IXXAT FlexRay CCM/ FRC-EP150, Hardware Manual

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Copyright IXXAT Automation GmbH
FlexRay CCM Manual, Version 2.4
Connections
11
Interface Vendor Type / remark
Power supply Lemo EPJ.1B.302.HLD
Ethernet Lemo EPD.1B.308.YLN
2 x CAN Lemo EPC.1B.308.HLN
2 x FlexRay Lemo EPB.0B.305.HLN
Trigger-In / Trigger-Out Lemo EPB.1B.308.HLN
Table 3-1: Connectors of the FlexRay CCM used
The interfaces are galvanically isolated from each other. In case of the FRC-EP150,
the CAN1/3- and CAN2/4-Interfaces do reside on the same potential. A more de-
tailed description is given in the relevant section. For shielding, please refer to
section 3.2.
3.1.1 FlexRay connector (FLX A & FLX B)
The differential signal pairs (BM and BP) for the FlexRay bus channels A and B are
connected to the FlexRay connectors. The connection assignment is listed in Table
3-2.
Pin Signal
1
2
3 4
5
1 Ground (FlexRay)
2 FlexRay Bus Minus (BM)
3 FlexRay Bus Minus (BM)
4 FlexRay Bus Plus (BP)
5 FlexRay Bus Plus (BP)
Table 3-2: Pin assignment of the FlexRay connector
The signal BM is connected to pin 2 and 3. These pins are connected with each
other in the device. The signal BP is connected to pin 4 and 5. These pins are
connected with each other in the device.
No bus terminal resistor is integrated in the device. If a bus terminal resistor is
required, it must be connected to the cable or connector. FlexRay cables with in-
tegrated terminal resistor are available as accessories.
The signal pair of the cable can be connected to pin 2 and pin 5. A bus terminal
resistor can be connected between pin 3 and pin 4.
With a Y-cable, the signal pair of cable 1 is connected to pin 2 and pin 5. The
signal pair of cable 2 is connected to pin 3 and pin 4. A suitable Y-cable is availa-
ble as accessories.
Always use cables suitable for the device, which are available in various versions,
see section "Accessories".