Datasheet
Data Sheet
© 2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 12 of 13
Specification SR XFP LR XFP IR XFP
2
MM XFP
3
Type Distributed feedback,
direct modulation
(DFB/DM)
5
Electro
absorption
(EML)
Electro absorption
(EML)
Vertical Cavity
Surface Emitting
Laser Device
(VCSEL)
Output power (P
Tmin
to P
Tmax
) –8.2 to 0.5 dBm 0 to +4 dBm -1 to +2 dBm -7.3 to -1 dBm
Minimum required optical return loss
●
SONET/SDH
●
10GE/10G FC
24 dB
12 dB
24 dB
12 dB
24 dB
12 dB
12 dB
Minimum extinction ratio (r
eminx
) 6 dB 9 dB 8.2 dB 3 dB
Laser safety class 1 1 1 1
Optical receiver
Type PIN PIN PIN PIN
Sensitivity @ BER (P
Rmin
to P
Rmax
)
●
SONET/SDH
●
10 GE/10G FC
–11 to –1 dBm
–14.4 to +0.5 dBm
–24 to –7 dBm
–24 to –7 dBm
–14 to 2 dBm
–15.8 to -1 dBm
-9.9 to -1 dBm
Chromatic dispersion tolerance
(D
SRmax
)
6.6 ps/nm
(SONET/SDH)
1600 ps/nm
(SONET/SDH)
800 ps/nm
(SONET/SDH)
N/A
Minimum BER (BER
min
) 10E-12 10E-12 10E-12 10E-12
Maximum receiver reflectance –14 dB –14 dB –14 dB -12 dB
Input wavelength bandwidth (λ
c_rx
) 1290-1335 nm
6
1260-1565 nm 1530-1565 nm
7
840 to 860 nm
Connector type (Tx/Rx) LC, duplex LC, duplex LC, duplex LC, duplex
Table 5. DWDM Specifications
Specification DWDM Line Interface
DWDM Line Interface
Bit Rate 9.9532 ±50 ppm
10.3125 ±100 ppm
10.518 ±100 ppm
10.7092 ±100 ppm
11.0957 ±100 ppm
11.3168 ±100 ppm
Automatic laser shutdown and restart ITU-T G.664 (06/99)
Nominal wavelengths (λ
Tnom
) Full Tunable from 1529.55 to 1561.84 (C-Band – 50 GHz)
Full Tunable from 1570.83 to 1604.03 (L-Band – 50 GHz)
Spectral width @ 20dB (λ∆
20
) ≤25 GHz
Optical transmitter
Type Lithium niobate external modulator
Output power (P
Tmin
to P
Tmax
) +3 dBm, +6 dBm
Required optical return loss, minimum (ORL
min
) 27 dB
Extinction ratio, minimum (r
eminx
) >10.5 dB
Laser safety class 1
Optical receiver
Type Avalanche photo diode (APD)
Chromatic dispersion tolerance (DLR
max
) Up to ±1200 ps/nm
5
DFB/DM is typical but other technologies may be substituted if specifications are met.
6
Acceptable input wavelength range is 1290 to 1605 nm, but receiver sensitivity is guaranteed only for the
indicated range.
7
Acceptable input wavelength range is 1260 to 1565 nm, but receiver sensitivity is guaranteed only for the
indicated range.