Campbell Scientific NL100 Network Link Interface - Manual (Page 24)

NL100/105 Network Link Interface
Some of the communication links require additional peripherals or cables that
can be purchased from Campbell Scientific. In some cases, a standard RS-232
9 to 25 pin or 25 to 25 pin cable is required. RS-232 cables can be purchased
from Campbell Scientific or from a computer accessories supplier.
FIGURE 3. Typical NL100/105 Setups in LoggerNet
3.2.1 Direct Connect from the NL100/105 to a Datalogger
Either the CS I/O port or the RS-232 port can be used to directly connect a
datalogger to the NL100/105. Cabling or additional peripherals are required as
listed below. Note that multiple dataloggers can be connected to one
NL100/105 by using combinations of the connections described below. Each
port must be assigned a unique port number.
NL100/105 CS I/O port to datalogger CS I/O port - An SC12 cable is
connected between the CS I/O ports on both devices. An SC12 is typically
shipped with all datalogger peripherals.
NL100/105 RS-232 port to datalogger RS-232 port - A standard 9 to 9 pin
communications cable should be connected between the RS-232 ports on both
devices.
NL100/105 RS-232 port to datalogger CS I/O port - A serial communications
cable should be connected to the RS-232 port of the NL100/105. This cable
should be connected to an SC32A or SC32B optically isolated interface, and
the datalogger should be connected to the 9 pin port of the SC32A/B with an
SC12 cable.
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