How to fix ARMTEL DCN-2 Central Exchange Switch when the indicator of one of the ports E1 (1-16) is blinking red?
If the indicator of one of the E1 ports is blinking red, it means that the first (physical) level of the port is activated, but the second level of the protocol is not installed. To resolve this, check the configuration and correct the connection on the E1 stream.
Why is FUSE SYS indicator solid red on ARMTEL Switch?
The FUSE SYS indicator is solid red because the power FUSE SYS is burnt out. Replace the FUSE SYS to resolve this issue.
What to do if Board indicator 4E1 (S1…S4) flashing red on ARMTEL Switch?
If the 4E1 board indicator is flashing red, there is no communication between the 4E1 board and the CPU via the USB interface. Check the quality of the connection of the board in the connector or replace the board.
What to do if DSP1 indicator is off, red or green, flashing red on ARMTEL Switch?
If the DSP1 indicator is off, red, green, or flashing red, the DSP is faulty. Check the board connection in the connector, or replace the board.
How to fix ARMTEL Switch when you turn it on and DCN-2 LEDs do not light up?
If the DCN-2 LEDs do not light up when you turn on the ARMTEL Switch, it could be due to these reasons: * DCN-2 is not connected to a power source. Connect it to the power supply. * The DCN-2 power fuse is burnt out. Replace the main DCN-2 fuse.
What to do if Board indicator 4E1 (S1…S4) off, glowing red or green on ARMTEL Switch?
If the 4E1 board indicator is off, glowing red, or green, the 4E1 board is defective. It requires factory board repair, which may involve replacing the board.
What does it mean when the indicator of one of the ports E1 (1-16) glows red on ARMTEL DCN-2 Central Exchange?
If the indicator of one of the E1 ports glows red, the port E1 is faulty. Check the quality of the connection of the board in the connector.
What does Secondary power control indicator +5 V mean for ARMTEL DCN-2 Central Exchange?
If the secondary power control indicator +5 V is active, it means the secondary supply is not available, and repair of the DCN-2 is necessary.
What to do if ERR2 indicator (lower) lights red on ARMTEL DCN-2 Central Exchange?
If the ERR2 indicator is red, it indicates an external alarm. Find the cause and fix it.
What to do if ERR1 indicator (upper) solid red on ARMTEL DCN-2 Central Exchange?
If the ERR1 indicator is solid red, it could mean several things: * The CPU might be unhealthy, requiring DCN-2 repair. * The DSP could be defective. In this case, check the board connection in the connector or replace the board. * There might be no DSP communication with the CPU. Try restarting the DSP or consider factory repair of the DSP board (replace the board). * The 4E1 board might be defective, requiring factory repair (replace the board). * There might be no connection of the 4E1 Board with the CPU via the USB interface. Check the quality of the board connection or replace the board. * The subscriber device might be unavailable due to a broken communication line, device malfunction, or being disabled. Eliminate the broken communication line, connect the device, or rep...
Introduction to the DCN-2 Central Exchange user manual.
Safety rules and precautions for using the DCN-2.
Covers DCN-2 purpose, operation, features, specifications, and scope of supply.
Details on DCN-2 design, dimensions, versions, and key components like cables and boards.
Information on devices and modules that interface with the DCN-2.
Defines operating conditions, environmental limits, and preparation steps for the DCN-2.
Covers safety precautions during use and detailed instructions for installation and connection.
General procedures, safety rules, and precautions for maintaining the DCN-2.
Detailed steps for maintenance and checking the product's operational status.
Information on unscheduled repair procedures performed by the manufacturer.
Guidelines and precautions for transporting the DCN-2 product.
Conditions for storing the DCN-2 in its packaging and appropriate facilities.
Details on the DCN-2 connection cable, its purpose, and specifications.
Information regarding the DCN-2 power supply cable and its connector.
Instructions for the proper disposal of the DCN-2 electronic product.
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General