E20-10
User Manual
characteristics: unshielded connector on mother card, partially or fully unshielded cable from
this connector, improper cable shield connection and remote connector.
6.5.2. Multimodule connections
You must keep the following rules in multimodule configurations with
E20-10
:
If modules are interconnected via digital lines (including via synchronization and interrupt
lines) then modules GND lines shall be interconnected as well.
If different modules are conductively coupled via any circuits but they use different PC or
different USB-hubs from individual power sources, then these PC or USB-hubs shall have common
ground (if ground circuit is provided) and modules GND circuits shall be interconnected.
When interconnecting of bidirectional lines of different modules the inconsistent state
output
to output
which can lead to lines overflow
E20-10
should be negated
.
The modules connecting to USB issues are described in
. For information on proper
use of GND, GND* and AGND circuits when connecting the devices, please, refer to
Higher levels of through currents are potential in multimodule connections E20-10 (pp.
). Penetration methods: proper grounding, in-phase filters (specific recommendation
providing detailed description of connecting case are given - on demand in L-CARD).
