ZXDSL 9210 (V3.1) Broadband Universal Access Equipment Technical Manual
3-10
60 to 80MHz: > 10dB
z
Common mode rejection capability
The input end must be able to resist sinusoidal common mode interference with
the frequency of 0 to 125MHz and amplitude of 1.0Vpp.
3.1.4.4 100BASE-FX Interface Indices
1. General characteristics of the 100M optical interface
Rate: 100 Mbit/s
Format: 100BASE-FX(IEEE802.3u)
Mode: Multimode or single-mode
Connector: LC
Standards applicable to optical interface: SAMI interface
2. Optical
interface
parameters
1) Table 3.1-3 shows the parameters of the 100M Ethernet multimode optical
interface (transmitting). Table 3.1-4 shows the parameters of the 100M Ethernet
multimode optical interface (receiving).
Table 3.1-3 Parameters of 100M Ethernet Multimode Optical Interface (Transmitting)
Parameter
Symbol
Min. Value Typical Value Max. Value Unit
Optical power output
62.5/125µm, NA=0.275 EOL
P
O
-19
-20
-15.7
-14
dBm
Optical power output
62.5/125µm, NA=0.20 EOL
P
O
-22.5
-22.5
-14
dBm
Extinction ratio
0.05 -50
0.2 -35
% dB
“0” code output optical power
P
O
("0")
-45
dBm
(average)
Central wavelength (nm)
λ
c
1270
1308
1380
nm
Spectrum width- FWHM –RMS
∆
λ
147
63
ns
Optical pulse rise time
t
r
0.6
1.2 3
ns
Optical pulse fall time
t
f
0.6
2 3
ns
Transmitter system jitter
SJ
0.04
1.2
ns p-p
Transmitter random jitter
RJ
0
0.52
ns p-p
