NL100/105 Network Link Interface
17
FIGURE 4. LoggerNet Setup for NL100/105 to MD9 to Datalogger Connection
3.2.3 RF Connection from NL100/105 to Datalogger
NL100/105 to radio frequency (RF) modems to datalogger connections allow
wireless communication to remote dataloggers stations over a TCP/IP network.
Up to 254 datalogger sites can be addressed in an RF network.
The communication link requires an RF base station connected to the NL100's
RS-232 port via a standard RS-232 9 to 25 pin cable. Note, however, that the
RTS line in the cable must be disabled (pin 7 on the 9-pin connector or pin 4 on
the 25-pin connector). The base station can be made up of an RS-232 RF Base
Station or the combination of an SC532, RF modem (e.g., RF95A) and a
transceiver (e.g., RF300). The remote datalogger is connected to an RF station
that typically consists of an RF modem, transceiver, and power supply.
The Setup window in LoggerNet should depict an RF Base modem attached to
the IPPort, with the datalogger attached to an RFRemote Modem. Refer to
Figure 5 below.
Содержание CNL100
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