means a communication sent by the DCC to a SMETS1 Service Provider in the circumstances set out in the Service Request Processing Document.
Where, in processing a SMETS1 Service Request, the DCC would have included a Supplementary Remote Party ID value and a Supplementary Remote
Party Counter value (with their GBCS meanings) in a resulting Command if the target Device had been a SMETS2+ Device, the DCC shall include those
values in the Countersigned Service Request sent to the relevant S1SP, and shall identify those details as being a Supplementary Remote Party ID value
and a Supplementary Remote Party Counter value respectively (with their GBCS meanings).