2-7 
 
2.4.3 Alarm Lamp Board 
The alarm lamp board is located at the top of front housing. It has two-color indicators, red and yellow. The alarm 
lamp board directly connects the main board through a cable. It is controlled directly by the main board. 
 
 
2.4.4 Touchscreen and Touchscreen Control Board 
The touchscreen control board drives the touchscreen and implements communication with the monitor. 
 
 
2.4.5 Wi-Fi Module (For Passport 12/Passport 8 Only) 
The Wi-Fi module enables the monitor to connect to 802.11 g/n wireless network. 
 
 
2.5 Rear Housing Assembly 
 
 
 
 
The rear housing assembly consists of the parameter panel assembly, multi-parameter assembly, pump and valve 
assembly, recorder assembly, main bracket assembly (including the battery compartment and battery interface board), 
power management board, and interface board. 
 
Pump and valve 
assembly 
Recorder assembly 
Interface Board 
Power management board 
Main bracket assembly 
Parameter panel 
assembly 
Multi-parameter 
assembly