WEC-3702I User Manual

8/12/2019 WEC-3702I User Manual

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Contents

1 Overview ................................................................................................................................ 1

1.1 Product Introduction .............................................................................................. 1

1.2 Product Features ..................................................................................................... 1

1.3 Package List............................................................................................................. 2

2 Hardware Description and Hardware Installation ........................................................... 3

2.1 Hardware Description ............................................................................................ 3

2.1.1 Front Panel and LED Indicator Status ................................................... 3

2.1.2 Rear Panel.................................................................................................. 4

2.2 System Requirements ............................................................................................. 5

2.3 Before You Install the CNU Device ....................................................................... 6

2.4 Connecting the CNU Device................................................................................... 6

2.4.1 Connecting RJ45 Interface....................................................................... 6

2.4.2 Connecting the Cable Interface ............................................................... 7

2.4.3 Connecting the TV Interface.................................................................... 7

2.4.4 Connecting the Power Adaptor................................................................ 7

2.5 Check the System Running Status......................................................................... 7

3 Application............................................................................................................................. 8

3.1 Using Coaxial High-pass/Low-pass Duplex Filter ............................................... 8

3.2 Access the Network and the Internet .................................................................... 9

4 Specifications ....................................................................................................................... 10

5 Important Safety Precautions............................................................................................ 12

6 Troubleshooting................................................................................................................... 14


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1 Overview

1.1 Product Introduction

WEC-3702I is a bridge device(also called CNU hereinafter) with double

Ethernet interfaces that connects standard 10/100Base T Ethernet and indoor

coaxial-cable. By the coaxial-cable, the CNU device can enable the network

devices (e.g. computer, router, switch, IP phone, and set top box) to access the

Internet.

1.2 Product Features

The CNU device provides data rate up to 200 Mbps, which can meet the strict

application requirements perfectly. The applications and features of the CNU

device are as follows:

Transmit two waves of different frequency bands in one cable. It can connect

any interface of CATV and provide TV and data signal;

Provide 210/100 Base T adaptive RJ 45 interfaces for connecting the

network devices, such as computer and set top box;

Support OFDM and multicarrier modulation schemes for stably transmitting

data in noisy environment;

Support 128-bit DES data encryption for protecting the security of data

transmission;

Compatible with Windows 2000, Windows XP, Linux, Mac OS X and other

operation systems that support Ethernet;

By connecting coaxial cable, data can be transmitted conveniently betweenone CNU device and one CBAT device;

Support SNMP management interface, through the front-end network

management system can easily manage and maintain;

Easy installation, plug and play, after the business opened the boot

configuration can be automatically synchronized;

Powerful data services, support 802.1Q, 802.1P, IGMP, flow control, to fully

meet the requirements of multi-service access for radio and television

operators;


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1.3 Package List

Please check whether your package list includes the following items:

1 x WEC-3702I CNU device

1 x Cat. 5 Ethernet cables with RJ-45 connectors at both ends

1 x power adapter (12V DC, 500mA)

1 x user manual


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2 Hardware Description and Hardware Installation

2.1 Hardware Description

2.1.1 Front Panel and LED Indicator Status

The indicators on the front panel of the CNU device indicate the status of

interfaces. You may solve the network problem by observing their status.

The front panel contains 5 indicators, including POWER, Ethernet (ETH1 and

ETH2), LINK, and DIAG. The indicators reflect the connection status of the power

supply, Ethernet, coaxial cable and physical link quality. See the following figure:


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The following table describes the indicators status on the front panel:

LED Color Status Description

Solid light Power supply is normalPOWER GreenOff The device is shut down

Solid light

The CNU device is connecting to other

devices via the Ethernet interface but

not communicating with them

Blink

The CNU device is receiving or

transmitting data via the Ethernet

interface

ETH1/ET

H2Green

OffThe CNU device is not connecting to

other devices via the Ethernet interface

Solid lightThe CNU device is connecting to CBAT

devices via the Cable interfaceLINK Green

OffThe CNU device is not connecting to

CBAT devices via the Cable interface

Solid

green

High quality physical link

DIAG

Red and

greenlights Solid red Bad quality physical link

2.1.2 Rear Panel

The following figure shows the rear panel of the CNU device:

