52
MA365 • Rev. A2
Tellabs
®
6325 Edge Node
3 Reference Information
Note:
*)Information on corresponding values of dispersion versus path pen-
alty can be made available upon request.
STM-4 transmission
characteristics
The following table describes the transmission characteristics of the modules
with STM-4 transceivers.
Mean launched power range
-5 to 0
-2 to +3
-2 to +3
0 to +5
0 to +5
dBm
Min. extinction ratio
8.2
8.2
8.2
8.2
8.2
dB
Pulse Mask
According to Fig.2/ G.957
Jitter Generation
G.813 option 1
Optical Path between S and R
Attenuation range
0 to 12
10 to 24
10 to 24
12 to 25
12 to 25
dB
Maximum dispersion *)
na
na
1200 -
1600
2400
1700
ps/nm
Min. opt. return loss of cable plant
at S (incl. conn.)
24
24
24
24
24
dB
Max. discrete reflectance between
S and R
-27
-27
-27
-27
-27
dB
Receiver at reference point R
Minimum point R sensitivity at
BER = 10
-10
-18
-27
-28
-28
-28
dBm
Min. overload
0
-9
-9
-7
-7
dBm
Max. optical path penalty *)
1
1
2
3
3
dB
Max. receiver reflectance mea-
sured at R
-27
-27
-27
-27
-27
dB
Jitter Tolerance
G.825
CID Immunity
According to Appendix 1 /G.958
Parameter
Value
Unit
Class
S-16.1
L-16.1
L-16.2
L-16.2
C-Band
CWDM
Parameter
Value
Unit
Class
S-4.1
L-4.1
L-4.2
L-4.2
C-Band
Specifications according to
G.957
Transceivers
TR-0004
TR-0005
TR-0006
TR-0017
Nominal Bit Rate
622080
±
20 ppm
kbit/s
Transmitter at reference point S
Source Type
MLM
SLM
SLM
SLM
