Bayer HealthCare CLINITEK 500 Operating Manual page 74

COMPUTER/PRINTER INTERFACE
Pin Assignments for Interface Cable — Serial Port
Pin Signal
Number Name
1 CHAS GND
2 TXD
3 RXD
4 RTS
5 CTS
6 DSR
7 SIG GND
20 DTR
(All other pins are unused.)
Hardware Handshaking:
RXD Receive Data
TXD Transmit Data
DTR Data Terminal Ready
DSR Data Set Ready
RTS Request To Send
CTS Clear To Send
The following signal lines are NOT implemented:
DCD Data Carrier Detect
RNG Ring Indicator
CPI.2
Function
Protective Ground
Transmit Data
Receive Data
Request To Send
Clear To Send
Data Set Ready
Signal Ground
Data Terminal Ready
This input receives control characters for software handshaking and data for IDs.
This output sends test data, control characters, and instrument information.
This signal is on whenever the instrument I/O is configured for a computer and the
instrument is on.
The computer must raise this line whenever it is ready to receive data. If not supplied
by the computer, pin 6 must be jumpered to pin 20.
This output line, when high, indicates to the computer that it may send data.
This input is checked before sending each character and, if high, the next character
is sent. If not supplied by the computer, pin 5 must be jumpered to pin 4.
Pin 8
Pin 22
Table CPI-1
Signal
Type Source
Ground
Data CLINITEK 500
Data Computer
Control CLINITEK 500
Control Computer
Control Computer
Ground
Control CLINITEK 500
N/A
N/A
Revised 5/01