Optical Line Monitoring

C-LIGHT Optical Line Monitoring (OLM) is a critical monitoring technology for fiber-optic communication networks. It evaluates the health status of optical fiber lines by analyzing real-time optical signal parameters such as optical power, loss, and reflections. Typically utilizing tools like Optical Time Domain Reflectometers (OTDR), OLM accurately locates issues such as fiber breaks, bends, or connector failures, while providing early warnings and diagnostic functions. This enhances network reliability, reduces fault recovery time, and lowers maintenance costs. Widely applied in telecommunications, data centers, and industrial communications, OLM is an essential component of intelligent optical network management.

3-year warranty Long term maintenance

Technical Support Professional free technical guidance

100% detection Each module is 100% tested

Spot stock Always in stock, short delivery time

Technical Support

Product Details

CL-OTN-3900 optical cable monitoring system combines optical cable monitoring, alarm, fault analysis, positioning, fault management, line maintenance and line management to ensure the safe and efficient operation of the optical cable network. It can automatically monitor the communication optical cable 24 hours a day and automatically switch and protect the optical fiber. It can timely and accurately report the sudden optical cable fault, effectively shorten the fault duration, and It is necessary to find the potential faults that are hidden and not yet detected, but will cause communication interruption, and give accurate early warning, so as to achieve active maintenance and take preventive measures.
Product Feature		Product Diagram
lHigh integration Business card precision design, small size, high density. lStrong versatility It supports dozens of cards and is compatible with OTN and OLM. lDiversified product forms It can provide different product forms of 1RU, 2RU,3RU, 5RU, suitable for different application combinations. lFlexible upgrading and expansion It adopts plug and play design, easy to use, easy to upgrade, and short cycle of new function card.
Schematic Diagram

Main business card parameters
Diagram	Item	Parameter
CLOTN39-OTDR	OTDR	Central wavelength	1550nm±20nm/ 1625±20nm
		Event blind area	≤1.2m
		Attenuation blind area	≤6m
		Minimum sampling interval	0.125m
		dynamic range	32/36/38/40/42/45/50dB
		Maximum number of samples	32K
		Test accuracy	±(0.75+5×10-5× distance + sampling resolution)m
		Pulse width	5,10,20,40,80,160,320,6401280,2560,5120,10240,20480
CLOTN39-OSW-xxx	OSW	IL	Typ: = 0.8 dB, Max:<1.2 db
		Repeatability	≤±0.05dB
		Operating Wavelength	1260~1650nm
		Switching time	≤10m s(Sequential Switching)
CLOTN39-OPMxx	OPM (OPD/OPC）	Number of channels	2/4/8/12/16/24(OPC off-line)
		Number of channels	2/4/8/12(OPD on-line)
		Calibration wavelength	1310nm / 1550 nm
		Power range	-70 ~ +3 dBm(OPC off-line)
		Power range	-50 ~ +23dBm(OPD on-line)
		Accuracy	±5%
CLOTN39-OS-xx	OS	Number of channels	2/4/8/12/16/18
		Wavelength	1550 nm
		Output power	-7 ~ +3 dBm
		Short term output stability	±0. 03dB/15min
		Long term stability	±0.1dB/8h (20℃)
		Optical output mode	Continuous output
	WDM	Number of channels	4/8/12/16
		Transmission wavelength	1625nm
		Reflection wavelength	1310/1490/1550nm
		Transmission bandwidth IL	≤1.0dB
		Reflection bandwidth IL	≤0.80dB
		Transmission bandwidth	≥30dB
		Reflection bandwidth isolation	≥15dB
	Filte	Optical interface	LC/SC
		Transmission wavelength	1260-1600nm
		Reflection wavelength	1625±5nm
		Transmission bandwidth IL	≤1.0dB
		Reflection bandwidth isolation	≥21dB
The Network Management Of OLM
Combined with the monitoring system software function, it provides powerful OTDR optical fiber real-time, online, automatic monitoring function, GIS map auxiliary resource management function, provides multiple alarm reporting mode, provides an effective means of optical fiber network monitoring and maintenance for relevant departments, assists managers to comprehensively grasp the quality status of optical fiber network, and greatly improves the operation and maintenance performance and communication quality.


Decision support information: provide core line deterioration analysis, time deterioration analysis, fault type and cause statistics and other decision support functions.