Table of Contents
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Chapter 2: Jumpers and Connectors
Touch 4/5 Wire Select
Connector type: 1x3 3-pin header, 2.54mm pitch
Connector location: JP4
1
3
Pin
Settings
1-2 On
5 wire
2-3 On
4 wire
1-2 On: default
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COM1 RI Pin Power Select
Connector type: 1x3 3-pin header, 2.54mm pitch
Connector location: JP12
1
3
Pin
Settings
1-2 On
RING
2-3 On
+5V
1-2 On: default
Pin
Definition
1
SP1_RI
2
SP1_PSRI
3
VCC5
17
OPPC 1540HT-J1900/1940HT-J1900 User Manual
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