Campbell CNL100, Instruction Manual

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NL100/105 Network Link Interface
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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.
3.2.4 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.