9. Interfaces
9-2
Technical Manual for sunrise RC, TW, TS, TC, BC, 6F No. T 137 302 Rev No. 1.1
2004-10
9.1.3
RS-232-C Interface Lines
The serial interface of the instrument is connected to a start-stop synchronized
serial RS-232-C circuit.
The list below names the interface lines of the 9 pin connector of the instrument.
PIN Number
DESCRIPTION
1 N.C.
2
TD
Transmit Data (Output)
3
RD
Receive Data (Input)
4 N.C.
5 GND
Ground
6 N.C.
7
RTS
Request To Send (Output)
8
CTS
Clear To Send (Input)
9 N.C.
The connecting cable used to connect the instrument to the computer should be
wired as given below:
INSTRUMENT COMPUTER
TD
connected to
RD
RD
connected to
TD
GND
connected to
GND
RTS connected to CTS
DSR connected to DCD and DTR
Use the computer handbook to find the correct pin connections.
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
20
Instrument
Instrument
Computer 25 pin
Computer 9 pin
Requirements for the Serial Interface:
Computer interface 300-38.400 baud.
Download of new FW versions (FW-Update).
Remote control.
Download of test definitions.
Download of gradient wavelength table values.
Download of QC-Pac2 norm data.
General packet frame: STX
packet
ETX CS CR.
Spectra Mode available
