An encoded information reading, EIR, terminal that is configured to read plurality of decodable indicia and is further configured to receive a radio frequency, RF, signal from at least one RFID tag disposed within an RF range of said EIR terminal , wherein the EIR terminal includes: a microprocessor communicatively coupled to a system bus ; a memory communicatively coupled to said system bus ; an imaging assembly comprising a two-dimensional image sensor and an imaging lens , said imaging lens configured to focus an image of decodable indicia onto said two-dimensional image sensor , wherein said imaging assembly is further configured to output a digital signal representative of light incident on said image sensor ; and an RFID reading device that is configured to convert said RF signal into a digital signal representative of said RF signal, wherein the EIR terminal is configured to determine at least one decoded message (414a-414z) based on at least one said digital signal representative of light incident on said image sensor or representative of said RF signal, wherein the EIR terminal is configured to create a message sequence that includes the at least one decoded message (414a-414z), and wherein the EIR terminal is configured to output the message sequence to an external device, characterized in that the EIR terminal is configured to: when the message sequence includes said at least one decoded message (414a-414z) based on said digital signal representative of light incident on said image sensor , insert in the message sequence a first source identifier identifying the imaging assembly; and when the message sequence includes said at least one decoded message (414a-414z) based on said digital signal representative of said RF signal, insert in the message sequence a second source identifier identifying the RFID reading device . a microprocessor communicatively coupled to a system bus ; a memory communicatively coupled to said system bus ; an imaging assembly comprising a two-dimensional image sensor and an imaging lens , said imaging lens configured to focus an image of decodable indicia onto said two-dimensional image sensor , wherein said imaging assembly is further configured to output a digital signal representative of light incident on said image sensor ; and an RFID reading device that is configured to convert said RF signal into a digital signal representative of said RF signal, wherein the EIR terminal is configured to determine at least one decoded message (414a-414z) based on at least one said digital signal representative of light incident on said image sensor or representative of said RF signal, wherein the EIR terminal is configured to create a message sequence that includes the at least one decoded message (414a-414z), and wherein the EIR terminal is configured to output the message sequence to an external device, characterized in that the EIR terminal is configured to: when the message sequence includes said at least one decoded message (414a-414z) based on said digital signal representative of light incident on said image sensor , insert in the message sequence a first source identifier identifying the imaging assembly; and when the message sequence includes said at least one decoded message (414a-414z) based on said digital signal representative of said RF signal, insert in the message sequence a second source identifier identifying the RFID reading device . when the message sequence includes said at least one decoded message (414a-414z) based on said digital signal representative of light incident on said image sensor , insert in the message sequence a first source identifier identifying the imaging assembly; and when the message sequence includes said at least one decoded message (414a-414z) based on said digital signal representative of said RF signal, insert in the message sequence a second source identifier identifying the RFID reading device . <EOS>