Rondish Company Limited
Unit G & H, 4/F, Block 1, Kwai Tak Ind. Ctr,
15-33 Kwai Tak St., Kwai Chung, N.T.,
Hong Kong
Tel.: (852) 25431955
Fax: (852) 25417411
DATE: 2-Mar-2023
Wireless Handset (NEC-05M): RF Technical Operation
NEC-05M is a wireless handset for emergency use to work with a monitor or a
receiver or a system. It uses the OOK modulation with a carrier frequency at
433.92MHz for signalling.
It simply operates as below:
1. Pressing the "CALL" button to send a RF signal to a receiver or a monitor to
make an alarm for normal help.
2. When the normal call is served, a "Cancel" RF signal can be used to reset the
alarm by pressing the "R" button.
3. When the emergency call is activated by sliding the side switch down, an
emergency signal is sent to the receiver or the monitor.
4. By pushing the slide switch up, it sends a reset signal.
RONDISH COMPANY LIMITED
Unit G/H, 4/F, Block 1, Kwai Tak Industrial Centre, 15-33 Kwai Tak St., Kwai Chung, N.T., Hong Kong.
Tel.: (852) 2541 6685
Fax: (852) 2541 7411
Designs in Security / Healthcare / Communication
Email: rcl@rondish.com
Website: www.rondish.com
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