The NE40E-X1/X2 Universal Service Router is used to provide Ethernet services access in metro areas. The NE40E-X1/X2 is the smallest member of the NE40E family.
The NE40E-X1/X2 focuses on DSLAM, MSAN, enterprise and BTS aggregation, and is the most cost-effective small UPE in the industry. The NE40E-X1/X2 supports 20/40G capacity, and a rich set of interface types. At only 220mm deep, the NE40E-X1/X2 is extremely compact and can be installed in the same rack with access equipment. Additional features include carrier-class reliability, powerful L3 functions, advanced QoS features, and industry leading 1588v2 clock synchronization features.

Spec comparison NE40E-X1 vs NE40E-X2:

Attribute	NE40E-X1	NE40E-X2
Backplane Capacity	285 Gbps	450 Gbps
Port Capacity	20 Gbps	40 Gbps
Forwarding Performance	30 Mpps	60 Mpps
Number of Slots	1 for NPU, 2 for MPUs, 4 for FICs	2 for NPU, 2 for MPUs, 8 for FICs
Dimension (W×D×H)	442mm × 220mm × 132mm (3 U)	442mm × 220mm × 222mm (5 U)
Maximum power consumption	480 W	850 W
Weight in full configuration	14 kg	22 kg
Interface type	Channelized STM-1 (to E1) 10GE-WAN/LAN GE/FE E1 (75/ 120ohm)
IPv4	Supports the static routing protocol and IPv4 dynamic routing protocols such as RIP, OSPF, IS-IS, and BGP-4.
IPv6	Supports various technologies for transition from IPv4 to IPv6: manual tunnel configurations, automatic tunnel configurations, IPv6-to-IPv4 (6-to-4) tunneling, Generic Routing Encapsulation (GRE) tunneling, and Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) tunneling. Supports IPv4 over IPv6 tunneling and IPv6 Provider Edge Router (6PE). Supports the IPv6 static routing protocol. Supports IPv6 dynamic routing protocols such as RIP Next Generation (RIPng), OSPFv3, IS-ISv6, and BGP4+. Supports IPv6 neighbor discovery and path Maximum Transmission Unit (PMTU) discovery. Supports Transmission Control Protocol Version 6 (TCP6), ping IPv6, traceroute IPv6, socket IPv6, static IPv6 Domain Name System (DNS), specifying the IPv6 DNS server, Trivial File Transfer Protocol (TFTP) IPv6 client, and IPv6 policy-based routing. Supports Internet Control Message Protocol Version 6 (ICMPv6) Management Information Base (MIB), User Datagram Protocol Version 6 (UDP6) MIB, TCP6 MIB, and IPv6 MIB.
MPLS	Supports LDP over TE, VPLS, H-VPLS, policy-based routing in VPN. Supports MPLS L2VPNs in either Martini or Kompella mode. Supports VLL/VPLS access L3VPNs. Supports QinQ, MPLS/BGP L3VPN, and inter-AS VPN Option A/B/C. Supports Asynchronous Transfer Mode (ATM) E1, Inverse Multiplexing over ATM (IMA), and Time-Division Multiplexing (TDM) PWE3. Supports MPLS-TP.
Layer 2 feature	Supports IEEE802.1q, IEEE802.1p, IEEE 802.3ad, and IEEE 802.1ab. Supports the Spanning Tree Protocol (STP), Rapid Spanning Tree Protocol (RSTP), Multiple Spanning Tree Protocol (MSTP), RRPP, DHCP+, VLAN switching, and user binding.
Reliability	Supports BGP GR, IS-IS GR, and OSPF GR. Supports LDP GR, Resource-Reservation Protocol (RSVP) GR, and Non-Stop Forwarding (NSF). Supports VLL/VPLS/L3VPN GR/NSF. Supports multicast NSF. Supports BGP/IS-IS/OSPF/LDP/RSVP-TE/PIM/ISSU Non-Stop Routing (NSR). Supports In-Service Software Upgrade (ISSU). Supports fast convergence of Interior Gateway Protocols (IGPs), BGP, and multicast routing. Supports IP/LDP/VPN/TE/VLL FRR. Supports IP Auto FRR. Supports BFD for the static routing protocol and protocols such as IS-IS, RSVP, LDP, TE, Label Switched Path (LSP), PW, OSPF, BGP, VRRP, PIM, and RRPP. Supports RRPP. Supports MPLS OAM and Ethernet OAM, Y.1731. Supports backup of service routers, PW redundancy, and PWE3 end-to-end protection. Supports E-Trunk, E-APS, E-STP.
QoS	Supports Weighted Random Early Detection (WRED), DS-TE capability with a maximum of eight CTs, five-level H-QoS scheduling, VLL/PWE3 QoS, and MPLS H-QoS. Supports the last mile QoS.
Multicast	Supports IGMPv1, IGMPv2, IGMPv3, IGMP snooping, multicast VPN, and IPv6 multicast. Supports static multicast routes. Supports multicast routing protocols: PIM-DM, PIM-SM, PIM-SSM, Multicast source Discovery Protocol (MSDP), and Multi protocol BGP (MBGP). Supports the deployment of both multicast and TE. Supports multicast CAC.
Security	Supports ACL filtering, URPF, GTSM, and DHCP Snooping. Supports anti-ARP attack and anti-DOS attack. Supports MAC address limitation and bonding between MAC and IP. Supports SSH and SSH v2.
Environmental requirements	Long-term ambient temperature: -5℃ to 50℃ Short-term ambient temperature: –20℃ to +60℃ Long-term relative humidity: 5% to 85%, non-condensing Short-term relative humidity: 5% to 95%, non-condensing Working altitude: lower than 3000 meters