All external sensors connect to the proxy inputs. The Proxy Input is Color coded except for the nasal cannula which is located next to the proxy.
| Color | Proxy Input |
|:-------|:-----------------------------|
| Yellow | Abdominal Respiratory Effort |
| Blue | Thoracic Respiratory Effort |
| Gray | Thermistor |
| Brown | Oximeter |
| Orange | EKG sensors |