Restoring The Ws4920 To Factory Defaults; Replacing The Battery - DSC WS4920 Manual De Usuario

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Global Placement Testing Devices
Conduct placement testing with doors and windows both open and closed to ensure acceptable
placement. To placement test a 1-way wireless device after the initial Enroll/Placement test process:
1. Place the alarm panel into individual placement test mode for the WS4920 zone (see control
panel installation instructions).
2. Press and hold Programming button for 1 second. "Mode Entered" tone (1 long beep) sounds.
WS4920 is now in global placement test mode. Each zone enrolled on WS4920 gives placement
test result when tripped.
• If "Good Zone Placement" tone (1 beep) sounds, device location is satisfactory and unit may be
permanently mounted.
• If "Bad Zone Placement" (3 loud beeps) tone sounds, reposition device and trip zone again.
Continue until "Good Zone Placement" tone (1 beep) sounds.
3. To exit, press Programming button again for 1 second or place cover back on the WS4920.
"Mode Exited" (3 beeps) tone sounds.
Step 7: Mounting the WS4920
Permanently mount the WS4920 only after completing multiple successful placement tests.
To mount the WS4920:
1. Ensure AC wire is run through channel on back of WS4920.
2. Remove front cover and secure unit to wall through mounting holes using all 4 wall plugs and
screws provided.
3. Place cover back on WS4920.
4. Plug AC adaptor into unswitched AC outlet.

Restoring the WS4920 to Factory Defaults

To restore factory default settings:
1. Within 1 minute of power up, press and hold Programming button for 10 seconds. Sounder
beeps after first second to indicate WS4920 is in Installer mode. After 10 seconds, WS4920
emits double long tone and all LEDs light.
2. Release Programming button and immediately press and hold again for 10 seconds. After 10
seconds, WS4920 emits a 4-second tone and all three LEDs flash.
The second button press must occur within 20 seconds of the first or the WS4920 will exit
NOTE:
Enroll/Placement mode.
3. WS4920 beeps three times and LEDs return to normal state, indicating Installer mode exit. If
Installer mode exits before reset is complete, due either to time-out or tamper, repeat procedure.

Replacing the Battery

Replace the backup battery when it no longer holds its charge.
To replace the battery:
1. Disconnect WS4920 from AC.
2. Remove front cover from device.
3. Disconnect battery cable from connector.
4. Loosen screw on battery retention bracket and rotate aside.
5. Lift battery out of holder and insert new one.
6. Reposition retention arm and tighten screw.
7. Attach battery cable to connector on PC board.
8. Snap front cover back into place.
9. Re-connect WS4920 to AC.
7

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