GPON OLT Stick Transceiver

XGS-PON ONU Stick Transceiver

 

The XGS-PON ONU stick transceiver is an Optical Network Terminal (ONT) with Small Form-factor Pluggable (SFP+) packaging. The XGS-PON ONU stick integrates a bi-directional (max 10Gbit/s) optical transceiver function and 2nd layer function. By being plugged into the customer premise equipment (CPE) with standard SFP port directly, the XGS-PON ONU stick provides multi-protocol link to the CPE without requiring separate power Supply.

The transmitter designed for single mode fiber and operates at wavelength of 1270nm. The transmitter uses a DFB laser diode and fully compliant with IEC-60825 and CDRH class 1 eye safety. It contains APC functions, a temperature compensation circuit to ensure compliance with ITU-T G.9807 requirements at operating temperature.

The receiver section uses a hermetic packaged APD-TIA (APD with trans-impedance amplifier) and a limiting amplifier. The APD converts optical power into electrical current and the current is transformed to voltage by the trans-impedance amplifier. The differential signals are produced by the limiting amplifier. The APD-TIA is AC coupled to the limiting amplifier through a low pass filter.

The XGS-PON ONU stick supports a sophisticated ONT management system, including alarms, provisioning, DHCP and IGMP functions for a stand-alone IPTV solution at the ONT. It can be managed from the OLT using G.988 OMCI.

 

 

Product Features

Single Fiber XGS-PON ONU Transceiver

1270nm burst-mode 9.953 Gb/s transmitter with DFB laser

1577nm continuous-mode 9.953Gb/s APD-TIA receiver

SFP+ package with SC UPC receptacle connector

Digital diagnostic monitoring (DDM)with internal calibration

0 to 70°C operating case temperature

+3.3V separated power supply, low power dissipation

Compliant with SFF-8431/SFF-8472/ GR-468

MIL-STD-883 compliant

FCC Part 15 Class B/EN55022 Class B (CISPR 22B)/ VCCI Class B compliant

Class I laser safety standard IEC-60825 compliant

RoHS-6 compliance

 

Software Features

Compliant with ITU-T G.988 OMCI Management

Support 4K MAC entries

Support IGMPv3/MLDv2 and 512 IP multicast address entries

Support advanced data features such as VLAN tag manipulation, classification and filtering

Support"Plug-and-play"via auto-discovery and Configuration

Support Rogue ONU Detecting

Data transferring at wire-speed for all packet size

Support Jumbo frames up to 9840 Bytes

Optical Characteristics

 

Transmitter 10G
Parameter	Symbol	Min	Typical	Max	Unit	Note
Center Wavelength Range	λC	1260	1270	1280	nm
Side Mode Suppression Ratio	SMSR	30			dB
Spectral Width (-20dB)	∆λ			1	nm
Average Launch Optical Power	POUT	+5		+9	dBm	1
Power-OFF Transmitter Optical Power	POFF			-45	dBm
Extinction Ratio	ER	6			dB
Optical Waveform Diagram	Compliant With ITU-T G.9807.1
Receiver 10G
Center Wavelength Range		1570	1577	1580	nm
Overload	PSAT	-8	-	-	dBm
Sensitivity(BOL Full temp)	Sen	-	-	-28.5	dBm	2
Bit Error Ratio		10E-3
Loss of Signal Assert Level	PLOSA	-45	-	-	dBm
Loss of Signal Deassert Level	PLOSD	-	-	-30	dBm
LOS Hysteresis		1	-	5	dBm
Receiver Reflectance		-	-	-20	dB
Isolation (1400~1560nm)		35			dB
Isolation(1600~1675nm)		35			dB
Isolation(1575~1580nm)		34.5			dB

 

 

Electrical Characteristics

Transmitter
Parameter	Symbol	Min	Typical	Max	Unit	Notes
Data Input Differential Swing	VIN	100		1000	mVp-p
Input Differential Impedance	ZIN	90	100	110	Ω
Transmitter Disable Voltage - Low	VL	0	-	0.8	V
Transmitter Disable Voltage - High	VH	2.0	-	VCC	V
Burst Turn On Time	TBURST_ON	-	-	512	ns
Burst Turn Off Time	TBURST_OFF	-	-	512	ns
TX Fault Assert Time	TFAULT_ON	-	-	50	ms
TX Fault Reset Time	TFAULT_RESET	10	-	-	us
Receiver
Data Output Differential Swing		900	1000	1100	mV
Output Differentia Impedance	ROUT	90	100	110	Ω
Loss of Signal (LOS) Assert Time	TLOSA			100	us
Loss of Signal(LOS) Deassert Time	TLOSD			100	us
LOS low voltage	VOL	0		0.4	V
LOS high voltage	VOH	2.4		VCC	V

 

 

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