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9
NISE 51 User Manual
Chapter 2: Jumpers and Connectors
Jumpers and Switches
COM1 5V/RI Select
Connector type: 1x3 3-pin header, 2.0mm pitch
Connector location: JP7
Pin
Settings
1-2 On
5V
2-3 On
RI
2-3 On: default
Pin
Definition
1
VCC5
2
SP1_RI#_R
3
SP1_RI#
1
3
COM3 RS422/485 Select (Default RS485)
Connector type: 1x3 3-pin header, 2.0mm pitch
Connector location: JP6
Pin
Definition
1
RX+
2
RX-
3
NC
1
3