Optical Module

25Gbps 10km Duplex LC SFP28 Transceiver

Kev piav qhia

SFP28 transceivers yog tsim los siv rau hauv 25-Gigabit Ethernet txuas mus txog 10km dhau Ib Hom Fiber.

Cov transceivers tau tshaj INF-8431 thiab SFF-8472. Yog xav paub ntxiv, thov hu rau INF-8431 thiab SFF-8472.

Tiv tauj peb

cov khoom paub meej

piav 2

Specification parameter

Lub npe	25G tib hom
Qauv nab npawb	ZHLP-1325G-10-R	Hom	Zhilian Hengtong
Hom pob	SFP28	Tus nqi kis tau tus mob	25g ua
Wave ntev	1310nm ua	Kev sib kis nrug	10km ua
Chaw nres nkoj	LC	Fiber hom	9/125 µm SMF
Laser hom	DFB	Hom txais	PIN
Hloov kho qhov muag fais fab	-5 ~ + 2dBm	Tau txais rhiab heev	- 11.4 dr hab
Hwj chim		Txais overload	2dBm ib
Lub zog dissipation		Extinction ratio	≥ 3 IB
CDR (Clock Data Recovery)	kev txhawb nqa	FEC muaj nuj nqi
Kev lag luam kub	0 ~ 70 ℃	Daim ntawv cog lus	INF-8431/SFF- 8472 / IEEE 802.3 hli

Module Block Diagram

Nta

* Txhawb 24.3Gbps rau 28.1Gbps me ntsis tus nqi

* 1310nm DFB Laser thiab PIN yees duab ntes

* Mus txog 10km ntawm 9/125µm SMF

* Duplex LC receptacle optical interface ua raws

* Kub pluggable

* All-hlau vaj tse rau kev ua tau zoo EMI zoo

* RoHS6 ua raws (dawb txhuas)

* Kev ua haujlwm kub:

Kev lag luam: -5ºC txog +70°C

Daim ntawv thov

* 25G Ethernet

* 25G Fiber Channel

Cov qauv

* Ua raws li INF-8431

* Ua raws li SFF-8472

* Tau tshaj IEEE 802.3cc

Pom zoo ua haujlwm ib puag ncig

Parameter		Cim	Min.	Hom	Max.	Chav tsev
Fais fab mov Voltage		IN_CC	3.13	3.3	3.46 ib	IN
Fais fab mov tam sim no		Kuv_CC			400	mA
Kev khiav hauj lwm Case Temperature	Kev lag luam	T_C	-5		+70	°C
	Txuas ntxiv		-20		+80
	Kev lag luam		-40		+85
Cov ntaub ntawv tus nqi				25.78 Nws		Gbps

Cov yam ntxwv hluav taws xob

Parameter	Cim	Min.	Hom	Max.	Chav tsev	Nco tseg
Ntu Transmitter
Input Differential Impedance	R_hauv	90	100	110	Oh
Differential Data Input viav vias	IN_i_{n PP}	200		900	mV	1
Transmit Disable Voltage	IN_D	IN_{cc ua}– 1.3		IN_{cc ua}	IN
Transmit Enable Voltage	IN_IN	IN_yog		IN_yog+ 0.8	IN
Tshooj txais
Differential Data Output Swing	IN_tawm_PP	400		900	mV
LOS Fault	IN_{los txhaum}	IN_{cc ua}-0.5 Nws		IN_{cc_}_{tus tswv tsev}	IN	2
LOS Normal	IN_{cov nos}_m	IN_yog		IN_yog+0.5	IN	2

Nco tseg:

1. Txuas ncaj qha rau TX cov ntaub ntawv input pins. AC coupling los ntawm pins rau laser tsav IC.

2. LOS yog qhib cov khoom tso tawm. Yuav tsum rub nrog 4.7kΩ - 10kΩ ntawm lub rooj tsavxwm. Kev ua haujlwm li qub yog logic 0; poob lub teeb liab yog logic 1.

Optical Parameters

Parameter	Cim	Min.	Hom	Max.	Chav tsev	Nco tseg
Ntu Transmitter
Center Wavelength	lwj c	1295 ib	1310	1325 ib	nm
Spectral Dav (-20dB)	Dl			1	nm
Sab Hom Txhaum Cai	SMSR	30			dB
Nruab Nrab Optical Power (avg.)	P_tawm	-5		+ 2.0	dBm ib	1
Laser Off Lub Zog	P_tawm	-	-	-30	dBm ib
Extinction Ratio	YOG	3	-	-	dB	2
Kwv tij siv suab nrov	TSUAS	-	-	-130	dB/Hz
Transmitter thiab Dispersion Kev nplua	TDP		-	2.7	dB
Optical Return Poob Tolerance		-	-	26	dB
Tso zis Optical Qhov muag	Ua raws li IEEE802.3cc qhov ncauj qhov muag thaum lim					2
Tshooj txais
Lub receiver Center Wavelength	lwj c	1260	1310	1355 ib	nm
Receiver nyob rau hauv nruab nrab hwj chim		- 11.4		2	dBm ib
Txais rhiab heev (OMA)	Nws			-12	dBm ib	3
Los Assert	LUB_A	-26	-	-	dBm ib
Cov Khoom Qab Zib	LUB_D	-	-	-17	dBm ib
Los Hysteresis	LUB_H	0.5	-	5	dB
Tshaj dhau	P_hauv-max	-	-	2	dBm ib	3
Txais Reflectance		-	-	-26	dB
Lub hwj chim txais (kev puas tsuaj)		-	-	3	dBm ib

Nco tseg:

1. Lub hwj chim kho qhov muag tau tso rau hauv 9/125µm SMF.

2. Ntsuas nrog PRBS 2³¹-1 xeem qauv @25.78Gbps.

3. Ntsuas nrog PRBS 2³¹-1 xeem qauv @25.78Gbps, ER=4dB, BER -6.

Digital Diagnostic Memory Map (Ua raws li SFF-8472)

Cov transceivers muab serial ID nco cov ntsiab lus thiab kuaj cov ntaub ntawv hais txog kev ua haujlwm tam sim no los ntawm 2-xaim serial interface (SCL, SDA).

Cov ntaub ntawv kuaj mob nrog kev ntsuas sab hauv lossis sab nraud calibration tag nrho yog siv, suav nrog kev saib xyuas hluav taws xob tau txais, kev saib xyuas hluav taws xob xa mus, kev saib xyuas tam sim no, kev ntsuas hluav taws xob thiab ntsuas kub.

Daim ntawv qhia digital diagnostic nco daim ntawv qhia tshwj xeeb cov ntaub ntawv txhais raws li hauv qab no (Yog xav paub ntxiv, thov mus saib SFF-8472).