The Allen-Bradley 1771-OQ16 is a 16-channel isolated digital DC output module for PLC-5 systems. Designed to drive DC relays and other low-voltage output devices, this module ensures reliable operation in industrial control applications. Each of the 16 outputs is electrically isolated, providing noise immunity and circuit separation for sensitive equipment. The 1771-OQ16 installs into a 1771 I/O chassis and draws 400 mA from the 5V DC backplane power supply. It is a robust choice for discrete output tasks requiring dependable signal control and isolation in legacy Allen-Bradley PLC-5 environments. Manufacturer Rockwell Automation Brand Allen-Bradley Part Number 1771-OQ16 Module Type Digital DC Output Module Number of Outputs 16 Isolated Channels Voltage Type DC Backplane Current 400 mA @ 5V DC Compatible Series PLC-5 Isolation Yes