Ericsson Minilink » History » Version 1
admin, 02/19/2016 10:52 PM
add page about mini-link
1 | 1 | admin | = Ericsson Mini-Link = |
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3 | Ericsson Mini-Link is a series of commercially very successful microwave links. |
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5 | They are used world-wide for back-hauling GSM BTS and UMTS Node-B, i.e. for the |
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6 | A-bis and IuB-links. |
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8 | Every microwave link is a point-to-point link. |
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10 | Each side of the link has an IDU (In Door Unit) and ODU (Out Door Unit). |
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12 | === IDU === |
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13 | The IDU is responsible for transmitting and receiving at the respective microwave frequency (normally 7...38GHz). |
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15 | In the Mini-Link system they are most commonly they are called MMU. |
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17 | There are different types of MMUs, representing the different link speeds of the microwave link, e.g. |
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18 | * MMU 34+2 (1 E3 link at 34 Mbps plus 1 E1 link for mgmt) |
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19 | * MMU 4x2 (4 E1 links at each 2 Mbps) |
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21 | The MMU has connections for the data links (E1, E3, STM-1, etc.) as well as a coaxial wire connecting it with the |
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22 | ODU. |
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24 | === ODU === |
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25 | The ODU is contains the actual modem that modulates the E1, E3 or STM-1 link onto the IF (Intermediate Frequency) |
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26 | which is put on the coaxial link towards the ODU. |
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28 | Conversely, on a different IF, there is the down-link from the ODU towards the demodulator/decoder in the IDU. |
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30 | In the Mini-Link system, the ODU is commonly called RAU (Radio Access Unit). |
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31 | |||
32 | == Mini-Link Equipment that we have == |
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33 | |||
34 | === RAU === |
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35 | |||
36 | ==== 15 GHz ==== |
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37 | ||1||RAU 15/13||LaForge|| |
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38 | ||1||RAU 15/16||LaForge|| |
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39 | |||
40 | ==== 26 GHz ==== |
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41 | ||1||RAU 26/24||LaForge|| |
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42 | ||1||RAU 26/29||LaForge|| |
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43 | |||
44 | ==== 23 GHz ==== |
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45 | ||1||RAU2 M 23/77||LaForge|| |
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46 | ||1||RAU2 M 23/79||LaForge|| |
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47 | |||
48 | === MMU === |
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49 | ||3||MMU 34+2||LaForge|| |
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50 | |||
51 | === SMU === |
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52 | ||2||SMU 16x2||LaForge|| |