HMS Ixxat iPC-I 320, Hardware Manual

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Configuration
14
iPC-I 320 Manual, Version 2.8
3.1.6 Providing Current Supply via CAN Plug
With the solder jumpers JP29, JP30, JP31, JP32, JP33 and JP36, the VCC (5V)
or GND signals can be connected to the CAN plug of the two CAN circuits. For
this, the jumpers given in the following table have to be closed.
Pin board JP15/JP25
Pin Signal Default
setting
CAN
circuit 1
CAN
circuit 2
3 - GND Closed JP29 JP32
6 - GND Open JP31 JP33
9 - VCC Open JP30 JP36
Attention: This voltage may be loaded with max. 100 mA.
If the bus transceiver is electrically isolated, GND and VCC are also connected
electrically isolated from the interface to the plug board via the solder jumpers.
With the PC/104 version, only the jumpers JP29, JP31 and JP30 are available;
they are on the back of the interface.
3.1.7 Reset Button and LED
With the order option "developer version", the reset button SW2 and the LED
D5 is assembled in addition to the two serial interfaces (with the PC/104 design
only one serial interface). The LED is controlled by the microcontroller via port
3.4, whereby the LED is on with a low signal (bit on 0). It is to be observed that
the port pin 3.4 is also led out onto the pin boards JP14 and JP24.
3.1.8 Earth Connection for Measuring Purposes
There is a connection on the iPC-I 320 ISA and AT/ISA96 for an earth pin. In
Fig. 3-2 and Fig. 3-3 it is marked as TP1 and on the circuit board with the
abbreviation GND next to the drill hole.
With the PC/104 version there is no additional earth connection.
3.1.9 Jumper for Port Pins 1.2 and 1.3
With the solder jumpers JP42 and JP43, the port pins 1.2 and 1.3 are either
connected to a serial interface chip (if available) or to the pin boards JP14 and
JP24. If no RS232 chip (developer version) is assembled, JP42 and JP43 are
open. These two jumpers are not available in the PC/104 version.
Jumper Position1-2* Position 2-3
JP42 (P1.2) P1.2 on
RS232 chip
JP1.2 on JP14
and JP24
JP43 (P1.3) P1.3 on
RS232 chip
JP1.3 on JP14
and JP24
* 1-2 bridged, default setting with assembled RS232 interface