32-ch Relay USB or RS-232 Controlled Multi-Drop Series Intelligent Appliance Features 32-ch, 10 Amp Power Relays SPDT / DPDT 32/16 Selectable Isolated USB Port Isolated Voltage Monitor Input 2 Way Watchdog Protection Multi-Drop operation ready Status Led indicators on all I/Os Open Source code samples Setting and Operating Utility API Software Library Unique ID DIN-Rail mounting ready The IA-3178-U2i is a 32 Channels Industrial Relay Controller, with 32 Power Relays and an Isolated, High Voltage Line Monitor, designed and produced by Intelligent-Appliance. 32 Relays: Contact current Each relay has a Contact Rating of over 10Amp @ 30VDC, and over 10Amp @ 240VAC. Each relay is of SPDT kind, one Change-Over, while it may be used as a DPDT, two Change-Over, set by software and internal logic. Isolated Digital Inputs: Channels 1 Voltage Range 12V to 30VDC 90V to 250VAC (IA-3178H-U2i) Isolation Optic The IA-3178-U2i includes an Isolated USB port and two Watchdog circuits. The USB port isolation task is avoiding Ground Loops and EMI/RFI Interference, while the second Watchdog task is better defined and secured treatment of PC and Communication failures. The IA-3178-U2i is being widely supported by Microsoft Studio Class Library, by National-Instruments Labview Drivers and by various open code software examples. The IA-3178-U2i can be controlled by a USB port or by an RS-232 port, while it can be easily and transparently chained by other Intelligent-Appliance Series-3000 products. Ordering Information: IA-3178-U2i 32-ch, 10 Amp Power Relay Module, USB or RS-232 Multi-Drop Series, USB Cable Include. IA-3178H-U2i 32-ch, 10 Amp Power Relay Module - High Voltage Range Input USB or RS-232 Multi-Drop Series, USB Cable Include. Contact method Communication: Main COM Expansion COM Default BR COM Rate COM input COM output Wiring: Host/Module cable: Module/Module cable: General: Power supply: Module size: Weight: # 256 USB or DB9 M/F pin-to-pin DB9 M/F pin-to-pin Up to 15m between each module. Specifications subject to change without notice.