System Description

TD 93025US
9 May 2019 / Ver. I 86
System Description
teleCARE IP
9.10 Typical Call Sequence of teleCARE IP Wireless
• The ID of the NILF is received by the resident’s wireless transceiver:
1 The NILF intermittently transmits an LF signal containing the NILF ID. The resident’s mobile
transceiver NITX receives the NILF identity signal and stores it. This ID represents the location of
the resident.
• The resident needs assistance and makes a call:
2 When the resident presses the call button of the NITX an RF signal is transmitted which contains
the call message, the NITX ID and the last seen NILF ID. This message is received by the NIRX
that is mounted on the NIRC3 room controller.
3 The NIRC3 sends the information to the wireless server (NISM2) for processing.
4 The wireless server returns a flashing pattern to the NITX and dome lamp (NICL2) for signalling.