ADLINK Technology DLAP-211-JNX Series, User Manual, Page: 22 / 47

12 Introduction
1.5.4 Controller Area Network (CAN) Bus
The Controller Area Network (CAN) enables communication
among devices.
Table 1-7: CAN Bus Pin Definition
1.5.5 COM Port
One COM port supports RS-232/422/485.
Table 1-8: RS-232/422/485 Connector Pin Definition
Pin Signal Description
1 NC (Not connected)
2 CAN0_Low Differential CAN signal negative level
3 NC (Not connected)
4 NC (Not connected)
5 NC (Not connected)
6 NC (Not connected)
7 CAN0_High Differential CAN signal positive level
8 NC (Not connected)
9 NC (Not connected)
Pin RS-232 RS-422 RS-485
1 DCD# COM_TXD_N COM_D-
2 COM_RXD COM_TXD_P COM_D+
3 COM_TXD COM_RXD_P NC
4 DTR# COM_RXD_N NC
5 COM_GND NC NC
6 NC NC NC
7 COM_RTS# NC NC
8 COM_RCTS# NC NC
9 NC NC NC
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