The following table describes the interfaces and buttons on the rear panel of

the CNU device:


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Interface/Button Description

Power switch

POWER Power adapter: 12V DC, 500mA

ETH1ETH2 Ethernet RJ-45 Interface, for connecting computer

and other network device

TV It is used to connect to TV or set top box via the

coaxial cable

CABLE It is used to connect to the interface on the wall for

inputting the TV signal via the coaxial cable

2.2 System Requirements

Operation system: Windows 2000, Windows XP, Linux, Mac OS X and other

operation systems that support Ethernet

Ethernet connection: Your computer and other network devices should be

installed the network adapter with Ethernet interface


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2.3 Before You Install the CNU Device

Carefully open the package and verify that the items match the packing list. If

any item is lost or damaged, contact us or the local cable network company.

Ensure that all required tools and cables are ready. Please place the CNU device

on the desk or other planes with enough space.

Before you install the CNU device, please verify the appropriate running

conditions for the device installation, including power requirement, physical space

and other network devices. The installation requirements are as follows:

Input power requirement: 180V~220V AC/50Hz

Please put the CNU device in a dry, shady and cool place, and at least leave

enough space on each side for ventilation

The CNU device should avoid direct sunshine. Put the CNU device in an area

that is far away from the heat source and high electromagnetism interference

Please make sure that the required cables and linkers have been installed

2.4 Connecting the CNU Device

The CNU device includes 1 cable interface, 1 TV interface, 2 10/100 M

adaptive Ethernet interfaces, 1 power interface (12V DC) and 1 power switch.

2.4.1 Connecting RJ45 Interface

Use Cat. 5 Ethernet cables with RJ-45 connectors at both ends to connect theCNU device to computer, set top box, or other network devices that you want to

connect to the network. Please ensure that your computer and the relevant devices

have installed 10BASE-T or 100BASE-TX network interface card. Connect one end

of the cable to the RJ45 interface of the network interface card, and the other end

to the RJ45 Ethernet interface of the CNU device. When inserting the RJ45

connector into the interface, a sound of insertion indicates the RJ45 connector is

connected properly.


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Note:

Do not insert the telephone connector into any RJ45 interface. In that case,it will damage the CNU device. You must use the twisted pair that meets the

FCC standard.

2.4.2 Connecting the Cable Interface

Please use the standard cable with metric F connectors. Connect one end of

the cable to the interface for inputting TV signal, and the other end to the Cableinterface of the CNU device. When inserting the connector into the interfaces,

screw down the connectors and make sure that the connectors are connected

correctly and tightly.

2.4.3 Connecting the TV Interface

Use the coaxial cable to connect the TV set or the set top box to the TV

interface of the CNU device. Please screw down the connectors and make sure

that the connectors are connected correctly and tightly.

2.4.4 Connecting the Power Adaptor

The CNU device supports Hot Swap of RJ45 and coaxial cable interfaces.

When connecting the power adapter, please ensure the input voltage matches the

power adaptor.

Step 1 Connect one end of the power adapter to the power interface of the CNU

device, and the other end to the power socket.

Step 2 Turn on the power switch.

Step 3 Check whether the indicator on the front panel is on.

You can run the CNU device without the driver.

2.5 Check the System Running Status


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Please verify that all linked devices have established valid connections. The

CNU device monitors the connection status of interfaces. If any device has

correctly connected to the CNU device and is transmitting a connecting signal, the

corresponding indicator blinks. If a device connects to the CNU device and the

indicator does not light, please check the following items:

Please ensure that all the network cables, linkers, network devices are

correctly connected to the CNU device

When connecting cables to another network, please check the available

interfaces and the linked devices, to verify whether the relevant devices run

normally

The twisted-pair is not more than 100 meters (328 feet), and the coaxial cableis not more than 500m

3 Application

This chapter mainly describes the network application of the CNU device.

The transmission frequency range of the CNU device is 7.5MHz~30MHz. If thecoaxial network where the CNU device runs does not provide the dedicated

channel for transmitting data, you must check the transmission frequency of data

and the TV signal to avoid their interference. Although the CNU device provides

built-in duplex filter.

