101-0444 Rabbit Semiconductor, 101-0444 Datasheet - Page 118
101-0444
Manufacturer Part Number
101-0444
Description
CARD A/D 4-20MA SR9320 SMARTSTAR
Manufacturer
Rabbit Semiconductor
Datasheet
1.101-0437.pdf
(184 pages)
Specifications of 101-0444
Accessory Type
RabbitNet A/D Card
For Use With/related Products
SR9320
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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10.2 User Interface
Depending on the model of Relay Card (see Table 20), the relays on the Relay Card will be
configured as SPDT or SPST with or without snubbers. Figure 45 shows these relay configura-
tions.
The diode protects the coil power supply (and the Smart Star backplane) from inductive
spikes caused by energizing/de-energizing the coil, and the resistor-capacitor snubbers
protect the relay contacts against voltage spikes induced by inductive loads.
Figure 46 shows the complete pinout for the user interface on header J1. Note that pin 1 is
indicated by a small arrow on the ribbon cable connector.
118
Figure 46. Relay Card User Interface Pinout
Figure 45. Relay Configurations
W
W
W
Smart Star Relay Cards (SR9500)
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