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Introduction
The AIM104-RELAY8/IN8 is an 8-bit PC/104 module providing 8 changeover relays, and 8 optoisolated inputs. The module provides upto 1500V electrical isolation between your PC/104 based control system and the electrical system you are controlling. The isolation between adjacent channels is limited by the wiring and connectors to 100V. The power switching rating for the relay contacts is 60W (resistive load). The relays and board layout are designed to switch voltages up to 220v DC (125v AC) and currents up to 1.0A. However the Low Voltage Directive specifies that the product may only be safely used up to 48v DC. The board includes jumper options for each digital input to select a 10ms input debounce filter.
Features
8 changeover relays with a power switching rating of 60W (resistive load)
8 Opto-isolated inputs
All inputs include reverse protection diodes
Board access LED
Both normally closed and normally open relay terminals are available at the I/O connector
MTBF: 91,195 hours (using generic figures from MIL-HDBK-217F at benign ground)
Operating temperature range, -20°C - +70°C
Opto-input switching voltage : 10v to 30v
Output status readback register
Power consumption +5V +/- 0.25V 250mA typical
Relay drivers disabled on power up and reset
Switching voltage upto 48v DC and switching currents up to 1.0A