Document Reference No.: ES_000008
S1-A-7001 RS232 to 1-Port CANbus Adapter User Guide
Version 1.2
Clearance No.: ES #03
©2009-10 EasySync Ltd.
9
3
Connections
3.1
External Connectors
3.1.1
RS232
The S1-A-7001 is configured to allow use of a straight-through 9-pin RS232. It can also be directly
connected to a host computer port. RS232 signal names are defined in Table 3.1.
Pin Number
Pin Type
Description
2
Input
RXD = RS232 Data INPUT
3
Output
TXD = RS232 Data OUTPUT
5
Ground
GND = RS232 signal ground
7
Input
CTS = RS232 Handshake INPUT
8
Output
RTS = RS232 Handshake OUTPUT
Table 3.1 – RS232 Pin-Out
3.1.2
CANbus
The CANbus port conforms to the CiA DS102-2 pin-out through a 9-contact D-Sub Pin connector. Pin
assignments are noted below:
Pin Number
Pin Type
Description
1
n/a
Not Connected
2
Bidirectional
CAN_L - CANbus low-side signal of differential pair
3
Ground
Signal Ground
4
n/a
Not Connected
5
Ground
Signal Ground
6
Ground
Signal Ground
7
Bidirectional
CAN_H – CANbus high-side signal of differential pair
8
n/a
Not Connected
9
PWR
+6V to +15V Battery Supply Voltage
Table 3.2 – DE-9P DS102-2 CANbus Pin-Out