Siemens 6ES7461-3AA00-0AA0 SIMATIC S7-400 IM461-3 Interface Module
Siemens 6ES7 461-3AA00-0AA0 SIMATIC S7-400 IM 461-3 Receive Interface Module for Distributed Expansion up to 102m, transmission of P and C bus, plugs into Expansion Rack, can be used exclusively with IM 460-3