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Optical Transport Network
Optical Transform Unit
OEO Converter Repeater
Fiber Protection Systems
EDFA-Erbium Doped Fiber Amplifier
Fiber Protection Systems
Optical Bypass Protection
Optical Line Protection 1+1
Optical Line Protection 1-1
Optical Line Protection 1:1

Optical Line Protection 1:1

Optical line protection system is combined of OLP-Optical Line Protection and operation maintainance terminal, it can realize optical power monitoring, optical line auto-switching and network management etc. In optical communication network, OLP monitors optical power of optical fiber and standby optical fiber at real time. In case the current optical power of optical fiber is less than pre-set switching threshold value, then alarm is on and it would switch to standby optical fiber automatically to protect optical transmission system line. OLP can provide a  protection scheme for all routes and main lines easily with low cost, can protect all networks which needs optical line switching, all these above can make a optical communication network with no-block, high reliability, safety and high anti-disaster strength.


l Transparent transmission

l Automatic switching with no interruption

l With LCD screen and control panel

l With network management

l To increase network reliability and improve service quality

l Real-time monitoring power level of fiber

l Flexible schedule patch


Technical Information



Working wavelength (nm)

1310±50nm and 1550±50nm

Monitoring Power range (dBm)

23 ~ -50

Monitoring power accuracy (dB)


Monitoring power resolution (dB)


Return loss (dB)


PDL (dB)


WDL (dB)


Insertion loss (dB)

TX<1.2, RX<1.2

Switching time (ms)




Operating temperature (oC)

-10+60 oC

Storage temperature (oC)

-20+75 oC

Power supply (V)

DC(36-72)V and AC(85-264)V/50~60Hz, dual power supply

Power-down Condition

hold in working path or switch to backup path

Optical connectors



Standard 19´ 1U/4U




Ivy Huang

Mr. Hu