AMX NetLinx NXM Series User Manual download pdf (Page 14)

NXC-COM2 Dual COM Port Control Card

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

Description

255 CTS push channel - reflects the state of the CTS input if a 'CTSPSH' command

was sent to the device.

1 ... 13 14 15 ... 54

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AMX NetLinx NXM Series User Manual Page 14