User Guide: PTP 600 Series
Data rate calculations
phn-0896_012v000
Jul 2010
4-115
Calculation procedure and example
Procedure
To calculate the data rate capacity of a PTP 600 link, perform
Procedure 4-1
.
Procedure 4-1 Calculating data rate capacity
1
Use the tables in
Data throughput capacity
on page
4-117
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
4-128
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.
4Gon www.4Gon.co.uk info@4gon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299