Mindray A7 Service Manual

A7™ Service Manual 046-006272-00 1 - 61
Theory of Operation Ventilator Control and Drive
VCM Interface, J1
Pneumatic Assembly Interface, J2
PIN NAME FUNCTION
1 SAFE_VALVE Pressure Relief Valve Drive Signal
27VIN Inspiration Valve Drive Signal
3INSP_VALVE Inspiration Valve Drive Signal
4 7VIN_or_5VIN PEEP Valve Drive Signal
5 PEEP_VALVE PEEP Valve Drive Signal
6SOLENOID_VALVE1Three-way Valve 1
7SOLENOID_VALVE2Three-way Valve 2
8SOLENOID_VALVE3Three-way Valve 3
9SOLENOID_VALVE4Three-way Valve 4
10 PNEUM_PRES_SW Pneumatic Block Pressure Switch Signal
11 NC No Connection
12 ACGO_SW ACGO Tact Switch Signal
13 O2_PRE_SW O2 Pressure Switch Signal at Gas Supply Inlet
14 MANU_AUTO_SW Auto/Manual Switch Signal
15 GND Ground
16 CO2_BYPASS_SW Circuit CO2 Absorber Canister Signal
17 O2+ O2 Concentration Signal
18 O2- O2 Concentration Signal
19 TXD_AUX_BRD VPM Serial Port Transmit Signal
20 RXD_AUX_BRD VPM Serial Port Receive Signal
21 GND Ground
22 SDA IIC Data Signal
23 SCL IIC Clock Signal
24 VT Thermal Mass Flow Sensor Temperature Signal
25 VF Differential Pressure Sensor Flow Signal
26 GND Ground
27 TXD_MON_BRD VCM Serial Port Transmit Signal
28 RXD_MON_BRD VCM Serial Port Receive Signal
29 12V 12V Power Supply
30 GND Ground
31 5V VCM Close Pressure Relief Valve Signal
32 5V 5V Power Supply
33 TXD_CALIBRATE Calibration Serial Port Transmit Signal
34 RXD_CALIBRATE Calibration Serial Port Receive Signal
35 GND Ground
36 12V 12V Power Supply
PIN NAME FUNCTION
1 7Vout_or_5Vout Pressure Relief Valve Power Supply
2 SAFE_VALVE Pressure Relief Valve Drive Signal

Mindray A7 Specifications

General

Brand	Mindray
Model	A7
Category	Medical Equipment
Language	English