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©2017 Guangzhou ZHIYUAN Electronics
Date: 2017/05/22
User Manual
V1.00
Guangzhou ZHIYUAN Electronics Co., Ltd.
CAN-bus recording analyzer
CANREC User Manual
3.4 DB9 Interface Definition
Table 3- 3 shows the definition of the DB9 interface. The interface can be used to
record data and waveform simultaneously.
Table 3- 3: DB9 interface definition
The built-in jumper of interface type (DB9 interface) selects a 120
terminal resistor.
Port
Pin
Symbol
Function
1
NC
Not connected.
2
CAN_L
CAN_L signal connection terminal
3
CAN_GND
Isolated CAN ground. It can be not connected.
4
NC
Not used.
5
SHIELD
Shield wire connection terminal (FG)
6
CAN_GND
Isolated CAN ground. It can be not connected.
7
CAN_H
CAN_H signal connection terminal
8
NC
Not used.
9
NC
Not used.
3.5 Optional Interface
To be compatible with ISO1898-1/2/3/4/5 standard, CANREC series product provide
4 PORT connectors, which contain 4 kinds of different CAN transceiver. Users can
purchase different PORT connector based on actual application system. By default,
P8251T is provided.
The product models of PORT are listed in Table 3- 4.
Table 3- 4: PORT connector description
No.
Model
Description
1
P8251T
Universal CAN transceiver PORT connector, and the baud rate is
0-1Mbps.
2
P1040T
High-speed CAN transceiver PORT connector. It is used in the
system where the baud rate is greater than 20Kbps (the maximum
baud rate is up to 1Mbps).
3
P1055T
Fault-tolerant CAN (also called low-speed CAN) transceiver PORT
connector, and the baud rate is less than 125Kbps.
4
P7356
Single-wire CAN transceiver PORT connector, and the baud rate is
less than 83.3Kbps.
