System information

FCD 901 48
Issue R2A, 07.2009
XMP1 Release 5.5 System Description
SDH Expansion Module SCU
Aastra Proprietary Information Page 9-5
9.5 SDH Expansion Module SCU
9.5.1 STM-1 interface 155 Mbit/s
Laser class Laser Class 1
STM-1 interface Optical acc. to ITU-T G.957 and G.958
Transmission rate 155 520 kbit/s
Code Binary NRZ (optical interface)
Interfaces on the SCU module max. 2
Connector type LC (SFP module)
9.5.2 STM-1 interface 155 Mbit/s electrical
STM-1 interface electrical acc. to ITU G.703
Transmission rate 155 520 kbit/s
Code CMI (electrical interface)
Impedance 75 Ohms, coaxial
Interfaces on the SCU module max. 2
Connector type, SFP module 1.0/2.3 mm coaxial
Application class acc. to G.957: S1.1 L1.1 L1.2
Transmitter
Maximum Tx power – 8 dBm 0 dBm 0 dBm
Range < 15 km < 40 km < 80 km
Wavelength 1300 nm 1300 nm 1550 nm
Wavelength range 1266 . . 1360 nm 1263 . . 1360 nm 1480 . . 1580 nm
Spectral width < 4 nm < 1 nm < 1 nm
Side mode suppression - > 30 dB > 30 dB
Dynamic extinction ratio 8,2 dB 10 dB 10 dB
Maximum Tx power in case of a fault 2 mW 2 mW 2 mW
Receiver
Maximum optical input power
(BER <10
-10
)
– 8 dBm – 10 dBm – 10 dBm
Sensitivity – 28 dBm – 34 dBm – 34 dBm