Contol receiver from IP2IR to receiver rear ir input jack?

Is it possible to control Sherwood 972 receiver from IP2IR to receiver rear ir input jack?

I have connected the IP2IR to the receiver with a mono cable and tried adding all Sherwood receiver devices, but, none of them respond when I test the remotes.

On most brands that does work. We don’t know about the Sherwood. We’d suggest contacting their support if you’d like to use it that way to determine what kind of conversion might be necessary from standard IR cabling.