Campbell Scientific RF401-series and RF430-series Spread Spectrum Data Radios/Modems - Manual (Page 103)

Appendix K. RF401/RF411 Pass/Fail
Tests
This appendix describes a method to functionally test RF401/RF411 system
components including:
• PC COM port
• SC12 serial cable
• RF401/RF411
• RF401/RF411 Antenna
Hardware/Software Required
 PC with one available COM port
 Terminal Program (HyperTerminal TM or Procomm TM )
 Two RF401/RF411s
 Two SC12 serial cables
 ¼ wave OMNI antenna (CSI Item # 14310)
 Two power supplies rated 12 Volts, 1 Amp
(recommend AC adapter Item # 15966 and any 12 V battery pack
with Field Power Cable Item # 14291)
The following descriptions tell how to build an RF401/RF411 loop-back
test system. Recommendations are given as to where to place the
system to avoid rf-reflections (see TESTING ¼ Wave Antenna
footnote 2 in this appendix). The basic parts of the system are:
1) PC running a terminal program and a serial cable from PC COM
port to base RF401/RF411
2) Base RF401/RF411
3) Remote RF401/RF411 with RS-232 port jumper wire between TX
(pin 2) and RX (pin 3) for data loop-back.
Build the RF401/RF411 test system in the order shown:
1) TESTING SC12 CABLE and PC COM PORT
2) TESTING RF401/RF411s
3) TESTING ANTENNAS
Label components of the system “known-good” as they pass the test.
TESTING SC12 CABLE and PC COM PORT
(1) Run a terminal program such as HyperTerminal TM or Procomm TM
(a) Baud rate: 9600
(b) Data, Parity, Stop Bits: 8-N-1
(c) Flow control: none
(d) Emulation: TTY
K-1