A multi-device connector for ECG signals permits multiple medical devices to share patient-connected surface electrodes, providing a patient-side terminal set having a direct connection to one device-side terminal set and buffered connections to multiple additional device-side terminal sets. Invasive blood-pressure sensor readings may also be shared by providing a direct connection between a patient-side terminal set and multiple device-side terminal sets for blood-pressure signals and a direct connection between the patient-side terminal set and only one device-side terminal set. Indirect, scaled connections between the remaining device-side terminal sets and the patient-side terminal set may be provided.