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Gateway
2.4. RST Switch Functionality
The Reset (RST) key provided on the device is used for the following purposes:
1. Serial Port 1 Interface Selection
2. Restore Factory Default Settings
Depending on the time duration for which the RST key is pressed at power on, the particular
mode will be selected
Key Press Interval (T) Selected Mode
2 sec < T < 8 sec Serial Interface Selection Mode
8 sec < T < 12 sec Default Factory Settings Selection
12 sec < T Reset (RST) Key Fail Error
2.4.1 Serial Port1 Interface Selection
Serial Interface Selection Mode is used to select the different Serial Interface modes for
PORT1. The serial interfaces available for port 1 are RS232, RS422 and RS485. Ensure that
the Serial Selection Mode is ‘Unlocked’ in the Driver 1 settings page on the Web
browser.
To configure the serial interface option,
1. Press RST switch & then power ON. Keep the RST switch pressed for 2-8 sec.
2. Error LED glows continuously during Serial Interface Mode selection.
3. Heart Beat (HB) LED starts blinking (150 ms ON & 150 ms OFF) indicating that the
device has entered into Serial Selection Mode.
4. Press and release RST switch to select a particular serial interface option which is
indicated by the MODE LED.
Depending on the number of times the RST key is pressed after the HB LED starts blinking,
the particular mode will be selected.
No. Of times RST key is pressed LED Color Interface Mode
1 Red RS422 Interface mode
2 Orange RS485 Interface mode
3 Green RS232 Interface mode
5. After selecting a particular serial interface, user has to wait for 5 seconds to confirm
the selection which is indicated by fast blinking MODE LED in Orange color. The
device will then run in normal mode which is indicated by the blinking Heart Beat
(HB). (800 ms ON and 800 ms OFF).
6. The MODE LED glows continuously in the selected serial interface color.