3.1 Using Coaxial High-pass/Low-pass Duplex Filter

The range of signal transmission frequency in the coaxial cable is

7.5MHz~30MHz. If the frequency interference occurs in this range, the signal of

other application services will be interfered. Therefore, a filter is needed to solve

the problem.

It is recommended that you use the filter on the transmission spot of TV signal,

to weaken the signal of the CNU device. The advantages of using the filter are as

follows:


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Separate the network of the CNU device from the other parts of the coaxial

underwork, or prevent the signal of the CNU device on the network from being

interfered.

Protect the CNU device from the interference of other transmission signals in

the same frequency range.

3.2 Access the Network and the Internet

The CNU device can connect to computer, router, switch, IP phone, set top

box, and other network devices via the coaxial cable. See the following figure:


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4 Specifications

Parameters Specification

Model WEC-3702I

Standard Ethernet standards: IEEE802.3IEEE802.3X

IEEE802.3u

EoC Protocol Compatible with HomePlug AV standard

Protocol TDMACSMA/CA

PHY Data Rate 200 Mbps

Modulation

Schemes

OFDM antinoise modulation, 1024/256/64/16/8-QAM

QPSKBPSKROBO

Data Channel 7.530MHz

Transmit Power 110 dBuV

Data Transfer Support data transfer between Ethernet and coaxial

networks

Transmission

Distance

500m60dB attenuation

Security 128-bit DES data encryption

VLAN IEEE802.1Q

QoS Support ToS and CoS data packet classification

Flow Control Support interface-based flow control

SNMP SNMPv2

Management Support layer 2 OAM management channel, network

management can be completed through the remote

NMS. Also CBAT centralized WEB and CLI

management is provided

LED Indicator Power,Ethernet,LINK,DIAG

User Interface 2 x RJ45 Ethernet interfaces

2 x F. Cat. Coaxial interfaces

Consumption 5W

Power Supply Input180V~220V AC /50Hz

Output12V DC0.5A

Environment

Requirements

Operation temperature0C50C

Storage temperature-20C70C

Operation humidity10%90%non-condensing

Storage humidity5%90%non-condensing


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Parameters Specification

Operation

System

Windows 2000, Windows XP, Linux, Mac OS X and

other operation systems that support Ethernet


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5 Important Safety Precautions

Please read the precautions carefully before you use the CNU device for the

first time.

WarningOnly professional technicians are allowed to maintain the device. Do not try

to open the CNU device or maintain the device by yourself, otherwise, it may

cause electric shock.

Please put the CNU device to a place with good ventilation. Avoid direct

sunshine

Do not put this device close to a place with radiant point, heat source, and

moisture

The apertures and openings on the CNU device are designed for ventilation.

To make the device run normally, do not cover these apertures and openings

Do not use the CNU device in the open air

Do not move the CNU device casually under any circumstance

Do not block the openings on the CNU device

When turning off the CNU device, please switch off the power of the CNU

device and pull out the power plug

Before cleaning the Salve device, please cut off the power supply and pull out

the power plug. Do not use water, oil paint thinner, benzene, alcohol or strong

cleansing agent to clean the CNU device, otherwise, it may damage the CNU

device. When cleaning, please use slightly damp and soft cloth to wipe theCNU device

If the CNU device has been damaged, please disconnect all the connections

of the CNU device and contact local network company and the after sales

service department of our company.

Possible reasons for causing troubles are as follows:

The power adapter is damaged

There are sundries in the CNU device


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There is fluid in the CNU device

User has not followed the user manual instruction


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6 Troubleshooting

The design concept of CNU device is trying to make the device run facilely and

reliably. The status of LED indicators on the front panel can help you to find the

troubles and further solve the problems. This chapter mainly describes some

solutions to the problems.

Problem Solution

The power indicator is off Check whether the power adapter correctly

connects to the CNU device and whether the

power switch is turned on Verify that the CNU device has directly

connected to the power socket and the

socket is available

Try to replace the socket

Ethernet indicator is off

or it blinks abnormally.

Whether the RJ-45 cable is correctly

connected

Whether the CNU device is in the working

mode

Link indicator is off or it

blinks abnormally

Please verify that the coaxial cable is connected

to the CNU device normally, or contact local

CATV company

Documents

WEC-3702I User Manual