Pin Assignment - ICP DAS USA I-2533 User Manual

2.3 Pin Assignment

The pin assignments of COM port, CAN port, fiber port and power
connector of I-2533 are shown in the following tables.
Port Name
TXD
COM RXD
GND
CAN_L
CAN CAN_H
CAN_GND
TXD
Fiber
RXD
+VS
Power GND
F.G.
Sometimes, the CAN_GND voltage level of different CAN devices on a
CAN bus system are not equal. In this case, it could cause some problems and
derogate the system stability. There is one way to relieve this situation; users
can connect the CAN_GND of different CAN devices with each other to
balance the voltage level of CAN_GND.
Electronic circuits are always influenced by different levels of
Electro-Static Discharge (ESD), which become worse in a continental climate
area. F.G. provides a path for conducting the ESD to the earth ground.
Therefore, connecting the F.G correctly can enhance the capability of the ESD
protection and improve the module's reliability.
Wiring of CAN_GND and F.G. is not necessary; users can modify the
configuration of wiring according to real applications.
Table 2-1 Pin Assignment
Description
TXD pin of RS-232 port.
RXD pin of RS-232 port.
SG (or GND) pin of RS-232 port.
CAN_Low, signal line of CAN port.
CAN_High, signal line of CAN port.
CAN_Ground, ground voltage level of CAN port.
Transmit optic data.
Receive optic data.
Voltage Source Input. +10V
Power Ground.
Frame Ground.
I-2533 User Manual (ver. 1.1, 2013/05/31) ------8
~ +30V V .
DC DC