47
Ref. 185040646 MR730/720/700/480 Technical Manual ¯ Revision F ¯ Issued March 2001
A5.4 SERIAL DATA INTERFACE CONNECTOR
A DB9 connector on the side of the humidifier provides the interface connections.
pin 2 Remote shut down input (Serial in).
pin 3 Serial Data output.
pin 5 Humidifier Earth.
pin 7 +5 V (30 mA max)