Campbell Scientific NL100 Network Link Interface - Manual (Page 27)

NL100/105 Network Link Interface
Setup window for an RF Network using VHF/UHV radios and a mixed array
datalogger.
FIGURE 5. LoggerNet Setup for NL100/105 to RF to Datalogger Connection
Refer to Campbell Scientific's Radiotelemetry Network Instruction Manual for
more information on setting up RF stations.
3.2.5 Short Haul Modem Connection from NL100/105 to Datalogger
The use of Short Haul Modems (SRM-5A, SRM6-A) allows a connection to a
datalogger via TCP/IP to a twisted pair cable. The short haul modem at the
NL100/105 should be connected to the device using a standard RS-232 9 to 25
pin communication cable. It is recommended that a short haul surge protection
device (P/N 5563) be connected next and then the twisted pair cable. Another
surge protection device is recommended between the cable and the remote
short haul modem. The short haul modem should be connected to an SC932
RS-232 9 to 25 pin DCE interface, which is then connected to the datalogger's
CS I/O port via an SC12 cable.
3.2.6 Phone Modem Connection from NL100/105 to Datalogger
A Hayes-compatible phone modem can be connected to the NL100/105 to
allow a TCP/IP to phone link between a computer and a datalogger. The phone
modem should be connected to the NL100/105's RS-232 port using an
appropriate RS-232 serial cable. Connection of the remote phone modem to the
datalogger will vary, depending upon the type of remote modem used. Refer to
the user's manual for the system you purchased for additional information on
assembling the remote site.
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