Cerlic BB2 - 9. Jumper Settings; Analog Outputs

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9. Jumper settings
BB2 has five jumpers to configure the board.
Jumpers on BB2
ANALOG OUTPUTS
The two analog outputs of BB2 are default active, sourcing 4-20 mA into a load of
maximum 500 ohms. They are galvanic isolated from the rest of the system, but the
two channels use a common ground. Channel 2 can be jumperd to be passive, and fully
isolated sink 4-20 mA from an external supply of max 24V DC, by changing JP1 and
JP7.
Analog Output channel 2 JP1 JP7
Active, sourcing 1-3 and 2-4 1-2
Passive, sinking 1-2 and 3-4 3-4
Digital Inputs
3
1 2
3 4
1 2
3 4
1
1 5
2 6
External load
Passive
BB2 Active
Sourcing 4-20 mA
6 or 8
7 or 9
8
9
BB2 Passive
(Channel 2 only)
Sinking 4-20 mA
External load
External 24 VDC