N4000 is 1U high SHDSL DSLAM. It supports max 24 ports SHDSL subscribers using one copper pair links, and flexibly supports also 2 and 4 bonded copper pair links.

N4000 is typically used in internet broadband services for businesses, camera and surveillance networks or any applications utilizing high speed, symmetrical Ethernet over copper networks. Both SHDSL EFM and ATM modes are supported making it compatible with virtually all SHDSL modems/CPEs. The max subsriber port speed are 15/15 Mbps per copper pair in SHDSL EFM modem and 5.7/5.7 Mbps in SHDSL ATM mode.



  • Symmetrical broadband access for operator managed Ethernet services
  • Operator and ISP provided broadband services for SMEs, branch offices, etc.
  • IP camera and surveillance networks
  • Campus networks for extended Ethernet/LAN applications

Key Features

  • 1U high, rack mountable
  • 24 SHDSL subscriber ports with one copper pair, supporting also 2 and 4 pairs bonded ports
  • SHDSL EFM mode and ATM mode, selectable by port
  • 2x uplink ports, separate Eth management port
  • 230 VAC or 48 VDC internal power supply


  • IEEE 802.3-2004 EFM (Ethernet in the First Mile)
  • EFM mode: max TC-PAM 16/32/64/128, max 15/15 Mbps per copper pair
  • ITU-T G.991.2 ATM mode: TC-PAM 16/32, max 5.7/5.7 Mbps per copper pair
  • IEEE 802.1D, 802.1Q, 802.1p
  • VLAN douple tagging, Q-in-Q


  • 24 SHDSL ports using one copper pair
  • Supporting also 2 and 4 copper pair ports
  • Telco 24 port for subscribers
  • 2x uplink ports, both can be either gigabit copper Eth or fiber with SFP cage


  • Dedicated Eth management port
  • serial console port
  • Telnet, SNMP v1, v2c
  • WebUI

Power, dimensions

  • 90-240 VAC or -42 - -56 VDC power supply, internal
  • Power consumptionm, max 70 W
  • Operational temperature range 0 C...50 C
  • Dimensions 45 mm x 440 mm x 300 mm
  • Weight 4,5 kg

Additional Product Material