User Manual

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Network Communication
INNCOM employs a Deep Mesh system to connect guestroom IRAS components to management and monitoring
servers. Because networking infrastructure is embedded in the IRAS devices, command and reporting
information packets can follow multiple network pathways, increasing communication efficiency and reliability
at lower cost. Typically, a Deep Mesh network integrates 50–200 rooms per network segment
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. INNCOM
generally uses a wireless radio network, but a Deep Mesh system may be constructed using RS485 networks
(topologies that merge RF and RS485 networks are also possible).
2.4GHz Wireless RF
In a typical RF Deep Mesh network, an 802.15.4-based 2.4GHz radio-equipped IRAS device (most often a
thermostat, such as the e527) acts as a room gateway for communication with the network. Data are propagated
among the network nodes until terminated at edge routers that bridge traffic onto IP (Ethernet) networks towards
the servers. The radio specifications are given in the table below:
Performance 0dB
RF Data Rate 250kbps
Antenna Type SMT
Indoor Range 70ft
Outdoor/ RF line-of-sight range 540ft
Transmit Power 1mW
Receive Sensitivity -94.6dBm
Frequency Band 2.4GHz
Encryption AES-128
Protocol 802.15.4
Frequency Channels 11–26
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
- Consult the dealer or an experienced radio/TV technician for help.
Any changes or modifications not expressly approved by the party responsible for compliance could
void the user's authority to operate this equipment.
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The network segment size depends on the facility’s layout, expected network traffic, and other environmental considerations.