16 relays 2 Isollated Inputs USB Controlled IA Dazy-Chain Series Intelligent Appliance Features Power Relay Controller 16 relay output and 2 Isolated Inputs Dual Watchdog Protection Circuits Supports USB 1.1/2.0 Fast Communication Rate Extremely Short Latency time 2500V Isolation on Input Channels 16Amp Relay Contact Rating Address & Status indicators DIN-Rail Mounting ready Easy Chaining The IA-3137-U is an intelligent Power Relay Controller, USB controlled, IA-3000 Series compatible with dual wiring versions. Both controllers include 16 power relays with a contact rating of 32VDC@16Amp and 250VAC@16Amp. Both controllers include dual, Optically Isolated Digital Inputs that might be either of a standard 5VDC to 32VDC range, or 90VAC to 230VAC range. In the IA-3137A-U the relays are grouped into 4 separate groups, while each group includes a common Bus line that simplifies the wiring, while in the IA-3137B-U the relays are wired independently of each other. Both modules are USB controlled, and has a built in capability of daisy chaining additional RS-232 modules, Series-3000 compatible. Each module has a unique permanent ID number, and easily settable chain address, enabling a simple control over several modules, connected to a single USB PC port. 16 Relays Contact current: Contact method: Wiring: Digital Inputs Voltage Range: Isolation Voltage: Isolation Methode: Daisy Chain Daisy Interface Communication Rate Daisy Wiring IA-3137A-U Power Relay Controller, USB controlled, Quad Relay Groups GENERAL Power supply: Module size: Weight: IA-3137B-U Extended Digital Input Voltage range IA-3137 module, Independent Relay Wiring #3 Communication Host Interface USB Default Setting 19200,8,n,1 Communication Rate 1200 to 230400 bps Ordering Information: 16 AMP @ 24VDC 16 AMP @ 240 VAC SPST (Form A) Ver.A Quad Common Ver.B Independent RS-232 1200 to 115200 bps DB9 M/F pin-to-pin 3 wires, pin 2, 3 and 5, up to 15 meter long 24VDC 0.4 Amp 205x115x45 mm 600 gr Specifications subject to change without notice.