1. Introduction Repeaters are used to fill out uncovered areas in cellular mobile systems, such as base station fringe areas, road tunnels, business and industrial buildings, etc. A repeater receives signals from a base station, amplifies and retransmits the signals to mobile stations.
Longent dual-band selective repeaters with 2 adjustable bandwidths have filters that can be set to various bandwidths. This repeater type is suitable for the most carriers that need 2 band blocks support in 800 MHz cellular band. Figure 3 Longent Repeater 1.1.
2.4. Environmental Specifications -25 to +55 ℃ Temperature Range Humidity 95%, Relative Casing Class IP53 2.5. Monitor and Control Monitor Output Power ALC Attenuation DGC Attenuation PA Enable PA temperature VSWR Band Setting Used Gain Control ALC level DGC Attenuation PA Enable Band Setting Alarm...
The signal from the base station is received via the repeater donor (BS) antenna and is then forwarded through a directional coupler (DC). The signal passes a duplex filter (DPX), is amplified in a low noise amplifier (LNA), and enters the band selective amplifier (BSA), which has two parallel bands.
4. Installation A preferable site for the repeater is a tempered and ventilated place. If a repeater is placed outdoor and can be exposed to direct sunshine, it is essential that the air can circulate around the repeater with no obstacle. Do not install or open a repeater at bad weather, such as intense rainfall, snowfall or hail, storm or high wind, extremely low or high temperature and high humidity.
4.2. Connection 1. Connect antennas Connect the service antenna (MS) and donor antenna (BS) coaxial cables to the N type female connectors marked with MS and BS. 2. Connect repeater to AC supply Plug in the power connector on the bottom of the repeater. 3.
5. Operation and Maintenance 5.1. WEB Interface 5.1.1. Introduction Longent repeaters allow you to read and modify the current status via local WEB as well as remote SNMP. The main program features: Supporting local WEB interface to show and modify the status value Supporting Http 1.0 Supporting remote SNMP to show and modify the status value Supporting SNMP versions 1, 2.
5.1.3. Environment Configuration The repeater uses the WEB interface to configuration. It used the static IP. Default IP is 192.168.15.15. So your computer must use the static IP too and the same subnet mask (255.255.255.0). Your computer can use all the IP from 192.168.15.1 to 192.168.15.254 except the repeater’s one (default is 192.168.15.15).
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In the “Network Connections” window, right click the “Local Area Connection” and choose the “Properties” in the pop menu. Ver. 0...
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In the “Local Area Connection Properties”, there is a “General” page. In this page, choose the “Internet Protocol(TCP/IP)” in the “This connection uses the following items” list. Click the “Properties” button. Ver. 0...
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In this “Internet Protocol (TCP/IP) Properties” page, choose the “Use the following IP address”, and sign the “IP address” like 192.168.15.14 and “Subnet mask” 255.255.255.0. Others are empty. Press the “OK” button, you’ll finish the configuration. Now you can use a cross cable to connect your computer and the repeater. You can use IE to read and notify the repeater information.
5.1.4. Basic Operation of WEB Interface After configuration is done, you’re able to use IE to read and notify the repeater information. Open a new IE. Input the http://192.168.15.15 (or http:// IP you had set before) in the “Address”. Ver. 0...
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The IE will show the “Station WEB” page. Login The first page is the “Login” page. You must input the correct user name and password. Then you will press the “Enter” or “login” to login. Ver. 0...
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Station View Page If you input the right user name and password, the page will jump to the main page – “Station View Page”. This page has two parts divided by a line. The top part is the link to other operation page. The other is showing the station information.
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Read the repeater status If you press the Read Status link, wait for a minute, the page will refresh and show the new status of the repeater. Note: If there are some wrong strings or illegal strings on the page, please press the “refresh” on the IE, and then the page will show the right one.
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Configuration the repeater IP If you press the Configuration Repeater IP link, you will in the Configuration Repeater IP page. In this page you can change the IP that you next time connect to. There are two links in the Configuration Repeater: View Page Return the view page and do nothing of configuration.
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Configuration the Modem If you press the Configuration Modem link, you will in the Configuration Modem page. In this page you can change the IP that you next time connect to. There are two links in the Configuration Repeater: View Page Return the view page and do nothing of configuration.
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Federal Communications Commission 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. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
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