E 5 2 8 P r o d u c t G u i d e P a g e 2 o f 1 8
A centrally controlled EMS package is created when the e528 is connected to the property's Central Interface
Network (CINET) with a pair of low voltage wires or by the property’s high-speed TCP/IP network with the
addition of a TCT (an Ethernet gateway device). RF networking is possible with radio equipped models.
The e528 features a guest-friendly graphic interface with intuitive controls (Figure 2). A user guide for the e528,
written primarily for installers and facility management personnel, is available (see References below).
Wireless Communication
2.4Ghz wireless RF
Table 1 e528 RF Characteristics
Performance 0dB 20dB
RF Data Rate 250kbps 250kbps
Antenna Type SMT SMT
Indoor Range 70ft 100ft
Outdoor/ RF line-of-sight range 540ft 1000ft+
Transmit Power 1mW 10mW
Receive Sensitivity -94.6dBm -94.6dBm
Frequency Band 2.4Ghz 2.4Ghz
Encryption AES-128 AES-128
Protocol 802.15.4 802.15.4
Frequency Channels 11-26 11-26
Ranges are determined by performing an RF link quality test using two identical e528 thermostats containing
radios as defined in tables 2 and 3. The maximum distance threshold is based on a 95% overall link quality.
Outdoor ranges were conducted in a low noise, free air environment. Indoor ranges are for reference. Indoor
ranges are impacted by the ambient environmental noise floor, and building construction materials.
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