Device
and operation
CPC307
C P C 3 0 7 U s e r M a n u a l
80
© 2 0 2 2 F a s t w e l v . 0 0 6
4.3.20 Configuration jumpers
Table 4.32. Description of setting the jumpers to the XP4 connector
Jumper state
Function
1 - 2
When the jumper is set, the high-speed mode of the CAN1 interface driver is
activated (for speeds higher than 250 Kb/s).
When the jumper is removed, the CAN1 interface driver operates in a mode
with a reduced level of emitted electromagnetic interference due to a lower
steepness of the signal edges.
3 - 4 (for module versions
older than 4.x)
3 - 4 and 5 - 6 (for module
versions 4.x)
When the jumper is set, a 120 ohm terminating resistor is connected to the
CAN1 line.
Table 4.33. Description of setting the jumpers to the XP8 connector
Jumper state
Function
1 - 2
When the jumper is set, the high-speed mode of the CAN2 interface driver is
activated (for speeds higher than 250 Kb/s).
When the jumper is removed, the CAN2 interface driver operates in a mode
with a reduced level of emitted electromagnetic interference due to a lower
steepness of the signal edges.
3 - 4 (for module versions
older than 4.x)
3 - 4 and 5 - 6 (for module
versions 4.x)
When the jumper is set, a 120 ohm terminating resistor is connected to the
CAN2 line.
Table 4.34. Description of setting the jumpers to the XP15 connector (for module versions lower than than 4.
х)
Jumper state
Function
1 - 2
If the jumper is set on the TX+/TX- line of the COM5 interface, a 120 ohm
terminating resistor is connected.
3 - 4
If the jumper is set on the RX+/RX- line of the COM5 interface, a 120 ohm
terminating resistor is connected.
Table 4.35. Description of setting the jumpers to the XP15 connector for module versions 4.
х
Jumper state
Function
1 - 2
The +TX signal is pulled up through a 680 Ohm resistor to the +5V supply
voltage to generate a 200 mV offset on Y/Z lines.
3 - 4
The -TX signal is pulled up through a 680 Ohm to the GND for generation of a
-200 mV offset on Y/Z lines.
5 - 6
When the jumper is set to the RX + / RX- line of the COM5 interface (in the
RS-422/485 mode), the 120 Ohm terminating resistor is connected.
1 - 2 and 3 - 4
When the jumper is set to TX+/TX- line of COM5 interface (in RS-422/485
mode), 120 Ohm terminating resistor is connected.