
PIN
Signal
Mode
RS-422
RS-232
LED
RS-485
LED
8
GND
GND (ground)
–
GND
(ground)
–
9
T2+/ TxD2
T2+
TxD2
Tx2
Rx2+/ Tx2+
Receive:
Rx2
Transmit:
Tx2
10
T2-
T2-
–
Rx2-/ Tx2-
•
Default mode: RS-232
•
Data transmission rates:
°
RS-232: 115.2 kBaud
°
RS-422: 2 MBaud
°
RS-485: 2 MBaud
6.5.7
X7 - SERIAL B
Isolated
PIN
Signal
Mode
RS-422
RS-232
LED
RS-485
LED
1
R3+/ RxD3
R3+
RxD3
Rx3
–
–
2
R3-
R3-
–
–
–
3
GND ISO
Insulated reference poten‐
tial
–
GND
(ground)
–
4
R4+/ RxD4
R4+
RxD4
Rx4
–
–
5
R4-
R4-
–
–
–
6
T3+/ TxD3
T3+
TxD3
Tx3
Rx3+/ Tx3+
Receive:
Rx3
Transmit:
Tx3
7
T3-
T3-
–
Rx3-/ Tx3-
8
GND ISO
Insulated reference poten‐
tial
–
GND
(ground)
–
9
T4+/ TxD4
T4+
TxD4
Tx4
Rx4+/ Tx4+
Receive:
Rx4
Transmit:
Tx4
10
T4-
T4-
–
Rx4-/ Tx4-
•
Default mode: RS-232
•
Data transmission rates:
°
RS-232: 115.2 kBaud
°
RS-422: 2 MBaud
°
RS-485: 2 MBaud
6.5.8
X8 - CAN
Table 4: X8 - CAN
PIN
Signal
Function
Factory settings
1
CAN H
CAN high
Termination deacti‐
vated
*
)
2
CAN L
CAN low
3
GND
Ground
4
CAN H
CAN high (redundant)
Termination deacti‐
vated
*
)
5
CAN L
CAN low (redundant)
6
ELECTRICAL INSTALLATION
22
O P E R A T I N G I N S T R U C T I O N S | SIM2000ST-E
8025454/1BLK/2021-03-30 | SICK
Subject to change without notice