Sinclair SDV5 Series Service Manual page 37

Table 5-1.3: 100/120 model communication converter board PCB ports
Label in
Figure 5-1.3
1
2
3
4
5
Figure 5-1.4: 140/160 model outdoor unit Communication switchboard PCB Ports
Table 5-1.4: 140/160 model communication switchboard PCB ports
Label in
Port code
Figure 5-1.4
1 CN502
2 CN501
3 CN4
4 CN20
5 CN21
6 CN18
7 CN5
8 CN24
9 CN12
10 CN27
11 CN22
12 CN13
13 CN7
14 CN10
36
Port code
CN1 R T communication port
P Q E X Y E communication port（with main board）
CN2
CN3 O A communication port（reserved）
P Q E X Y E communication port
CN4
CN300 Chip burning port
Power input port
Power input port
Relay control/current sampling input port
Communication port between outdoor unit and indoor unit
Reserved
Outdoor unit heat exchanger pipe temperature/outdoor
environment temperature detection port
Compressor discharge temperature detection port
Compressor discharge temperature detection port
Signal input port of system low pressure & high pressure
detect switch
Online Programmable Port
EEV driving port
Load output port(4-way valve)
Reserved
Reserved
Content
Content
Port voltage
2.5-2.7V DC
2.5-2.7V DC
2.5-2.7V DC
2.5-2.7V DC
5V DC
Port voltage
AC 220V
AC 220V
DC 12V/AC 0-10.4V
DC 2.5~5V
/
DC 0~5V(in dynamic change)
DC 0~5V(in dynamic change)
DC 0~5V(in dynamic change)
DC 0~5V(in dynamic change)
DC 5V
The first pin: DC12V;
The other four pins: in dynamic change
AC 220
/
/