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68
Smartcat (BL2100)
Table A-2 lists the configuration options.
Table A-2. BL2100 Jumper Configurations
Header
Description
Pins Connected
Factory
Default
JP1
RS-485 Bias and Termination
Resistors
1–2
5–6
Bias and termination resistors
connected
×
1–3
4–6
Bias and termination resistors
not
connected
*
* Although pins 1–3 and 4–6 of header JP1 are shown “jumpered” for the termination and
bias resistors
not
connected, pins 3 and 4 are not actually connected to anything, and this
configuration is a “parking” configuration for the jumpers so that they will be readily
available should you need to enable the termination and bias resistors in the future.
JP2
Software I/O Configuration
Option
1–2
Standard
×
2–3
Custom (IN16–IN23 are config-
ured as digital sinking outputs)
JP3
Analog Circuit Option
1–2
Installed
BL2100
BL2120
2–3
Not installed
BL2110
BL2130
—
IN00–IN07
R56
Pulled up to Vcc
×
R57
Pulled up to +K2
R54
Pulled down
—
IN08–IN15
R60
Pulled up to Vcc
×
R61
Pulled up to +K2
R59
Pulled down
—
IN16–IN23
R69
Pulled up to Vcc
×
R70
Pulled up to +K2
R71
Pulled down
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