Configuration
Switch Descriptions
Port 2
L
L
T
PU
PD
SW4
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9 10 |
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Port 1
L
L
T
PU
PD
Figure 1: Switch SW4
L485 option, OFF for 422.
OFF: No effect
ON : Connects TX+ to RX+ for
L485 option, OFF for 422.
OFF: No effect
ON : Connects TX- to RX- for
PU 485 option, OFF for 422.
OFF: No effect
ON : Adds a 1 K ohm
PD 485 option, OFF for 422.
OFF: No effect
ON : Adds a 1 K ohm
T422 and 485 option.
OFF: No effect
ON : Adds a 120 ohm termination resistor between RX+ and RX-
| Page 5 |