Dimetra EBTS Site Controller » History » Version 6
laforge, 02/19/2016 10:52 PM
| 1 | 4 | laforge | [[PageOutline]] |
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| 2 | 1 | laforge | = Integrated Site Controller (CLN1480A) = |
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| 4 | This is a unit that interfaces up to 8 Base Radios with the core network of the Dimetra TETRA network (SwMI). |
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| 6 | Hardware-wise, it is a PowerPC based system, looking very much like an old-fashioned PC mainboard with both ISA and PCI slots. |
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| 8 | The mainboard houses the PowerPC CPU and it has slots for RAM. |
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| 10 | There are some extension cards plugged into the system: |
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| 12 | 2 | laforge | * Clock generation card (ISA, full length). |
| 13 | * has an integrated GPS receiver, to which you attach a GPS antenna |
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| 14 | * generates the reference 5MHz clock distributed over Coaxial cable to the Base Radios |
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| 15 | * Ethernet Card using DEC tulip chipset (PCI) |
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| 16 | * This card is what talks to the Base Radios (BR) via 10-Base-2 |
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| 17 | * Unknown card with RJ-45 jack (REDUND) on the back. Might be E1 |
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| 18 | 1 | laforge | |
| 19 | There are further inputs and outputs on the system: |
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| 21 | * A DB-15 jack for X.21 synchronous serial backhaul (2048Mbps) |
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| 22 | * FIXME |
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| 23 | * A RS-232 serial port for local configuration |
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| 25 | == Images == |
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| 26 | 4 | laforge | === Site Controller top view (lid removed) === |
| 27 | 3 | laforge | [[Image(tetra_site_controller_open.jpg, 66%)]] |
| 28 | 4 | laforge | |
| 29 | === PCI Card with lots of Lucent chips === |
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| 30 | 5 | laforge | [[Image(tetra_site_controller_lucent_pcb_top.jpg, 50%)]] |
| 31 | [[Image(tetra_site_controller_lucent_pcb_bottom.jpg, 50%)]] |
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| 32 | 6 | laforge | |
| 33 | === PCI Ethernet card (10-Base-2) === |
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| 34 | [[Image(tetra_site_controller_ethernet_pcb_top.jpg, 50%)]] |
