HHPC-2 Handheld Airborne Particle Counter Operator Manual

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26 of 46 Operating the HHPC-2 - HHPC-2 Handheld Particle Counter Operator Manual Fig 3-4 : Delete Buffer Screen 4) Confirm the deletion by pressing the Start/Stop key. The Main Screen displays with the buffer count shown on the bottom line. The buffer count should equal zero. KSS - March 2005 - Edition 2
KSS - March 2005 - Edition 2 HHPC-2 Handheld Particle Counter - Data Communications 27 of 46 4 Data Communications 4.1 Remote Serial Interface (I/O Port) The HHPC-2 comes equipped with a RS232 communications port, an RS232 cable and a RJ-45 connector. This port is used to communicate with a computer to download data and for remote operation. The specifications and wire pin-outs for the I/O port are: • Baud rate: 9600 baud • Data bits: 8 bits • Parity: None • Stop bits: 1 bit DB-9 Serial Connection If the computer or terminal has a 9-pin serial port with a female connector, use the provided Modular RJ-45 to DB-9 Connector along with the RS232 cable. The HHPC-2 is preconfigured as Data Communication Equipment (DCE), so the use of a null-modem cable is not required. The cable pin diagram is shown in Figure 4-1. HHPC-2 Adapter PC RJ-45 Female RJ-45 Female DB-9 Female DB-9 Male RS485 B 1 1 N/C RS485 A 2 2 RX SD 3 3 TX RD 4 4 DTR CS 5 5 GND ER 6 6 N/C N/C 7 7 N/C GND 8 8 DSR N/C 9 9 N/C Fig 4-1 : Pin Layout for the RJ-45 to DB-9 Connector Cable Operator Manual
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HHPC-2 Handheld Airborne Particle Counter Operator Manual

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