The Wago 750-337 is a CANopen fieldbus coupler for the 750 Series I/O system. It connects as a slave to the CANopen fieldbus, supporting up to 64 modules per node and 32 Tx/Rx PDOs.
Phoenix Contact 2897211 is a DeviceNet bus coupler with 8 digital inputs and 4 solid state outputs, operating at 24 V DC. It mounts on DIN rail and has an IP20 protection rating.