Campbell Scientific CSAT3B CSAT3B Three-Dimensional Sonic Anemometer - Page 25

Power/SDM Splitter, 2.4.2 CPI/RS-485 Splitter, 2.4.3 HUB-SDM8

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CSAT3B Three-Dimensional Sonic Anemometer 5.2.4.1 Power/SDM Splitter The Power/SDM splitter (pn 30293) has three 6-pin M16 connectors. The splitter, shown in FIGURE 5-8, allows connection at the Power/SDM port on the back of the CSAT3B block to two CSAT3BCBL1 or CSAT3BCBL2 cables. The splitter is IP68 rated, meaning it is dust and watertight. It is used for daisy-chaining multiple CSAT3Bs in series. A Power/SDM Splitter is required for each CSAT3B in the daisy-chain (regardless of communication method used) except for the terminal one. FIGURE 5-8. CSAT3B Power/SDM splitter 5.2.4.2 CPI/RS-485 Splitter The CPI/RS-485 splitter (pn 30294) has three 8-pin M16 connectors. The splitter allows connection at the CPI/RS-485 port on the back of the CSAT3B block to two CSAT3BCBL3 cables. The splitter is IP68 rated. It is used for daisy-chaining multiple CSAT3Bs in series that use CPI or RS-485 communications. A splitter is required for each CSAT3B in the daisy-chain, except for the terminal one. For a daisy-chain of CSAT3Bs using SDM communications, the CPI/RS-485 splitter is not needed. Only the Power/SDM splitter (see Section 5.2.4.1, Power/SDM Splitter) is needed. NOTE Both splitters, pn 30293 and pn 30294, look similar; however, they have a different number of pins and are not interchangeable. FIGURE 5-9. CSAT3B CPI/RS-485 splitter 5.2.4.3 HUB-SDM8 The HUB-SDM8 (pn 20759) allows up to six SDM devices (typically, one datalogger and multiple SDM sensors) to be connected together in parallel. It is shown in FIGURE 5-10. In the case of the CSAT3B, up to five CSAT3Bs, or CSAT3B daisy-chains using CSAT3BCBL1 cables, may be connected to the HUB-SDM8. In cases where multiple CSAT3Bs are installed some 15

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CSAT3B Three-Dimensional Sonic Anemometer
5.2.4.1 Power/SDM Splitter
The Power/SDM splitter (pn 30293) has three 6-pin M16 connectors.
The
splitter, shown in FIGURE 5-8, allows connection at the
Power/SDM
port on
the back of the CSAT3B block to two CSAT3BCBL1 or CSAT3BCBL2
cables.
The splitter is IP68 rated, meaning it is dust and watertight. It is used
for daisy-chaining multiple CSAT3Bs in series.
A Power/SDM Splitter is
required for each CSAT3B in the daisy-chain (regardless of communication
method used) except for the terminal one.
FIGURE 5-8. CSAT3B Power/SDM splitter
5.2.4.2 CPI/RS-485 Splitter
The CPI/RS-485 splitter (pn 30294) has three 8-pin M16 connectors.
The
splitter allows connection at the
CPI/RS-485
port on the back of the CSAT3B
block to two CSAT3BCBL3 cables.
The splitter is IP68 rated.
It is used for
daisy-chaining multiple CSAT3Bs in series that use CPI or RS-485
communications.
A splitter is required for each CSAT3B in the daisy-chain,
except for the terminal one.
For a daisy-chain of CSAT3Bs using SDM
communications, the CPI/RS-485 splitter is not needed.
Only the Power/SDM
splitter (see Section 5.2.4.1,
Power/SDM Splitter
) is needed.
Both splitters, pn 30293 and pn 30294, look similar; however,
they have a different number of pins and are not interchangeable.
FIGURE 5-9.
CSAT3B CPI/RS-485 splitter
5.2.4.3 HUB-SDM8
The HUB-SDM8 (pn 20759) allows up to six SDM devices (typically, one
datalogger and multiple SDM sensors) to be connected together in parallel.
It
is shown in FIGURE 5-10.
In the case of the CSAT3B, up to five CSAT3Bs,
or CSAT3B daisy-chains using CSAT3BCBL1 cables, may be connected to
the HUB-SDM8.
In cases where multiple CSAT3Bs are installed some
NOTE
15