Practical-1

Aim:- Installation of modems and start-up a new internet connection in a                     standalone machine.

Modem:- A modem is a  Modulator- Demodulator device or program that enables a computer to transmit data over, for example, telephone or cable lines. Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analogue waves.

                                        

Installation of modem:-

1.      Remove your old modem. Remember to uninstall any drivers associated with your old modem and reset your computer after doing so. Also, keep the cables since you might need them for your new modem.

                               

2.      Read the instructions. While this article can give you the basic steps for setting up your modem, every modem is different. Be sure to carefully read your instructions and follow the steps exactly to reduce headaches later.

3. Set the modem up. Place the modem in a location with good air circulation and away from other devices that may interfere with signals. Follow the instructions provided to connect the modem to the Cable or DSL line in your house.

               

4. Power the modem on. Once you’ve connected the modem to the service source, power it on by plugging it on and pressing the power button (if applicable).

                                              

                               

5. Connect your computer to the modem. Using an Ethernet cable, connect your computer to the internet or WAN port on the back of the modem. This will connect your computer directly to the internet.

6. Start the activation process. Depending on your modem and service provider, you may need to run a setup program before you use the modem.

New Internet connection in a Stand-alone machine.

1.     Wire the Network:-
The RMC75E and RMC150E use the IEEE 802.3 100BaseT hardware standard.  This means it runs at 100Mbaud on twisted pair wiring rated Category 5 or higher, and uses RJ45 connectors. Twisted pair networks generally use a star topology, which means that each device is wired to a single switch device.

2.      Select a network address and subnet mask.
By convention, the address ranges below are intended to be used for private networks. An address from these ranges is a good choice for the network address of a stand-alone control network.

·         10.0.0.0 - 10.255.255.255

·         172.16.0.0-172.31.255.255

·         192.168.0.0 - 192.168.255.255

3.      Assign local addresses for each device.
The IP address range from step 2 provides 254 IP addresses that can be assigned to the network devices. When assigning addresses, ensure that all devices have unique address. To avoid assigning the same IP address twice, record the IP address assignments for use later when you need to add or replace device.

4.      Enter the network parameters into each device.
The method of assigning the network parameters varies for each type of device. Use the IP address you have assigned, a subnet mask of 255.255.255.0, and leave the default gateway blank for each device.