Optocoupler Relay Interface Module have three types 2 channel, 4 channel & 8 channel, 1 C/O as follows.

1. Optocoupler Relay Interface Module 1 C/O

              OPRL21CO                                             OPRL41CO                                                OPRL81CO

Features:

• Isolation between input & output
• +ve & -ve common through jumper selection
• Low input current

Notes:

• Output Indications:
  C: NC (Normally Closed)
  P: Common
  O: NO (Normally Open)

   
  Specifications: