Ericsson Minilink » History » Version 9
jolly, 02/19/2016 10:52 PM
1 | 9 | jolly | {{>toc}} |
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2 | 6 | admin | |
3 | 9 | jolly | *NOTE: All information here is collected by us, we have no contact or affiliation with Ericsson. We have no idea how accurate our information-gathering has been.* |
4 | 1 | admin | |
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6 | 9 | jolly | h1. Ericsson Mini-Link |
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9 | 1 | admin | Ericsson Mini-Link is a series of commercially very successful microwave links. |
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11 | They are used world-wide for back-hauling GSM BTS and UMTS Node-B, i.e. for the |
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12 | A-bis and IuB-links. |
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14 | Every microwave link is a point-to-point link. |
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16 | Each side of the link has an IDU (In Door Unit) and ODU (Out Door Unit). |
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18 | 9 | jolly | |
19 | h3. IDU (MMU) |
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21 | 1 | admin | The IDU is responsible for transmitting and receiving at the respective microwave frequency (normally 7...38GHz). |
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23 | In the Mini-Link system they are most commonly they are called MMU. |
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25 | There are different types of MMUs, representing the different link speeds of the microwave link, e.g. |
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26 | 9 | jolly | * MMU 34+2 (1 E3 link at 34 Mbps plus 1 E1 link for mgmt) |
27 | * MMU 4x2 (4 E1 links at each 2 Mbps) |
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28 | 1 | admin | |
29 | 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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30 | ODU. |
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32 | You can see photographs of the interior of a MMU in the following album: http://laforge.gnumonks.org/photoalbum/devices/ericsson_minilink/mmu_34_2/index.html |
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34 | 1 | admin | |
35 | 9 | jolly | h3. SMU |
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38 | 5 | admin | The SMU is a unit that aggregates SDH links, e.g. the SAU 16x2 aggregates 16 E1 links into one E3 |
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40 | 1 | admin | http://laforge.gnumonks.org/photoalbum/devices/ericsson_minilink/smu_16_2/index.html |
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42 | 9 | jolly | h3. SAU |
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45 | 1 | admin | The SAU can control various site-local digital input and outputs throug the management link. |
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47 | http://laforge.gnumonks.org/photoalbum/devices/ericsson_minilink/sau_exp1/index.html |
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49 | 9 | jolly | |
50 | h3. ODU (RAU) |
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52 | 1 | admin | The ODU is contains the actual modem that modulates the E1, E3 or STM-1 link onto the IF (Intermediate Frequency) |
53 | which is put on the coaxial link towards the ODU. |
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55 | Conversely, on a different IF, there is the down-link from the ODU towards the demodulator/decoder in the IDU. |
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57 | In the Mini-Link system, the ODU is commonly called RAU (Radio Access Unit). |
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60 | 9 | jolly | h2. Hardware Information |
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64 | h3. IF-Link between IDU and ODU |
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66 | 2 | admin | There are three intermediate frequencies (IFs) that are being used: |
67 | 9 | jolly | * Uplink IF at 350 MHz |
68 | * Downlink IF at 140 MHz |
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69 | * Control IF at low frequency |
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70 | 2 | admin | |
71 | |||
72 | 9 | jolly | h2. Mini-Link Equipment that we have |
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75 | |||
76 | h3. RAU |
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78 | 1 | admin | |
79 | 9 | jolly | |
80 | h4. 7 GHz |
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81 | |||
82 | 4 | jolly | ||Qty||Type||Tx (MHz)||Owner|| |
83 | 3 | jolly | ||1||RAU1 N 7/11||7426-7484||Jolly|| |
84 | 1 | admin | |
85 | 9 | jolly | |
86 | h4. 15 GHz |
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87 | |||
88 | 2 | admin | ||Qty||Type||Tx (MHz)||Owner|| |
89 | 1 | admin | ||1||RAU 15/13||14709.25-14823||LaForge (D)|| |
90 | ||1||RAU 15/16||15024.25-15138||LaForge (D)|| |
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91 | |||
92 | 9 | jolly | |
93 | h4. 18 GHz |
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94 | |||
95 | 1 | admin | ||Qty||Type||Tx (MHz)||Owner|| |
96 | ||1||RAU1 18/11||17706.5-18009.5||LaForge|| |
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97 | ||1||RAU1 18/15||18716.5-19019.5||LaForge|| |
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99 | 9 | jolly | |
100 | h4. 23 GHz |
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101 | |||
102 | 1 | admin | ||Qty||Type||Tx||Owner|| |
103 | ||1||RAU 23/56||22002.75-22513.75||Jolly|| |
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104 | 4 | jolly | ||1||RAU2 L 23/76||22002.75-22288||Jolly|| |
105 | ||1||RAU2 N 23/76||22002.75-22288||Jolly|| |
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106 | ||1||RAU2 M 23/77||22288-22590.75||LaForge|| |
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107 | 2 | admin | ||1||RAU2 M 23/79||23296-23598.75||LaForge|| |
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109 | 1 | admin | |
110 | 9 | jolly | |
111 | h4. 26 GHz |
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112 | |||
113 | 3 | jolly | ||Qty||Type||Tx (MHz)||Owner|| |
114 | 2 | admin | ||1||RAU 26/24||24995.25-25445||LaForge|| |
115 | 1 | admin | ||1||RAU 26/29||26003.25-26453||LaForge|| |
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117 | 9 | jolly | |
118 | h4. 38 GHz |
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119 | |||
120 | 1 | admin | ||Qty||Type||Tx (MHz)||Owner|| |
121 | ||1||RAU 38/12||37338-37619.75||Jolly|| |
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122 | ||1||RAU 38/16||38598-38879.75||Jolly|| |
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123 | 2 | admin | |
124 | 9 | jolly | |
125 | h3. MMU |
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126 | |||
127 | 4 | jolly | ||Qty||Type||Owner|| |
128 | ||3||MMU 34+2||LaForge|| |
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129 | 3 | jolly | ||6||MMU 34+2||Jolly|| |
130 | 1 | admin | ||3||MMU 155/16||Jolly|| |
131 | 2 | admin | ||3||MMU 155/128||Jolly|| |
132 | 1 | admin | ||2||MMU 4+2/8||LaForge (D)|| |
133 | 3 | jolly | |
134 | 9 | jolly | |
135 | h3. SMU |
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136 | |||
137 | 1 | admin | ||Qty||Type||Owner|| |
138 | ||2||SMU 16x2||LaForge|| |
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139 | 2 | admin | |
140 | 9 | jolly | |
141 | h3. SAU |
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142 | |||
143 | 7 | admin | ||Qty||Type||Owner|| |
144 | ||1||SAU 1 Exp||LaForge|| |
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145 | 8 | jolly | |
146 | 9 | jolly | |
147 | h3. Other (Not Ericsson) |
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148 | |||
149 | 1 | admin | ||Qty||Type||Owner|| |
150 | ||2||RAD 34M/E1||Jolly|| |