Mindray A5 Service Manual

A5/A3™ Service Manual 046-001141-00 1 - 57
Theory of Operation Ventilator Control and Drive
11 PCON-
Power ON/OFF Signal, LVTTL Pulse Signal. If this signal is high level, the
system is turned on; if this signal is low level, the system is turned off.
12 3.3VBF 3.3V only used for power ON/OFF the machine
13 BAT2+ 2# Battery Input, connect to battery positive end
14 GND Ground
15 BC2F
2# Battery Availability Signal. Low level indicates battery available; high
level indicates battery unavailable
16 NTC2 2# Lithium-ion Battery Internal Thermistor Signal
17 BAT1+ 1# Battery Input, connect to battery positive end
18 GND Ground
19 BC1F
1# Battery Availability Signal. Low level indicates battery available; high
level indicates battery unavailable
20 NTC1 1# Lithium-ion Battery Internal Thermistor Signal
21 GND Ground
22 GND Ground
23 HEA_PWR_15V Heat Wire Drive Voltage Output
24 HEA_PWR_15V Heat Wire Drive Voltage Output
25 NTC_R12 Thermistor (for controlling heat wire) Pin 1
26 NTC_R22 Thermistor (for controlling heat wire) Pin 2
27 NTC_R11 Thermistor (for controlling heat wire) Pin 1
28 NTC_R21 Thermistor (for controlling heat wire) Pin 2
29 GND Ground
30 GND Ground
31 3V3 3.3V Supply Voltage Output
32 3V3 3.3V Supply Voltage Output
33 5V 5V Supply Voltage Output
34 GND Ground
35 GND Ground
36 GND Ground
37 NC No Connection
38 GND Ground
39 NC No Connection
40 NC No Connection
41 GND Ground
42 GND Ground
43 12V 12V Power Supply Output
44 GND Ground
45 12V 12V Power Supply Output
46 12V 12V Power Supply Output
47 NC No Connection
48 15V2 15.2V Supply Voltage Output
49 NC No Connection
50 15V2 15.2V Supply Voltage Output
PIN NAME FUNCTION (Continued)

Mindray A5 Specifications

General

Brand	Mindray
Model	A5
Category	Medical Equipment
Language	English