IO Module, Digital Contact Output, 16 Outputs, 2 sets of 8, 5 to Volt DC, 5 to Volt AC, Normally Open Relay, mA 5 Volt Dc, mA 24 Volt Dc. Buy New or Surplus ALLEN BRADLEY OW16 (ALLEN BRADLEY, OW16. OW16. OUTPUT MODULE, SLC, 16POINT. A, VAC, V ). Allen Bradley SLC PLC IO Module 8 Outputs 10 mA 5 V dc, 5 V ac. RS Stock No. ; Mfr. Part No. OW16; Brand Allen Bradley.