I-7540D-WF CAN to Wi-Fi Converter User’s Manual (Ver. 2.0, Jan/2012) ------------- 16
2.7 LED Indication
There are five LEDs to indicate the various states of the I-7540D-WF.
The following is the illustration of these five LEDs.
(1) PWR LED :
It is used to help users to check whether the I-7540D-WF is standby. If
the module is working in “firmware operation” mode, the PWR LED is
always turned on.
It is also used for demonstrating an error that has occurred. The PWR
LED is normally turned on when the module works in a good condition.
For
different error conditions represented by the indicator LED, please refer to
Table 2-2.
(2) Wi-Fi LED :
This LED can indicate the Wi-Fi reception or transmission state of the
I-7540D-WF. When I-7540D-WF is in Wi-Fi sending or receiving state, the
LED will blink.
(3) CAN LED :
This LED can indicate the CAN data reception or transmission state of
the I-7540D-WF. When I-7540D-WF is in CAN data sending or receiving
state, the LED will blink.
(4) WLAN LED :
This LED can indicate whether the I-7540D-WF’s WLAN connection is
established. When WLAN connection is established, the LED will be
normally on;
otherwise
, it will be flashing or off.
(5) CNT. LED :
This LED can indicate whether the I-7540D-WF’s TCP connection is
established. When TCP connection is established, the LED will be
normally on;
otherwise
, it will be flashing.
