DSC WS4920 User Manual

6
Step 6: Quick Enroll/Placement Testing Devices
Up to 164 1-way wireless devices can be enrolled on the WS4920. During the first 4 hours of power
up, the WS4920 can be placed into Enroll/Placement Test modes. After the 4 hour time-out, access
to these modes is denied and the unit must be powered up again to enter Enroll/Placement mode.
NOTE: DLS cannot be used to enroll wireless devices on the WS4920. All wireless devices being
enrolled on the WS4920 must also be enrolled on the receiver/control panel.
To both enroll and placement test a device at the same time:
1. Press and hold Programming button for 1 second. “Mode Entered” tone (1 long beep) sounds.
The WS4920 is now in Enroll/Programming mode.
2. Trip and restore zone to be enrolled 3 times:
• Door and window contact - open/close or tamper/restore
• PIR and other stationary devices - tamper/restore
• Panic pendant - 3 to 4 button presses
• Wireless key - 3 separate button presses
3. Red LED (X) flashes until zone is enrolled. Once WS4920 has received signal from zone, Green
LED ( ) lights for 1 second and sounder emits “Zone Enrolled” (low to high) tone.
NOTE:
• If another zone is tripped during the enroll sequence, the enroll process must be restarted by trip-
ping and restoring the appropriate zone 3 times.
• A WS4920 can not enroll another WS4920.
• Stationary (permanently mounted) devices should only be enrolled with one WS4920. The
only exception is in (UL/ULC) Residential Fire installations, where smoke and CO detectors that
are enrolled with a WS4920 must be enrolled with at least two WS4920’s.
• Fobs and panic pendants may be enrolled with multiple WS4920’s.
• If an enrollment is attempted after all 164 device slots have been filled, the WS4920 emits a 2-
second error tone and all three LEDs light for 20 seconds to indicate that no further devices may
be enrolled.
4. After zone is enrolled, trip again to perform placement test (to test the signal between the
wireless device and the WS4920). Green LED flashes if signal is received.
• If “Good Zone Placement” tone (1 beep) sounds, device location is satisfactory and unit may be
permanently mounted.
• If “Bad Zone Placement” tone (3 loud beeps) sounds, reposition device and trip zone again. Con-
tinue until “Good Zone Placement” (1 beep) tone sounds.
5. Repeat steps 2-4 to enroll and placement test other zones.
• To exit, press Programming button again for 1 second or place cover back on WS4920. “Mode
Exited” (3 beeps) tone sounds.
NOTE: If the WS4920 tone can not be heard while testing the device, set the alarm panel into
individual placement test mode using the WS4920 serial number. The WS4920 placement test
results are sounded through the alarm panel siren.
• Although good results may be obtained on the WS4920, bad results are still possible from the
alarm panel due to collisions.
• Subsequent violations from an enrolled zone while the WS4920 is in programming mode will
initiate a placement test.

DSC WS4920 Specifications

General

Product color	White
Compatible products	ALEXOR, PowerSeries 9045/47, PowerSeries PC1616/PC1832/PC1864, . MAXSYS PC4010/PC4020 PC5132/RF5132/RF5108/. RFK5500/RF5501, MAXSYS RF4164 WS4945, WS4975 WS4904, WS4904P, WLS914-433 WLS912L-433 WS4913 WS4916 WS4938, WS4938-2W WS4939 WS4979
Battery low indication	Yes
RF transmission frequency	433.92 MHz
Number of devices supported	164
Operating temperature (T-T)	-10 - 55 °C
Operating relative humidity (H-H)	5 - 93 %
Input voltage	120 V
Battery voltage	4.8 V
Input frequency	50 Hz
Built-in battery	No
Operating current	0.1 A
Power source type	AC, Battery
Battery technology	Nickel-Metal Hydride (NiMH)

Weight and Dimensions

Depth	33.8 mm
Width	113.5 mm
Height	176.8 mm
Weight	- g