Allen-Bradley 1734-ADN POINT I/O DeviceNet Adapter Module By wayne No Comments on Allen-Bradley 1734-ADN POINT I/O DeviceNet Adapter Module 2 Min Read Procure the genuine Allen-Bradley 1734-ADN DeviceNet adapter. It supports 504 I/O points and 63 modules. Fast shipping via FedEx, UPS, or DHL is available.