Campbell NL116, Инструкция по эксплуатации

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NL116 Ethernet and CompactFlash ® Module
Compliance Information: Application of Council Directive(s):
2004/108/EC Electromagnetic
Compatibility Directive (EMC)
Product Standard: EN 61326-1:2013 –
Electrical Equipment for measurement,
control and laboratory use – EMC
requirements – for use in industrial
locations.
2011/65/EU The Restriction of Hazardous
Substances Directive (RoHS2)
Cable Requirements: Use a straight-through Ethernet cable
when the cable is run from the hub to the
NL116. Use a shielded cable when the
cable length is more than 9 ft.
Note: The maximum recommended
segment length for 10BaseT and
100BaseTx networks using CAT5 cable is
100 meters. Segment length is the length
of cable between the NL device and the
Ethernet repeater, hub, switch, or router it
is connected to.
CF Card Requirements: Industrial grade
Ethernet Speed:
10/100 Mbps (10Base-T / 100Base-Tx),
full and half duplex, all auto-negotiated.
Typical access speeds vary and range from
20 KBytes/sec to 200 KBytes/sec
depending on multiple factors (*** see
note).
Memory Configuration: User-selectable for either ring style
(default) or fill-and-stop.
Dimensions: 10.2 x 8.9 x 6.4 cm (4.0 x 3.5 x 2.5 in)
Weight: 154 g (5.4 oz)
*** The NL116 will automatically negotiate the speed and duplex mode used for the
Ethernet link. However, the speed at which data can be transferred to and from a
datalogger over the NL116 depends on multiple factors including:
• the datalogger processor speed, that is, CR1000 vs CR3000
•
how busy the datalogger is performing measurement, processing, control and
other communication tasks; measurement tasks take priority over
communication tasks
• the IP protocol used for the data transfer and how/if the link is encrypted
•
where the data is being transferred from or to, for example, USR vs CRD
• limitation of the IP connection due to congestion, the number of “hops”, and
the quality of the physical media between the client and host
Below are some example data transfer rates observed over an ideal connection. A
laptop computer was connected directly to the NL116 interface, transferring a 1.7 MB
file to and from the datalogger USR drive.
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