DBL`s Service Manual
Contents
1. of the device chassis case cC Open the top case carefully and then locate a 4 pin SIP pads see the sample picture below that are located either on the bottom or the top PCB depending on your device However there is only one 4 pin SIP pads as labeled as J1 in the picture below By convention the square pad is pin 1 TxD and the last pad in the row is pin 4 GND PPE E EE REE DE Ui dee er dea Chee CeLeren d Plug the COM cable into the 4 pin SIP pads as shown in the picture below Please make sure that the connector with the side painted in BLACK pin 4 is aligned with the round pad as shown in the picture below F m T 4 3 z oe gt Cex Wier ee oia Blan al ee il ee NAPPY TORRE REE ES ECLI i e Apply pressure to the connector by tilting it to one side and hold it with a piece of tape as shown in the picture above f The other side of the COM cable is a DB9 female connector You can connect it directly to a PC that has a COM port Use the extension cable if needed If you don t have a COM port in your computer you can use the USB to Serial Adapter that is included in the cable kit g Ifyou are using the US to Serial Adapter you need to install the driver first Please download the driver from the URL below http 118 142 51 162 update USBCOM driver rar After you have installed the driver please view the setting for Ports COM amp LPT in the Device Manage under Control Panel to make sure2. DBL s Service Manual Warnings This manual is intended to guide a technicians or customers who would like to repair DBL s devices GoIP SIM Bank FXS FXO gateways at his her own risk DBL SHALL NOT be held responsible for any damages as a result of the repair action described below 1 Restoring FLASH with Corrupted Image Symptoms for corrupted FLASH image O AIILEDs lights up without blinking and the device does not reboot itself When the above symptoms occurs please contact technical support suport dbltek com to verify if the FLASH image is corrupted To restore corrupted FLASH image you need setup your device for COM port access You need to build or purchase a special COM cable so that your PC can communicate with the device via the COM port Since both COM ports your device and PC operates at different voltage levels this special COM cable handles the voltage conversions The circuit schematics of this cable is shown below TxD gt VDD ais GND call ia j m Lt acs de ka as Aa 10k T GAD If you do not want to build your COM cable you can purchase the COM cable kit from DBL This cable kit consists of the following items a Aspecial COM cable When you have the cables required ready please follow the following procedures carefully to setup your device a Disconnect the power to the device b Use a proper size Phillips screwdriver to take out all screws that are located at the bottom
3. ady for restoring FLASH image Please contact our technical support via email first support dbltek com When we try to restore FLASH image we will to real time communications Please also setup set up Skype to communicate with us directly Skype ID support dbl Notice pl help us to access autoboot command power it on then you must press any key to access it information like this Watchdog setup Hit any key to stop autoboot O0 Watchdog setup Booting image at 80030000
4. om en index html http 118 142 51 162 update AA_v3 5 exe If you have any concerns we could try to use another Remote Desktop software However this may cause additional time to setup on our side j To test the COM port communications please execute PuTTY with the settings shown below Click Open to execute PuTTY E PuTTY Configuration j Session Terminal Features E Window Appearance A Colours Connection H SSH e ie Basic options for your PuTTY session Specify the destination you want to connect to Serial line Speed COM15 38400 Connection type Raw Telnet C Rlogin SSH Load save or delete a stored session Saved Sessions Serial Default Settings BL HK GolP4Test Golf dbl hk sip Close window on exit O Aways Never Only on clean exit ies PuTTY Configuration P Sol al Session Options controlling local seral lines _ Loaging Select a serial line El Terminal Serial line to connect to COM15 Configure the serial line i Features Window Speed baud Appearance Behaviour Translation Stop bits Colours ii Connection How control Data Telnet 2 Rlogin Data bits k You can now plug in the power to the device and boot up message from the device should be displayed in the PuTTY window Otherwise please double check on the hardware setup and the software configuration L Up to this point both hardware and computer are re
5. that the USB Serial Port is installed properly Please note the COM port number since you will need to use it when you try to setup a COM port communication software a Ports COM R LPT ee J Standard Serial over Bluetooth link COMS bis i Standard Serial over Bluetooth link COMA USB Serial Port COMLS5 TRE Den peccare h Here is a typical setup using the special COM cable and the USB to Serial adapter for restoring the FLASH image Ee NCS eee EE SA 7 S _ARMI1 V1 0 0 S H J Oi a xA 2013 12 05 Sp Ahsa i i Please still keep the power to the device unplug and start prepare your computer environment You will first need to download the following software utilities and save them to the desktop or the same directory There is no need to install these utilities 1 MINI SERVER This utility sets up your computer environment so that the flash image can be downloaded from when restoring the FLASH image http 118 142 51 162 update MiniWebServer exe 2 PUTTY This utility enable COM port communications with the device http 118 142 51 162 update PUTTY exe Remote Desktop Software and Remote Desktop Connection This utility enable PC to PC remote connection so that DBL s technical support can access your computer remote Your computer firewall or protection software may warn or block the download of exe file Please enable to download For more information please visit AMMYY s home page www ammyy c
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