Analog Input SmartLeadP-811 Rev B (May 2019)9Charger Contacts – Sensor batteryis charged, and sensor data isexchanged through these points.Serial Number – Unique 5-character serial number whichidentifies each EMG sensor.3. Analog Input SmartLead Serial Number: Unique 5-characterserial number which identifieseach SmartLead.6.3 Signal Source SetupThe Analog Input SmartLead is manufactured in two forms:Exposed Wires 2.5 mm TRRS Mating ConnectorConnect Ultium Analog Input SmartLead to the desired signal source. The Ultium Analog InputSmartLead allows for the user to collect up to 3 signals.1) When utilizing the exposed wire version of the product the wire colors correspond to:Input 1 = RedInput 2 = BlackInput 3 = WhiteReference/Ground = Green