Westermo ODW-621, Руководство пользователя, Страница: 13 / 20

13
6650-2223
FX (Fibre) SM-LC80 SM-LC40 SM-LC15 MM-LC2
Fibre connector LC duplex LC duplex LC duplex LC duplex
Fibre type Singlemode
9/125
μ
m
Singlemode
9/125
μ
m
Singlemode
9/125
μ
m
Multimode,
62.5/125 and
50/125
μ
m
Wavelength nm 1550 1310 1310 1310
Transmitter
Output optical power min/max –5/0 dBm** –5/0 dBm** –15/–8 dBm** –20/–14 dBm*
Receiver
Input sensitivity, max –34 dBm –34 dBm –31 dBm –31 dBm
Receiver
Input optical power, max –5 dBm*** –3 dBm*** –8 dBm –8 dBm
Optical power budget,
worst-case 29 dB 29 dB 16 dB 11 dB
Transceiver type Small Form Factor Pluggable (SFP)
Multi-Sourcing Agreement (MSA) compliant
Laser class Class 1, IEC 825-1 Accessible Emission Limit (AEL)
Optical Power Budget
The allowed link length is calculated from the optical power budget (OPB), the available optical
power for a fibre-optic link, and the attenuation of the fibre, comprising losses due to in-line
connectors, splices, optical switches and a margin for link ageing (typical 1.5 dB for 1300 nm).
The worst-case optical power budget (OPB) in dB for a fibre-optic link is determined by the differ-
ence between the transmitter’s output optical power (min) and the receiver input sensitivity (max).
FX (Fibre)
Bi-di
LC-60
Bi-di
LC-40
Bi-di
LC-20
Bi-di
MM LC-2
Fibre connector LC Simplex LC Simplex LC Simplex LC Simplex
Fibre type Singlemode
9/125 μm Singlemode
9/125 μm Singlemode
9/125 μm Multimode
62.5/125 and
50/125 μm
Wavelength nm, connector 1
Wavelength nm, connector 2 Tx 1310, rx
1550 Tx 1550,
rx 1310 Tx 1310, rx
1550 Tx 1550,
rx 1310 Tx1310, rx
1550 TX
1550, rx 1310 Tx 1310, rx
1550 Tx 1550,
rx 1310
Transmitter
Output optical power min/max –5/0 dBm ** –8/0 dBm ** -10/0 dBm ** –10/–8 dBm *
Receiver
Input sensitivity, max –34 dBm –34 dBm –28 dBm –28 dBm
Receiver
Input optical power, max 0 dBm*** 0 dBm*** 0 dBm –0 dBm
Optical power budget,
worst-case 29 dB 26 dB 18 dB 18 dB
Transceiver type Small Form Factor Pluggable (SFP)
Multi-Sourcing Agreement (MSA) compliant
Laser class Class 1, IEC 825-1 Accessible Emission Limit (AEL)
* Output power is power coupled into a 62.5/125
μ
m multimode fibre
** Output power is power coupled into a 9/125
μ
m singlemode fibre
*** The optical power should be reduced by at least 5 dB (SM-LC80 and Bi-di LC-60) or 3dB (SM-LC-40
and Bi-di LC-40) between the optical output and input.