Dimetra EBTS Site Controller » History » Revision 2
Revision 1 (laforge, 02/19/2016 10:52 PM) → Revision 2/12 (laforge, 02/19/2016 10:52 PM)
= Integrated Site Controller (CLN1480A) = This is a unit that interfaces up to 8 Base Radios with the core network of the Dimetra TETRA network (SwMI). Hardware-wise, it is a PowerPC based system, looking very much like an old-fashioned PC mainboard with both ISA and PCI slots. The mainboard houses the PowerPC CPU and it has slots for RAM. There are some extension cards plugged into the system: * Clock generation card (ISA, full length). * o has an integrated GPS receiver, to which you attach a GPS antenna * o generates the reference 5MHz clock distributed over Coaxial cable to the Base Radios * Ethernet Card using DEC tulip chipset (PCI) * o This card is what talks to the Base Radios (BR) via 10-Base-2 * Unknown card with RJ-45 jack (REDUND) on the back. Might be E1 There are further inputs and outputs on the system: * A DB-15 jack for X.21 synchronous serial backhaul (2048Mbps) * FIXME * A RS-232 serial port for local configuration == Images ==