1850Tss-320/160 Engeneering Rules; Transponder Performances - Alcatel-Lucent 1850 TSS-320 Engineering Rules

1850TSS-320/160 engeneering rules

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Minimum number of channels
As amplifier tuning is not linear down to 1 channel, in order to avoid critical non linear
effects, the minimum number of channels should be limited.
If transmission with 1 channel is mandatory, it is required to place fixed attenuators at
each span input, so reducing span budget.
Chromatic Dispersion mapping
The DCM are placed in the amplifiers interstage in order to compensate about 90% of
each span. Pre-compensation should be 30Km DCM when possible
Transponders interworking
Each wavelength must be originated and terminated by transponders of the same
technology. As PP10GSO and PP10GE are the WDM tributaries and the technology is the
same, they can interwork.

Transponder performances

Table 2-2 Transponder performances
Transponder / unit
PP10GSO (XFP w/o FEC)
PP10GE (XFP w/o FEC)
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2 - 2
8 channels max
# of Ch Power [dBm]
16 channels max
# of Ch
10
11
12
13
14
15
16
tOSNR Max. cumulated power
28.6 dB 11 dBm
28.6 dB 11 dBm
Main DWDM features
Power [dBm]
15.0
15.4
15.8
16.1
16.4
16.7
17.0
PN 8DG 08763 GAAA
Issue 1 March 2009