Digital Security Controls Ltd. 10WS4920 User Manual
The WS4920 is a wireless repeater designed to
extend the range of DSC one-way wireless
transmitters and to improve signal quality
between the transmitter and the receiver. Use
the WS4920 to remedy transmission problems
caused by excessive noise or other interference,
or by long distances between devices and
receivers. Up to 4 repeaters can be installed per
alarm system.
The WS4920 is compatible with all DSC 433
MHz one-way wireless transmitters, receivers and
alarm panels. It can also be used with 2-way
alarm panels, but only for 1-way devices.
Specifications
• Temperature range: 0°C to +50°C (32°F-122°F)
• Humidity (Max): 5% - 93% R.H. non condensing
• Transformer: 16VAC, 20VA
• Battery backup time: 24 hours
• Battery charging rate: 80% within 24 hours
• Operating frequency: 433.92 MHz
• Dimensions: H6.96, W4.47, D1.33 in.
• Weight: 2 lb.
Unpacking
Unpacking
Ensure your package includes the following:
Controls and Indicators
The WS4920 has three LEDs on the front used
to communicate information.
The LEDs indicate the following:
In addition, the WS4920 has an internal Pro-
gramming button to place the repeater into
Enroll/Placement modes. It also includes a
jumper to prevent RF jam troubles from being
sent to the panel. When the jumper is open, RF
jam troubles are not transmitted.
Install the WS4920 in the following order:
A.Temporarily mount in preferred location
B.Connect power (battery first then AC)
C. Receiver placement test (detects interference
between repeater and wireless devices)
Introduction
• One WS4920
• One direct plug-in transformer (kit dependant)
• Mounting hardware pack, including plastic wall
plugs and screws
• Installation instructions
LED
Normal Mode
(cover on)
Installer Mode
(cover off)
Green On:
AC present
Flashing: No AC,
battery good
Off: No AC, low or
dead battery
1 flash: Enrolled
Flashing: Placement
test active
Red
On: Battery not
connected
Flashing: Low battery
Off: Battery good (if
AC on)
Flashing: Zone not
enrolled
Yellow
On: RF jam present
Off: No RF jam
On: Receiver place-
ment test “bad”
Off: Receiver place-
ment test “good”
Green
Yellow
Red
Installation
Programming
Button
Button