16-channel Non-isolated Digital Input Module using the DCON Protocol. The I-87051W is a 16-channel Digital Input module for dry contact wire connections with an effective distance of up to 100 meters. All channels can be used as 16-bit counters and 4 kV ESD protection is provided. The I-87051W also includes 16 LED indicators that can be used to monitor the status of the Digital Input channels.Features:16-channel Digital InputDry Contact Digital I..