Chapter 4
Extension Cards
- Note -
Would an Extension Card be inadvertently forced in a wrong slot, the Base Unit will detect it
and will NOT complete its BOOT sequence. Therefore, the unit will not be accessible through its
LAN interface. The slot error is returned by the USR LED. (red ON 1sec, OFF 0.5 sec).
Boot the unit so it can detect the inserted Extension Cards. As explained in §
Cards Displayed in the System Page
the web interface of the eWON Flexy has a diagnostic
page showing the Extension Cards in their order of detection (from left to right).
4.3. Powering On the Base Unit with its Extension Cards
The normal boot sequence of the eWON Flexy takes approximately 25 seconds to
complete. During this process, all LEDs of the left row go ON for a while, except BI1 as long
as the RESET button is not pressed. During this sequence, the
USR
LED is going ON orange for
some time. As soon as the boot process is finished, the
USR
LED is slowly flashing green ON
and OFF.
The Extension Card types are detected slot per slot during the boot sequence and are
automatically installed from a system standpoint. If an Extension Card was inserted in a
wrong slot, the boot sequence is interrupted and the
USR
LED is
flashing
RED 1x short 3x long
and communication through the Ethernet port is no longer possible.
4.4. Multiple Extension Cards
4.4.1. Detection Order
The boot sequence of the Base Unit includes an automated detection of the inserted
Extension Cards. This detection is done sequentially, slot per slot starting from left to right
(from 1 to 4 in the example shown in the next §).
4.4.2. Software Compatibility of Multiple Card Combinations
The Flexy Base Units allow to insert multiple Extension Cards of the same type. Some
configurations including multiple Extension Cards, even if mechanically acceptable, are not
supported by the embedded software. Cards in excess are ignored during the automated
detection process so that the Base Unit and its running Extension Cards will operate
normally.
The ignored card(s) will appear in the
Diagnostic > Status > Info > System
but they will NOT
operate.
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eWON Flexy - Base Units | IG 014
