505U-K Wireless I/O One‑way low‑power transmitter Description The ELPRO 505U-K Wireless I/O is a small I/O transmitter that extends long‑range, license-free communications to sensors in local, remote, or difficult‑to‑reach locations. Designed with low power consumption and simple plug-in of ELPRO BU-5 battery packs, the ELPRO 505U-K provides reliable continuity in environments typical of industrial applications with power constraints. Capable of transferring analog, pluse, or discrete inputs, and powering a loop-powered analog device (24 Vdc, 50 mA), the ELPRO 505U-K offers a simple‑to‑deploy and highly reliable solution. 869.525 MHz frequency and 500 mW RF power, or 869.875 MHz frequency and 5 mW RF power models Link process inputs to single or multiple outputs (peer to peer) Multiple power supply options, including battery-only supply with ultra-low power consumption (reverts to “sleep” mode) Input-only transmitter unit (2 or 4 DI/PI, 1 AI) that can be connected to multi‑I/O and/or gateway units, up to 3000 units in a system Peer-to-peer communications with exception reporting, reliable self-checking via update time, and secure data encryption External inputs plus internally calculated values, including analog set point status, pulse rate and pulse total, power/battery supply voltage, and power supply alarm Can connect to up/down counter transducers, such as shaft encoders Configurable repeat transmissions to five times for message reliability Set point, pulse count, and rate available. Additional internal I/O points provided for health monitoring Security gate control Emergency shower notification Flow meter monitoring Storage tank monitoring Pipeline cathodic protection Pump stop-start Lighting bank control Power reticulation relay fault notifications Weather station reporting

Specifications SPECIFICATION Transmitter and Receiver Frequency 868.525 MHz a 869.875 MHz b Transmit power 500 mW a 5 mW b Transmission Frequency modulation (FM) Modulation Digital frequency shift key (DFSK) Channel spacing 250 kHz Data rate 19.2 kbps with forward error correction Range (LoS) 6.2 miles (10 km) @ 500 mW a c EIRP 0.62 miles (1 km) @ 5 mW b c EIRP Antenna connector Female SMA standard polarity Internal gas discharger arrestor protection Input and Output Digital inputs TTL voltage 0–1.5 Vdc (on), 3.5–13 Vdc (off) Surge protected, not isolated, voltage-free/NPN contacts 2 DI (external,...

Technical Data EL-505U-K Effective November 2018 ELPRO Technologies 9/12 Billabong Street Stafford Queensland 4053 Australia Telephone: Global: +61 7 3352 8600 USA: +1 855 443 5776 [email protected] www.elpro.com.au © 2018 ELPRO Technologies All Rights Reserved Publication No. EL-505U-K November2018 ELPRO Technologies is a registered trademark. All other trademarks are property of their respective