Pinouts and wiring configuration, Nxc-com2 channel assignment – AMX NetLinx NXM Series User Manual
Page 14
NXC-COM2 Dual COM Port Control Card
8
NetLinx Cardframe, Control Cards, and NetModules
Pinouts and Wiring Configuration
NXC-COM2 Channel Assignment
NXC-COM2 Pinouts
NXC-COM2 Wiring Configuration
Pin Signal
Function
RS-232
RS-
422
RS-485
1
GND
Signal ground
X
X
2
RXD1
Receive data
X
3
TXD1
Transmit data
X
4
CTS1
Clear to send
X
5
RTS1
Request to send
X
6
TX1+
Transmit data
X
X (strap to pin 8)
7
TX1-
Transmit data
X
X (strap to pin 9)
8
RX1+
Receive data
X
X (strap to pin 6)
9
RX1-
Receive data
X
X (strap to pin 7)
10
+12 VDC
Power
Optional Optional
11
GND
Signal ground
X
X
12
RXD2
Receive data
X
13
TXD2
Transmit data
X
14
CTS2
Clear to send
X
15
RTS2
Request to send
X
16
TX2+
Transmit data
X
X (strap to pin 18)
17
TX2-
Transmit data
X
X (strap to pin 19)
18
RX2+
Receive data
X
X (strap to pin 16)
19
RX2-
Receive data
X
X (strap to pin 17)
20
+12 VDC
Power
Optional Optional
NXC-COM2 Channel Assignment
Channe
l
Description
255
CTS push channel - reflects the state of the CTS input if a 'CTSPSH' command
was sent to the device.