Campbell Scientific CSAT3B CSAT3B Three-Dimensional Sonic Anemometer - Page 26

CSAT3B Three-Dimensional Sonic Anemometer, HUB-SDM8 for multiple CSAT3B connections

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CSAT3B Three-Dimensional Sonic Anemometer distance from the datalogger, the HUB-SDM8 can be placed near the CSAT3Bs with a single SDM cable extended from the hub to the datalogger. This decreases the total network cable length, which limits signal attenuation. The HUB-SDM8 has eight terminal strips and features spring-loaded guillotine terminals for easy wiring. It comes in a watertight enclosure and includes a Ubolt for mounting to a vertical pipe or mast. An SDM Cable (CABLE5CBL-L; see Section 5.2.4.4, SDM Cable CABLE5CBL-L) should be ordered to connect the HUB-SDM8 to a datalogger and a power supply. FIGURE 5-10. HUB-SDM8 for multiple CSAT3B connections with SDM communications 5.2.4.4 SDM Cable CABLE5CBL-L The SDM cable, CABLE5CBL-L, is a 22 AWG, five-conductor cable with a Santoprene jacket and an aluminum Mylar® shield. By default, the conductors are stripped and tinned. The CABLE5CBL-L is used to connect the power and SDM connection from a HUB-SDM8 to the power and SDM connections on a power source and datalogger. 5.2.4.5 HUB-CPI The HUB-CPI (pn 30692) allows up to eight CPI devices to be connected together in parallel. In the case of the CSAT3B, up to seven CSAT3Bs, or CSAT3B daisy-chains using CSAT3BCBL3 cables, may be connected in parallel to the HUB-CPI. The remaining port may be used with a CAT5e or CAT6 Ethernet cable (see Section 5.2.4.4, SDM Cable CABLE5CBL-L) to connect the HUB-CPI to the CPI port on a datalogger such as the CR6. The HUB-CPI (shown in FIGURE 5-11) is not weatherproof and should be housed in an enclosure, typically alongside the datalogger. 16

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CSAT3B Three-Dimensional Sonic Anemometer
distance from the datalogger, the HUB-SDM8 can be placed near the
CSAT3Bs with a single SDM cable extended from the hub to the datalogger.
This decreases the total network cable length, which limits signal attenuation.
The HUB-SDM8 has eight terminal strips and features spring-loaded guillotine
terminals for easy wiring.
It comes in a watertight enclosure and includes a U-
bolt for mounting to a vertical pipe or mast.
An SDM Cable (CABLE5CBL-L;
see Section 5.2.4.4,
SDM Cable CABLE5CBL-L
) should be ordered to connect
the HUB-SDM8 to a datalogger and a power supply.
FIGURE 5-10.
HUB-SDM8 for multiple CSAT3B connections with SDM
communications
5.2.4.4 SDM Cable CABLE5CBL-L
The SDM cable, CABLE5CBL-L, is a 22 AWG, five-conductor cable with a
Santoprene jacket and an aluminum Mylar
®
shield. By default, the conductors
are stripped and tinned.
The CABLE5CBL-L is used to connect the power and SDM connection from a
HUB-SDM8 to the power and SDM connections on a power source and
datalogger.
5.2.4.5 HUB-CPI
The HUB-CPI (pn 30692) allows up to eight CPI devices to be connected
together in parallel. In the case of the CSAT3B, up to seven CSAT3Bs, or
CSAT3B daisy-chains using CSAT3BCBL3 cables, may be connected in
parallel to the HUB-CPI.
The remaining port may be used with a CAT5e or
CAT6 Ethernet cable (see Section 5.2.4.4,
SDM Cable CABLE5CBL-L
) to
connect the HUB-CPI to the CPI port on a datalogger such as the CR6.
The HUB-CPI (shown in FIGURE 5-11) is not weatherproof and should be
housed in an enclosure, typically alongside the datalogger.
16