1+1 Optical Line Protection Module (OLP1+1)

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1+1 Optical Line Protection Module (OLP1+1)

1+1 optical line protection system is implemented based on dual emission and selective reception methods, which means that power can be transmitted through two paths at the same time. The optical power of the Tx port will be divided into two equal parts on the primary and secondary paths.At the receiving end,If one of the two links is detected with a power problem, the OLP will optionally receive lines with better signal quality.

Specification

Resources

1. Optical Path Diagram

Principal path: R1 → Rx/Tx → T1

Backup path: R2 → Rx/Tx → T2

2. Technical Parameter

Model	HC- OPM111231-X1113
Fiber type	SM 9/125um
Operating wavelength	1260~1650nm
Test wavelength	1310/1550nm
Insertion loss	Rx≤1.5dB Tx≤4.0dB
Return loss	≥45 dB
Channel Crosstalk	≥50 dB
Polarization dependent loss	≤0.1dB
Wavelength dependent loss	≤0.25dB
Repeatability	≤±0.05dB
Light detection range	-35~+10dBm
Light detection error	±0.5dBm
Switching lifetime	≥ 10 ⁷times
Maximum acceptable optical power	≤500 mW
Switching time	≤15ms
Type of optical switch	Locked
Connector form	LC/PC
Fiber length	0.5m
Monitoring port	UART
Operating voltage/current	DC5V±10%，I≤500mA
Operating temperature	-20 ~ 70 °C
Storage temperature	-40 ~ 85 °C
Board size	90×80×13 ±0.2mm

Note: All parameters are tested at room temperature.

3. Diagram Dimensions (mm)

4. Pin Definition

Pin Number	Pin Definition	Direction and Type of Signal	Functional Description
1	VCC	Power	+5V Power Supply (TTL Power)
2	VCC	Power	+5V Power Supply (TTL Power)
3	TxD	Out	Serial data transmit (LVTTL)
4	RxD	In	Serial data receive (LVTTL)
5	/ISP	In	Firmware update
6	/RST	In	Hardware reset
7	GND	Power	Ground
8	GND	Power	Ground

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Resources

1+1 Optical Line Protection Module (OLP1+1)