Home \ PRODUCTS \ Optical Line Protection \ Function Module _ 1+1 Protection Mode For developer

Function Module _ 1+1 Protection Mode For developer

Features: Intelligent function module,with complete business processing logic built-in
Fast Recovery,Less than 30ms
Power Off/On Latch Feature
Protect 1310±50nm/1550±50nm Multiple Wavelengths
Support Auto Return,Auto No Return,Manual/Forced Mode Optical Switch
Allow Users to Adjust the Decision Threshold Optical Switching Power
Real-time Monitoring Power Level of Fiber
Support WDM,OTN,PDH Systems

Compliance

Description
Specifications
Dimension
Ordering Information
Applications
Video

Funtion Module _ Optical Line Protection For Developer

This optical function module is specifically designed for developers. It is an intelligent module that incorporates business logic and features a serial communication interface. It offers great development convenience for OLP equipment manufacturers.

*If what you need is a ready-to-use device, please visit the following link to proceed.

Optical Line Protection Equipment, abbreviated as OLP, is a crucial device used to protect optical fiber communication lines. Its core function is to monitor the status of the primary optical fiber line in real time. When the primary optical fiber experiences an interruption or deteriorates in performance (such as increased loss), it automatically or manually switches the service signal to the backup optical fiber line, thereby ensuring the continuity and reliability of communication and achieving the "self-healing" capability of the communication network.

In simple terms, OLP is like equipping your core communication optical cable with a "backup tire" and an "automatic switching system". When the main road (the primary optical fiber) becomes impassable due to an accident (disconnection) or congestion (significantly increased loss), the system can instantly redirect the vehicles (optical signals) to the backup road (backup optical fiber), ensuring that the service does not cease.

Specification Differences

Features	1:1 OLP	1+1 OLP
Framework	One active fiber, one dark fiber	One active fiber, one dark fiber
Transmission Mode	Active fiber only	Both of active and dark fiber.
Receiving End Operation Principle	Primary fiber first	Primary fiber first
Switching Decision Maker	Both of sending and receiving end. (synchronization mechanism)	Receiving end only.
Triggering Condition	The optical loss in the active fiber exceeds the threshold	The optical loss in the active fiber exceeds the threshold
Switching Time	50ms	30ms

Optical Path Diagram

Parameter

Type	OLP-M-1+1
Wavelength Range	1260~1650
Insertion loss	R1→R 、 R2→R	≤1.2dB
	T→T1 、 T→T2	≤3.8dB
Polarization dependent loss	＜0.2dB
Wavelength dependent loss	＜0.3dB
Switching time	＜50ms
Switch cross talk	＞55 dB
PD report accuracy	±0.5dB (at -50 to 23 dBm)
Return loss	＞45 dB
Fiber type	Corning SMF-28, 250μm with 900μm loose tube
Fiber length	0.5m±0.01m
Connectors	LC/PC
Supervision interface	RS232
Switch type	Latching
Operating voltage	12V
Operating Temperature	-5 ~ 60 °C
Storage Temperature	-30 ~ 80 °C
Package Dimension	120×80×18mm

Pin Definition

Pin#		Signal name	Type	Description
1	2	+12V	Power	+12VDC , Digital power supply
3	4	+12V	Power	+12VDC , Digital power supply
5	6	GND	Power	Digital ground
7	8	Run	Output（3.3VTTL）	Module operation status output: Normal output: 1 second of high level, 1 second of low level.
9	10	Auto	Output（3.3VTTL）	High-level automatic mode, low-level manual mode module
11	12	Pri	Output（3.3VTTL）	High-level main path, low-level bypass
13	14	R1	Output（3.3VTTL）	High-level optical power is above the switching threshold value, while low-level optical power is below the switching threshold value.
15	16	R2	Output（3.3VTTL）	High-level optical power is above the switching threshold value, while low-level optical power is below the switching threshold value.
17	18	NA		Not applicable
19	20	NA		Not applicable
21	22	NA		Not applicable
23	24	TXD	Output（RS232）	Serial port data transmission
25	26	RXD	Input（RS232）	Serial port receiving data
27	28	GND	Power	Digital ground
29	30	NA		Not applicable
31	32	NA		Not applicable
33	34	NA		Not applicable
35	36	NA		Not applicable
37	38	NA		Not applicable
39	40	NA		Not applicable

Serial Port Control Function List

Query the software version number
Restore to factory default settings
Query the current optical power and wavelength of each port
Query switching power, working mode and primary/secondary channels
Query delay time
Setting of R1 and R2 wavelengths
TX wavelength setting
Manual/Automatic Mode Settings
Primary/Secondary channels switching settings
Threshold setting
Reset
Set the delay time for the execution of the switching action
Set the delay time for automatically switching back to the primary network after the network response is established.
The waiting time for automatically switching to the automatic mode when the device is in an idle state