Appendix A ’Technical Specifications’ — General Device Specifications
Amethyst III DTV Smart Switch 209
User Manual
General Device Specifications
Performances
Tabl e A -1 6 . Amethyst III Performances
Parameters Values
TS throughput
For TS over ASI
For TS over IP
Max bitrate received and transmitted
per Gigabit Ethernet interface
700 Mbps
Max bitrate received and associated
with TS over IP inputs
1.4 Gbps
Max monitored Table bitrate per
platform
10 Mbps
Transport Stream Data Rate per ASI
port
Min: 100 kbps
Max: 200 Mbps
Bitrate per SMPTE 310M port
19.4 Mbps
Latency (from ASI In to ASI Out)
When delay compensation is not enabled,
latency time depends on the bit rate:
684 μs for 3 Mbps
375 μs for 5 Mbps
206 μs for 10 Mbps
83 μs for 25 Mbps
55 μs for 38 Mbps
42 μs for 50 Mbps
IP latency
Out of Delay compensation and FEC activation:
< 1 ms
When FEC error correction is acti
vated, the
reordering and recovery mechanism requires a
buffer of 210 RTP packets. It introduces a latency
that depends on the bit rate.
When delay compensation is activated, the
latenc
y depends on the configuration. It is
indicated on the graph in the Switches
supervision tab in the GUI.
T2-MI Latency (from ASI In to ASI
Out)
32 ms
T2-MI Latency (from IP In to IP Out)
37 ms