| BRAND | Phoenix Contact |
| Product | P/N: 2901535, Type: RAD-DI4-IFS |
| Description | Radioline - I/O expansion module |
| Internal code | IMP985666 |
| Weight | 0.1823 |
| Custom code | 85389091 |
| Technical specification | 4 digital inputs (0... 250 V AC/DC) |
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