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Sensor Bus Expansion
4x Sensor Ports Provide power and serial
communications to Define Instruments
Sensor Bus compatible products
8x Open Collector Outputs
Isolation No isolation to ground
Power supply 11–25V DC, 3.6A max*
User must supply an external UL rated
SELV/PELV Class III** power supply
*
Actual current limit of the supply depends on
peripheral selection
** Class III Equipment: See Appendix E.1
Over voltage protection 30V DC max
Comms interface RS485
Selectable baud rate 2400–230400 baud.
Format 8 bit, no parity, 1 stop bit
Max current per solid state output
0.3A DC, protected by 1.1A PTC resettable
fuse. Inbuilt flyback diode
© 2024 Define Instruments
SBS1, SBS2
G3 IoT Manual | Doc No: 2303-00000-0-1 | Rev: 24V05 | 19 Mar, 2024
NOTE: See p3 (Order Codes)
for ordering information for
optional add-ons.
15
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