1 Product Overview 1.1 Wireless alarm button «CN-KeyFob» (hereinafter, CN-KeyFob), is designed for hand-operated generation and transmission control commands (messages) via wireless two-way communication by the «CN-Contact-R» protocol with the control panel (hereinafter, CP) ensuring operation by the «CN-Contact-R» protocol. 1.2 CN-KeyFob comprises 3 control buttons for messages transmission. 1.3 CN-KeyFob operates within 433.05 - 434.79 frequency range. The transmitter power does not exceed 10 mW CN-KeyFob. 1.4 CN-KeyFob ensures operation at the main and backup operating frequencies. The changeover to backup operating frequency is fulfilled automatically. 1.5 CN-KeyFob is powered from one lithium power supply battery CR2032, placed inside the CN-KeyFob case. 1.6 The CN-KeyFob status is displayed by two-colored LED indicator. 1.7 The CN-KeyFob controls power battery state and sends the «Low Battery» message when the battery voltage drops lower than 2,6- 0,4 V. 1.8 The CN-KeyFob provides immunity to electromagnetic interference. 1.9 Industrial interferences created by the CN-KeyFob do not exceed the limits for the facilities used in housing, commercial zones or production areas with low power consumption. 1.10 The CN-KeyFob ensures safe operation under normal climatic conditions (according to Russian National State Boreal Climate Standard: environment temperature within the range +15 °С ...+35 °С, relative humidity in the range of 25 % ... 75 %, atmosphere pressure