ETAS ES800 - Applications; Remarks on the Application Setup; Requirements for Failsafe Automotive Ethernet Operation

129 | Applications
ETAS ES800 System | User Guide
14 Applications
This chapter contains information about the following topics:
• Remarks on the Application Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
• Requirements for failsafe Automotive Ethernet Operation . . . . . . . . . . . . . . 129
• ETAS Modules of other Series and ETKs in Application Setup. . . . . . . . . . . . 130
• Cabling for MC Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
• Cabling for Rapid Prototyping Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
• Dual Mode ETKs on ES89x Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
14.1 Remarks on the Application Setup
The order of the cabling of the connections is random.
Connecting cables for the module interfaces can be ordered from ETAS. An over-
view is located in the chapter “Cables and Accessories” on page 184.
14.2 Requirements for failsafe Automotive Ethernet Operation
For failsafe operation of the Automotive Ethernet communication channel, all cus-
tomer specific installations - including cables, connectors and board adaptations -
have be compliant to:
- IEEE Std. 802.3bwTM-2015, “Amendment 1: Physical Layer Specifications
and Management Parameters for 100 Mb/s Operation over a Single Balanced
Twisted Pair Cable (100BASE-T1)”, chapters 96.7 - 96.9
- Open Alliance, “BroadR-Reach® Definitions for Communication Channel,
Version 2.0”
NOTE
Ensure that the connections are de-energized before you start the cabling.
NOTE
Carefully check the designations of the cables used. Wrong cables can impair
the functional capability of the module or damage the module and the devices
connected to them.
NOTE
To achieve an appropriate Automotive Ethernet channel performance all PCB
board and cable segments have to be optimized with regard to line impedance
matching, length matching within the differential net routing or twisted pair
cabling and on the reduction of untwisted regions. Stub segments must be
avoided for the Point-to-Point cable connection in favor of inline connectors and
shielding measures shall be considered depending on the operation environ
-
ment.