Siemens GSM-R Cab Radio » History » Version 21
laforge, 01/23/2023 09:22 PM
1 | 3 | laforge | {{>toc}} |
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2 | 1 | laforge | |
3 | 3 | laforge | h1. Siemens GSM-R CAB Radio |
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5 | Osmocom has been provided with two ancient Siemens GSM CAB Radio devices, i.e. the kind of MS installed fixed into a train engine. |
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7 | {{thumbnail(20230123_184656.jpg)}} |
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8 | {{thumbnail(20230123_184637.jpg)}} |
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11 | h2. Sub-Rack Hardware |
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13 | {{thumbnail(20230123_184513.jpg)}} |
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16 | h3. Backplane |
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18 | At the back of the sub-rack there's a custom back-plane to interconnect the various modules |
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20 | {{thumbnail(20230123_183101.jpg)}} |
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21 | {{thumbnail(20230123_182917.jpg)}} |
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23 | h3. High Voltage Power Supply Module |
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25 | This is a fully encapsulated, passive cooled, DC/DC converter with |
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26 | * Input voltage 65..150V |
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27 | * Two output voltage rails of 12V / 4A |
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29 | 4 | laforge | {{thumbnail(20230123_183623.jpg)}} |
30 | 3 | laforge | |
31 | 4 | laforge | |
32 | 3 | laforge | h3. 12V -> 5V DC/DC converter Module |
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34 | This is a circuit board that generates a 5V rail from 12V |
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36 | 4 | laforge | {{thumbnail(20230123_183545.jpg)}} |
37 | {{thumbnail(20230123_183508.jpg)}} |
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38 | 3 | laforge | |
39 | h3. GSM Modem Module |
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41 | This is a module implementing the actual GSM-R modem. It consts of two circuit boards: One digital and one analog/RF. |
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43 | 4 | laforge | {{thumbnail(20230123_184407.jpg)}} |
44 | {{thumbnail(20230123_184419.jpg)}} |
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45 | {{thumbnail(20230123_184432.jpg)}} |
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46 | {{thumbnail(20230123_184452.jpg)}} |
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48 | 3 | laforge | h4. Digital Board |
49 | 1 | laforge | |
50 | 5 | laforge | {{thumbnail(20230123_184241.jpg)}} |
51 | {{thumbnail(20230123_184021.jpg)}} |
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52 | {{thumbnail(20230123_184031.jpg)}} |
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53 | {{thumbnail(20230123_184051.jpg)}} |
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54 | {{thumbnail(20230123_184105.jpg)}} |
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55 | 3 | laforge | |
56 | h4. RF Board |
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58 | 6 | laforge | {{thumbnail(20230123_184153.jpg)}} |
59 | {{thumbnail(20230123_184143.jpg)}} |
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60 | {{thumbnail(20230123_184116.jpg)}} |
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61 | {{thumbnail(20230123_184003.jpg)}} |
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62 | {{thumbnail(20230123_183952.jpg)}} |
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63 | {{thumbnail(20230123_183940.jpg)}} |
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65 | 3 | laforge | h3. PC/104 embedded PC Module |
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67 | 1 | laforge | This is a carrier board hosting a PC/104 embedded x86 Mainboard. |
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69 | 7 | laforge | {{thumbnail(20230123_183800.jpg)}} |
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71 | 1 | laforge | h4. Carrier |
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73 | 7 | laforge | {{thumbnail(20230123_183641.jpg)}} |
74 | {{thumbnail(20230123_183815.jpg)}} |
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76 | 19 | laforge | We can see this carrier interfacing with |
77 | 21 | laforge | * the 8-bit lower portion of the ISA bus on the PC/104 connector (J4) |
78 | * COM1 (J4) |
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79 | * COM2 (J41) |
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80 | * COM3 (J50) |
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81 | * COM4 (J49) |
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82 | * Utility (J27) Mouse/Keyboard/Reset/Speaker |
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83 | |||
84 | 19 | laforge | |
85 | 1 | laforge | h4. PC/104 x86 SBC |
86 | 20 | laforge | |
87 | This is a swiss-made Digital-Logic MSM586SEV. |
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88 | * 586 compatible processor (AMD ELAN520) @ 133 MHz |
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89 | ** ELAN520 data sheet: attachment:22004b.pdf |
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90 | * 32 MByte SO-DIMM memory |
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91 | * 16 MByte M-Systems DiskOnChip MD-2202-D16 |
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92 | * 4x UART / COM port |
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93 | * 1x parallel port |
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94 | * 1x RTC |
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95 | * AT-keyboard, PS/2, Floppy, IDE interface |
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96 | * PC/104 bus |
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98 | |||
99 | Resources: |
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100 | * Data sheet: attachment:Microspace_Digital_Logic_MSM586SEN_Datasheet2_201872793522.pdf |
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101 | * Manual: attachment:Microspace_Digital_Logic_MSM586SEN_Manual_201872793522.pdf |
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104 | 1 | laforge | |
105 | 7 | laforge | {{thumbnail(20230123_183714.jpg)}} |
106 | {{thumbnail(20230123_183728.jpg)}} |
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107 | {{thumbnail(20230123_183747.jpg)}} |
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108 | 3 | laforge | |
109 | h3. I/O board |
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111 | This is a board that brings signals from the backplane and frontplane and brings them to connectors towards the main connector panel. |
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113 | 8 | laforge | {{thumbnail(20230123_183235.jpg)}} |
114 | {{thumbnail(20230123_183213.jpg)}} |
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115 | {{thumbnail(20230123_183139.jpg)}} |
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116 | {{thumbnail(20230123_183123.jpg)}} |
