Section 12
Model 601/601P/602/602P/603 NDIR Analyzer
California Analytical Model 600_NDIR_Series_v10.0 CE
Operators Manual
Page 73 of 86
12. Communication Master Computer / Analyzer (AK Protocol)
12.1.
Serial Interface and AK-Commands
The serial interface enables remote control of the analyzer by a master computer. It is
implemented as an RS232 V24 interface and meets all requirements of the AK protocol.
A 9-pin male connector at the back of the unit is used to connect a master computer with the
following pin assignment:
Figure 12-1 Serial Interface
Pin 2 = Rxd (receive)
Pin 3 = Txd (transmit)
Pin 5 = Gnd (ground)
12.2. Interface
Specifications
Speed: 9600
bps
Character Length
1 start bit
8 data bits
1 stop bit
Parity: none
Handshake no
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