Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved.
17
NIFE 300 Series User Manual
Chapter 2: Jumpers and Connectors
COM 2 Port (RS232/422/485)
Connector type: DB-9 port, 9-pin D-Sub
Connector location: COM1/COM2
COM 2
1
6
5
9
RS232
RS485
RS422
Pin
Definition
Pin
Definition
Pin
Definition
1
SP2_DCD
1
SP2_DATA-
1
SP2_TX-
2
SP2_RXD
2
S
2
3
SP2_TXD
3
NC
3
4
SP2_DTR
4
NC
4
SP2_RX-
5
GND
5
GND
5
GND
6
SP2_DSR
6
NC
6
SP2_RTS-
7
SP2_RTS
7
NC
7
8
SP2_CTS
8
NC
8
9
SP2_RI
9
NC
9
SP2_CTS-
MH2
REAR_GND
MH2
REAR_GND
MH2
REAR_GND
MH1
REAR_GND
MH1
REAR_GND
MH1
REAR_GND