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117 | 13 | laforge | {{thumbnail(20230123_183252.jpg)}} |
118 | {{thumbnail(20230123_161713.jpg)}} |
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119 | {{thumbnail(20230123_161719.jpg)}} |
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120 | 8 | laforge | |
121 | 18 | laforge | We can see a number of SRDA05-6 TVS diode arrays as ESD protection measure, as well as some Datatronic LM201-1 signal transformers. |
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123 | 9 | laforge | h3. Audio PA + Relay board |
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125 | This board appears to contain an audio Power Amplifier |
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127 | {{thumbnail(20230123_183434.jpg)}} |
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128 | {{thumbnail(20230123_183356.jpg)}} |
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129 | {{thumbnail(20230123_183327.jpg)}} |
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130 | {{thumbnail(20230123_183316.jpg)}} |
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131 | {{thumbnail(20230123_183303.jpg)}} |
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132 | 3 | laforge | |
133 | 10 | laforge | |
134 | h3. Frontplane |
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136 | There's a board on the front side of the unit which interconnects the I/O board and the Relay / Audio PA board. |
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138 | {{thumbnail(20230123_183451.jpg)}} |
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139 | {{thumbnail(20230123_161142.jpg)}} |
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141 | 3 | laforge | h2. Handset Hardware |
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143 | 15 | laforge | The specific handset unit here was used for demo purposes ourside an actual train cab. So the auto-radio-looking user interface unit plus the receiver were mounted together with a 230V AC -> 110V DC power supply in an enclosure that you can connect to the subrack via two cables. |
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145 | 14 | laforge | {{thumbnail(20230123_211512.jpg)}} |
146 | {{thumbnail(20230123_211445.jpg)}} |
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147 | {{thumbnail(20230123_211422.jpg)}} |
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148 | {{thumbnail(20230123_211413.jpg)}} |
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149 | {{thumbnail(20230123_211433.jpg)}} |
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150 | 15 | laforge | {{thumbnail(20230123_211501.jpg)}} |
151 | 14 | laforge | |
152 | 1 | laforge | h3. Internal Pictures |
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154 | 14 | laforge | {{thumbnail(20230123_210832.jpg)}} |
155 | 15 | laforge | {{thumbnail(20230123_211353.jpg)}} |
156 | {{thumbnail(20230123_211321.jpg)}} |
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157 | {{thumbnail(20230123_211306.jpg)}} |
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158 | 3 | laforge | |
159 | 1 | laforge | h2. Connector pinout |
160 | 2 | laforge | |
161 | 12 | laforge | !20230123_184637.jpg! |
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163 | 2 | laforge | h3. EXT RADIO (DB-15 female) |
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165 | h3. SER I/O (DB-25 male) |
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166 | |||
167 | h3. HMI 1 (DB-25 female) |
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169 | 16 | laforge | This is the connector used to interconnect with the User Interface unit. HMI most likely means _Human Machine Interface_. |
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171 | 2 | laforge | h3. HMI 2 (DB-25 female) |
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173 | h3. MVB OUT (DB-9 female) |
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175 | 17 | laforge | This is internally wired 1:1 with the MVB IN connector. It likely contains an interface to the _Multifunction Vehicle Bus_ of the train. |
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177 | See https://en.wikipedia.org/wiki/Train_communication_network for details on MVB. |
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178 | |||
179 | 2 | laforge | h3. MVB IN (DB-9 female) |
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181 | h3. ANT (N) |
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183 | This a standdard 50-ohms N-type conector to connect to the GSM-R antenna. |
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185 | 1 | laforge | h3. PMU (DB-9 male) |
186 | 2 | laforge | |
187 | 3 | laforge | This connector is forwarded internally to the DB-9 connector on the front of the embedded PC. Probably serial console. |
188 | 2 | laforge | |
189 | h3. TRAIN POWER AND I/O (circular connector) |
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190 | 1 | laforge | |
191 | |_.Pin (ext)|_.Internal Connector|_.Internal Connector Pin|_.Wire color|_.Purpose| |
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192 | |H|PL6|1|rose|| |
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193 | |K|PL6|2|white|| |
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194 | |M|PL6|3|green|| |
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195 | |P|PL6|4|purple|| |
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196 | |S|PL6|5|blue|| |
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197 | |J|PL6|6|black|| |
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198 | |L|PL6|7|red|| |
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199 | |N|PL6|8|yellow|| |
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200 | |R|PL6|9|orange|| |
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201 | |B|PL6|10|green|| |
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202 | |T|PL7|1|white|| |
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203 | |d|PL7|2|green|| |
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204 | |F|PL7|4|blue|| |
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205 | |A|PL7|5|red|| |
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206 | |U|PL7|6|rose|| |
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207 | |e|PL7|7|blue|| |
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208 | |G|PL7|9|grey|| |
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209 | |C|PL7|10|yellow|| |
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210 | |V|PL8|1|white|| |
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211 | |D|PL8|3|purple|| |
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212 | |W|PL8|4|red|| |
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213 | |E|PL8|6|orange|| |
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214 | |c|PL9|1|orange|| |
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215 | |Z|PL9|2|rose|| |
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216 | |X|PL9|3|green|| |
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217 | |b|PL9|4|grey|| |
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218 | |a|PL9|5|red|| |
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219 | |Y|PL9|6|yellow|| |