Philips V60 Developer's Manual page 2

RS-232 serial port
Communications interface VRPT/SNDA
The ventilator is compatible with Philips monitors. It is compatible with
Cardiopulmonary Corporation's Bernoulli Ventilator Management System. For
complete compatibility information, contact your Philips representative.
Pinout of connector
The RS-232 connection is a 3-wire configuration consisting of a ground and
wires for transmitting and receiving data. Figure 1 shows the pinout of the 25-
pin D-sub connector used for the RS-232 serial port.
Pin Signal
1 HIS_RS232_SHLD
2 HIS_RS232_TxD
3 HIS_RS232_RxD
7 HIS_SIG_RTN
Figure 1: RS-232 serial connector pinout
Commands and transmission conventions
After receiving a command, followed by a carriage return, the ventilator
responds by transmitting the information in the tables. The fields that
comprise these tables are separated by commas. The ventilator stores and
responds to valid commands in the order received. It returns invalid commands
in an error message.
In the tables shown, a space is designated as "◆". When a field is unused, the
output field contains all spaces.
I/O Description
Power HIS RS232 cable shield
Output HIS RS232 transmit
data output
Input HIS RS232 receive data
input
Power HIS RS232/Signal
common
1