User guide

Hardware Options and Software Licenses
• 100 Mbps and 1000 Mbps supported (full duplex only, both ports must be same
speed)
• Supports both UDP and RTP encapsulation
• Supports 188 bytes per TS packet
• Supports between 1 and 7 TS packets per frame
• Supports multicast via IGMP
• Automatically detects FEC mode
• Latency independent of FEC mode - minimal glitches on FEC mode change
• Latency dependent on frame rate (i.e. data rate and packets per frame) -
example latencies (excluding Remote Reflex mode), see Table 3.7.
Table 3.7 Latency vs Frame Rate
Packets Per Frame
Bit Rate (bps)
1 4 7
3,000,000 256.3 ms 641.4 ms 1,026.4 ms
30,000,000 140.8 ms 179.3 ms 217.8 ms
100,000,000 131.9 ms 143.4 ms 155.0 ms
Table 3.8 Example FEC Overheads
Overhead
Columns Rows
Col FEC Only Row and Col FEC
5 10 10.0% 30.0%
10 10 10.0% 20.0%
20 5 20.0% 25.0%
8 8 12.5% 25.0%
10 5 20.0% 30.0%
8 5 20.0% 32.5%
5 5 20.0% 40.0%
4 6 16.7% 41.7%
6 4 25.0% 41.7%
2/1553-FGC 101 1014 Uen B
3-10