ONS3500 SSN2EFT8A 8-channel FE Ethernet Transparent Transmission Board,transparently transmits 8-channel FE services,utilizes the direct panel outlet to access 8-channel Ethernet signals.It supports 100M full-duplex, 10M full-duplex and self-negotiation.The functional versions of the single board are N1and N2.The single board supports the functions and features of transparent transmission of Ethernet services, LCAS and test frames, etc.The single board consists of an Ethernet access module, a mapping module, an interface converter module, a logic control module, a clock module, and a power supply module.There are no dial codes or jumpers on the veneer for veneer setup.The faceplate of the single board has single board indicators, interfaces, and barcodes.The single board is an Ethernet transparent transmission single board, which is mainly used to solve the telecommunication application areas such as Ethernet service access, bandwidth management and Ethernet service aggregation.

Functions and Features	Description
Basic Functions	Transparent transmission of 8 FE services
Interface Type	Support 10Base-T/100Base-TX, meet IEEE 802.3u standard.
Match with outlet panel	Adopts direct panel outlet to access 8-channel Ethernet telecommunication signals.
Interface Characteristics	Operating Mode: 100M full-duplex, 10M full-duplex and self-negotiation	Support 100M full-duplex, 10M full-duplex and self-negotiation.
	Port Flow Control Mode	Self-negotiation	Not supported
		Non-self-negotiation	Supported
	Port Status Query/Configuration	Supported
	Interface Type Query	Support
	Optical Power Threshold Setting	Not supported
	Pluggable Optical Module	Not Supported
Service Type	EPL	Supports PORT-based transparent transport.
Service Specification	Ethernet Data Frame Format	IEEE 802.3	Supports
		Ethernet II	Supported
		IEEE 802.1q TAG	Supported
	Frame Length Range	Supports setting the message handling for ultra-short frames (non-standard frames less than 64 Bytes) and error frames. N1EFT8A: Supports the setting of 1518Byte to 1535Byte message length, the first four ports support Jumbo frames no larger than 6144Byte, and the last four ports support Jumbo frames no larger than 9600Byte. N2EFT8A: Supports 1518Byte～9600Byte message length setting, and supports Jumbo frames no larger than 9600Byte.
	Mapping Method	VC-3, VC-12, VC-12-Xv (X≤63) and VC-3-Xv (X≤3)
	Encapsulation Format	HDLC	Support
		LAPS	Support
		GFP-F	Support
	MPLS Technology	Not Supported
	VLAN Technology	Supports transparent transmission of VLANs.
	Maximum uplink bandwidth	622Mbit/s
	Maximum bound bandwidth	12xVC-3 or 63xVC-12+9xVC-3
	VCTRUNK Specifications	Quantity: 8 Configuration features: After each level of VC channel is used by one VCTRUNK binding, other VCTRUNKs can no longer be used. The same VCTRUNK can only bind one level of channel, it cannot bind both VC-12 channel and VC-3 channel. Each VCTRUNK can bind up to 3 VC-3 or 63 VC-12. For all VCTRUNKs, VC-12s 1 through 63 are not allowed to be configured simultaneously with VC-3s 10 through 12. The 4th VC-4 can be bound to both VC-3 and VC-12 channels, the other VC-4s can only be bound to VC-3 channels. VCTRUNK1 to VCTRUNK8 can only be bound to VC-3 from 1 to 12 or VC-12 from 1 to 63.
Protection Mode	TPS	Not supported
	LCAS	Support, can realize dynamic increase, dynamic decrease and protection function of bandwidth, meet ITU-T G.7042 standard.
	LPT	Supports point-to-point LPT, meeting ITU-T G.7042 standard.
	LAG	Does not support
Synchronization	Synchronous Ethernet	Not Supported
	1588v2	Not Supported
Maintenance Features	ETH OAM	N1EFT8A does not support N2EFT8A supports CC, LB, LT and meets IEEE 802.1ag standard. N2EFT8A supports OAM auto-discovery, link performance monitoring, fault detection, remote loopback, self-loop detection, and meets IEEE 802.3ah standard.
	Test frame	Supports test frames under GFP bearer mode.
	Response Ping Function	Not supported
	Port Mirroring	Not supported
	Loopback Capability	Ethernet port PHY layer	Supports inner loopback
		Ethernet port MAC layer	Supports inner loopback
		VC-4 level	Not supported
		VC-3 level	Supports inner loopback and outer loopback
		VC-12 level	Not supported
	RMON	Supports port-level Ethernet performance monitoring.
	Soft Reset	Supports soft reset, which does not affect services.
	Hard Reset	Support
	Alarm and Performance	Provides rich alarms and performance events for easy device management and maintenance.
QoS	Not supported
Hub/Spoke	Not supported
Flow Control	Supports IEEE 802.3x flow control based on FE ports. Description: Only EPL services support port flow control.

The related technical information in this chapter and the SDH equipment troubleshooting process are collected and organized by Shenzhen Optical Transmission Network Technology Company Limited (www.opticaltrans.com), please retain! Our company specializes in the sale of Huawei SDH optical transmission equipment, SDH transmission equipment.