User's Guide Part 2

Data rate calculations Chapter 4 Reference information
phn-0896_009v003
4-100
UNDER DEVELOPMENT
Feb 2010
Procedure 4-1 Calculating data rate capacity
1
Use the tables in
Data throughput capacity on page 4-102 to look up the
data throughput capacity rates (Tx, Rx and Both) for the required
combination of:
• Link Symmetry
• Link Mode Optimization
• Modulation Mode
• Channel Bandwidth
2
The tables contain data rates for PTP 600 Full only. If the ODUs are PTP
600 Lite, divide the data rates by 2.
3
The tables contain data rates for links of zero range. Use the curves in
Range adjustment curves on page 4-113 to look up the Throughput
Factor that must be applied to adjust the data rates for the actual range of
the link.
4
Multiply the data rates by the Throughput Factor to give the throughput
capacity of the link.
NOTE
There is a small difference between the rates for IP and TDM because there
is fragmentation in TDM (for low priority traffic) which causes the
throughput to be reduced buy approximately 1% compared to the IP mode.