DB120 4-Port Ethernet ADSL MODEM USER MANUAL (V1.
ABOUT ADSL ADSL MODEM is a broadband Internet access device, which utilizes the high frequency segment of the phone line to transmit high-speed data without interfering with the voice transmission. The frequency of ADSL signal is higher than that of voice, so voice and ADSL signal can coexist in one line by using a splitter to insulate each from the other. ADSL data transfer on the asymmetry way. The upload speed is up to 1Mbps and download speed is up to 8 Mbps. It is an ideal device for broadband access.
• RFC1483 1483 bridged/routed LLCSNAP / VCMUX • RFC1577 Classical IP over ATM Exterior Interface • 4-Port Ethernet Interface (RJ45) • Line Interface (RJ-11) • Power Interface (DC 12V) Environment Requirements • Working Temperature: 0? - 40? • Saving Temperature: -40? - 65? • Operating Humidity: 30% - 90% • Non-operating Humidity: 0% - 95% (40? ) FCC Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
DEVICE INTRODUCTION Figure 1 POWER Indicator 4-ETHERNET Port LINK Indicator DATA Indicator Power Switch Power Jack PC Indicator LINE Port Interface Introduction: ? POWER Indicator (red): A steady red light means the power connection works properly. ? LINK Indicator (Tri-color): Shows DSL line status. Red led flashing means the DSL line is in handshaking state. Red fast flashing means the DSL line is in training state. Red led steady light means the modem is in good connection by common rate (ITU-T G.
CONNECTION and USING SYSTEM REQUIREMENT • A computer with a network card with Ethernet interface. HARDWARE CONNECTION This device is no need to configure and you can follow the steps below to finish the hardware connection: 1. Connect Ethernet port? of the ADSL MODEM to 10/100BASE-T port of the computer using the network cable that comes with the modem. 2. Use a telephone cord to connect the LINE port of the splitter and the RJ-11 port (the phone jack) on the wall. 3.
TROUBLESHOOTING Phenomena Solution 1. Make sure the switch of power supply is turned on. 2. Make sure the connection of power supply is good. 3. Make sure the output of power supply is correct. The indicator of power supply is not on The indicator of LINK is not fast flashing 1. 1. The indicator of PC is not on 2. Can not access Internet or remote 1. networks 2. Make sure the connection of telephone cord is current. Check the connection between the cable and the network card.
