In the optical communication process, it is the access network with light as the transmission medium, replacing copper wire, used to access each home, optical access network (is our home wifi). Optical access network generally has three parts: optical line terminal OLT, optical network unit ONU, optical distribution network ODN, where OLT and ONU optical access network core components. But the classification of OLT has been somewhat ambiguous, for all the collation, for reference only.

	TX			RX
	datarate	wavelength	LD	datarate	wavelength	PD
EPON	1.25G	1490nm	DFB	1.25G	1310nm	APD
10G EPON Asym	1.25G	1490nm	DFB	1.25G	1310nm	APD
	10G	1577nm	EML
10GEPON Sym	1.25G	1490nm	DFB	1.25G	1310nm	APD
	10G	1577nm	EML	10G	1270nm	APD
GPON	2.488G	1490nm	DFB	1.244G	1310nm	APD
XGPON	10G	1577nm	EML	2.5G	1270nm	APD
XGSPON	10G	1577nm	EML	10G	1270nm	APD
XGPON Combo	2.488G	1490nm	DFB	2.488G	1270nm	APD
	10G	1577nm	EML	1.244G	1310nm	APD
XGSPON Combo	2.488G	1490nm	DFB	10G	1270nm	APD
	10G	1577nm	EML	2.488G	1270nm	APD
				1.244G	1310nm	APD

GPON FTTH with 10G

1, mixed GPON and 10G GPON

GPON and 10G GPON share one ODN, but due to different wavelengths, a passive wavelength division multiplexer WDM1r is required.

Advantage: sharing one ODN, save the ODN construction cost

Disadvantage: 10G GPON ONU and GPON ONU are complex, difficult to maintainance.

2, Build a 10G GPON

10G GPON and GPON network are separated physically, clear network structure, which is convenient for management and unified business planning.

Huawei OLT XG-PON and XGS-PON board

1, MA5600T series OLT MA5608T, MA5683T, MA5680T only support asymmetric XG-PON

XGBC, 4-port asymmetric 10G GPON OLT Interface Board

XGBD, 8-port asymmetric 10G GPON OLT Interface Board

2, MA5800 series OLT MA5800 X2, X7, X15 and X17 can supports XG-PON and XGS-PON, also GPON & XGPON combo, here are the boards list.

Board	GPON	XGPON	XGSPON	port and SFP	combo
TWED		XGPON	XGSPON	8, SFP+
XGHD		XGPON		8, SFP+
XGLD		XGPON		8, SFP+
XGSF		XGPON		16, SFP+
XGSF		XGPON		16, SFP+
XSHF		XGPON	XGSPON	16, SFP+
XSHD		XGPON	XGSPON	8, SFP+
CGID	CSHD	XGPON		8, XFP	combo
CGUD	CSHD	XGPON		8, XFP	combo
CGHD	CSHD	XGPON		8, SFP+	combo
CGHF	CSHD	XGPON		16, SFP+	combo
CGUF	CSHD	XGPON		16, SFP+	combo
CSHF	CSHD		XGSPON	16, SFP+	combo
CSHD	CSHD		XGSPON	8, SFP+	combo

Different transmission rates are used with GPON, XGPON, and XGSPON, and they can share one ODN or use separate ones. If you still have questions or would like more details about Huawei 10G GPON or our BT-PON OLT products, you can contact us directly.