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NISE 3900 Series User Manual
Chapter 2: Jumpers and Connectors
COM1 Connector (Full RS232/422/485)
Connector type: 1x10 10-pin header, 1.0mm pitch
Connector location: COM1
COM2 Connector (Full RS232/422/485)
Connector type: 1x10 10-pin header, 1.0mm pitch
Connector location: COM2
Pin
Definition
Pin
Definition
1
SP1_DCD
2
SP1_RXD
3
SP1_TXD
4
SP1_DTR
5
ISO_GND
6
SP1_DSR
7
SP1_RTS
8
SP1_CTS
9
SP1_RI
10
ISO_GND
Pin
Definition
Pin
Definition
1
SP2_DCD
2
SP2_RXD
3
SP2_TXD
4
SP2_DTR
5
ISO_GND
6
SP2_DSR
7
SP2_RTS
8
SP2_CTS
9
SP2_RI
10
ISO_GND
10
1
10
1