Jetter AG
Technical specifications | 4
JCM-501-E00 User Manual
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Category
Description
Bus terminating resistor
CAN 1
Internally not installed.
CAN 2
Internally installed (120
Ω).
External bus termination
Required for CAN 1
120 Ω
Cable specification
Twisted pair conductors, unshielded
Tab. 5:
CAN interfaces
Specification - CAN
bus cable
Category
Description
Wire cross-section
500 kBaud: 0.34 … 0.50 mm
2
250 kBaud: 0.34 … 0.60 mm
2
Cable capacitance
60 pF/m max.
Resistivity
500 kBaud: Max. 60 Ω/km.
250 kBaud: Max. 60 Ω/km.
Number of cores
2
Twisting
CAN_L and CAN_H cables are twisted pairwise
Tab. 6:
Specification - CAN bus cable
Line lengths
The maximum permitted cable length depends on the baud rate used and the
number of CANopen
®
devices connected.
Baud rate
Max.
line length
Max. stub
line length
Total
line length
500 kBaud
100 m
5 m
30 m
250 kBaud
250 m
10 m
60 m
Tab. 7:
Line lengths
4.6.2 USB interface
INFO
The USB port does not meet the immunity requirement of the E1 directive.
Therefore, use the USB port only for service purposes and not while the unit is in
operation.
Category
Description
Supply unit
5 V, 500 mA max.
Data rate
USB 2.0
High-speed type
480 MBaud max.
Protocol
USB host interface
Line length limitation
30 cm
Tab. 8:
USB interface
4.6.3 Ethernet interface
Category
Description
Socket
M12 connector (female), 4-pin, D-coded
Bit rate
10, 100 Mbit/s
Number of ports
1
Auto-crossover
Yes
Connection topology
Single connector (M12)
Tab. 9:
Ethernet interface