1-61
Cisco MDS 9148S Multilayer Switch Hardware Installation Guide
OL-20185-01
Chapter 1 Technical Specifications
Note
When shorter distances of single-mode fiber are used, it might be necessary to insert an inline optical
attenuator in the link to avoid overloading the receiver.
Table 1-12
Optical Specifications for Cisco CWDM SFP Transceivers
Parameter
Symbo
l
Min.
Typical Max.
Units Notes
Transmitter central
wavelength
λ
c
(x-4)
(x+1)
(x+7)
nm
Available
center
wavelengths:
1470, 1490,
1510, 1530,
1550, 1570,
1590, 1610 nm
Wavelength
temperature
dependence
0.08
0.1
nm/°
C
Side-mode
suppression ratio
SMSR
30
dB
Transmitter optical
output power
P
out
0.0
5.0
dBm
Average power
coupled into
single-mode
fiber
Receiver optical
input power (BER
<10
-12
with PRBS
2
-7
–1)
P
in
-28.0
-7.0
dBm
@ 2.12 Gbps,
140°F (60°C)
case temp.
Receiver optical
input wavelength
λ
in
1450
1620
Nm
Transmitter
extinction ratio
OMI
9
dB
Dispersion penalty
at 60 km
2
dB
Dispersion penalty
at 100 km
2
db
@ 1.25 Gbps
3
dB
@ 2.12 Gbps