24 Relays USB Control Multi-Drop Series Intelligent Appliance Features 24-ch Power Relays SPDT, form C, contact 1 Isolated Monitoring Inputs 2 Way Watchdog Protection Multi-Drop operatin ready Status Led indicators on all I/Os Open Source code samples Setting and Operating Utility API Software Drivers Library Sequence Operation Program Unique ID and Addressing DIN-Rail mounting ready The IA-3158-U is an intelligent 24-ch Power Relay Controller, with 1-ch Isolated Digital Input and multi-drop operation capability. The IA-3158-U is an Industrial grade relay controller, easy operated, supported by a simple, yet, powerful command set. Rich software support, incloding open source code samples, setting utilities and sequence operation program makes it fast and easy adaptable device. The IA-3158-U is part of the IA-3000 Series. This Series include Relay controllers, Digital and Analog controllers, usually equipped with USB, RS-232/485, IP or Wireless communication port. 24 Relays Contact current Contact method Isolated Digital Inputs Channels 1 Voltage Range 12V to 30VDC Isolation Optic IA-3158-U 24-ch Relay Module, USB, Multi-Drop IA-3158-UP Pluggable Version of IA-3158-U USB Daisy-Chain 19200bps 1200-230 Kbps USB DB9 Male pin 2,3 and 5 up to 15m long GENERAL Power supply: Module size: Weight: Ordering Information: Communication COM method COM expand Defult BR COM rate COM input COM output Module/Module cable Specifications subject to change without notice.