wires do
y
ou need and how lon
g
must the
y
be? — determine this information by
reading “Connections” and checking your alarm
system’s manual.
49-537.fm Page 5 Thursday, August 19, 1999 9:16 AM

6
•What other hardware and tools do you
need? — you should mount the keypad in a
standard single-gang electrical box (the kind
used for single wall switches and AC outlets).
See “Installation.” Once you install this box, all
you need is a screwdriver to complete the key-
pad’s installation.
Note: You can mount the keypad directly on
wooden or plasterboard walls, without an elec-
trical box. However, the box gives added secu-
rity and protection.
49-537.fm Page 6 Thursday, August 19, 1999 9:16 AM

7
CONNECTIONS
This section gives basic guidelines for connecting
the wires from your alarm system to the keypad. If
you are using a Radio Shack alarm system, see
the separate wiring diagrams for the exact connec-
tions. The keypad is compatible with many alarm
systems. However, some systems might not use all
the keypad’s features. Also, each system requires
some variations in wiring connections. After deter-
mining the wiring requirements, see “Installation”
for actual installation instructions.
(illust of keypad’s back panel)
49-537.fm Page 7 Thursday, August 19, 1999 9:16 AM

8
REMOTE N.O.
(
Normall
y
O
p
en
)
Terminals—these
terminals connect to your alarm system’s remote
arm/disarm terminals. They provide the switch clo-
sure needed to arm and disarm the alarm.
Note: Some systems require connection to nor-
mally closed remote arm/disarm terminals. If your
system has a normally closed switch, you must set
LATCH to IN and enter your code twice to arm and
disarm the system.
TAMPER/PANIC (N.O.) Terminals—these terminals
connect to the alarm’s normally open tamper/panic
loop. These terminals provide the signal to trigger
your alarm if someone tampers with the keypad or
you press #and Q on the keypad at the same time.
Note: If your system only has a normally closed
panic loop, do not use these terminals.
49-537.fm Page 8 Thursday, August 19, 1999 9:16 AM

9
ARM LED Terminals
(
+/–
)
—these terminals con-
nect to the alarm’s remote arm indicator terminals.
Follow the marked polarity (+ and –) to make the
connection. When power is applied to these termi-
nals, the red ARM indicator on the front panel turns
on.
Notes:
• Some systems might not have connections for
remote arm indicators. These connections are
not necessary for operation.
• If your system has an LED symbol ( )
above its terminals instead of polarity markings,
use this drawing to determine the correct con-
nections.
I
llustration: Diode Symbol and connections
49-537.fm Page 9 Thursday, August 19, 1999 9:16 AM

10
LOOP LED Terminals— these terminals connect to
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) Terminals—these terminals
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.
49-537.fm Page 10 Thursday, August 19, 1999 9:16 AM