Mindray A3 - Page 64

Ventilator UI Theory of Operation
1 - 50 046-001141-00 A5/A3™ Service Manual
RS-232 Interface, J4
7 DP1 USB Data Signal + (Positive)
8GND Ground
PIN NAME FUNCTION
1 NC No Connection
2 RXD RS-232 Receive Signal
3 TXD RS-232 Transmit Signal
4 NC No Connection
5GND Ground
6 NC No Connection
7 NC No Connection
8 NC No Connection
9 NC No Connection
PIN NAME FUNCTION