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NISE 50-J1900 User Manual
Chapter 2: Jumpers and Connectors
COM1 5V/12V/RI Select
Connector type: 1x5 5-pin header, 2.0mm pitch
Connector location: JP11
1
5
Pin
Settings
1-2 On
+5V
2-3 On
+12V
4-5 On
Ring
Pin
Definition
1
VCC5
2
COM1_RI#_T
3
VCC12
4
COM1_RI#_T
5
COM1_RI#
COM3 TX Terminal Pin Header
Connector type: 1x3 3-pin header, 2.0mm pitch
Connector location: JP6
Pin
Definition
1
TX+
2
TX-
3
GND
1
3