Changes between Version 43 and Version 44 of Hardware/bDomains/aGrid
- Timestamp:
- Nov 9, 2016, 10:01:34 PM (8 years ago)
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Hardware/bDomains/aGrid
v43 v44 45 45 ===== Synchronized Clock Reference (Octoclock) ===== 46 46 47 The Massive-MIMO mini-racks and several SDRs in the grid are connected to a GPS-disciplined clock reference system which gives the SDRs PPS (pulse per second) and 10MHz reference signals for synchronizing their internal oscillators. A tree-like topology with equal length cables ensures minimal deviation of the reference signals between connected devices. The following nodes are currently connected to this clock reference system:47 The Massive-MIMO mini-racks and several SDRs in the grid are connected to a GPS-disciplined clock reference system which gives the SDRs PPS (pulse per second) and 10MHz reference signals for synchronizing their internal oscillators. A tree-like topology with equal length cables ensures minimal deviation of the reference signals between connected devices. The following nodes have SDRs that are currently connected to this clock reference system: 48 48 49 49 || '''Location''' || '''Node''' || … … 51 51 || "1-20 Corner" || 1-19, 1-20, 2-19, 2-20, 3-19, 3-20, 4-19, 4-20 || 52 52 || "20-1 Corner" || 17-1, 17-2, 18-1, 18-2, 19-1,19-2, 20-1, 20-2 || 53 || "20-20 Corner" || 18- 20 ||53 || "20-20 Corner" || 18-19, 18-20, 19-19, 19-20, 20-19, 20-20 || 54 54 || Massive-MIMO Mini-Rack || 23-1, 23-2, 23-3, 23-4, 23-5, 23-6, 23-7, 23-8 ||