DZS’ MXK intelligent terabit access concentrator reflects a clean-sheet approach to a truly scalable multi-service architecture that is designed to meet the rapidly evolving demands on access networks. The MXK is a full-featured Multi Service Access Platform enabling service providers to combine data, video and voice in one platform over a pure packet access network. MXK gives carriers the flexibility to cost-effectively deliver triple play services over existing facilities. The VDSL2 line card for the MXK is a high density modules that provide very high speed non-blocking asymmetrical bandwidth for the MXK 819/823 and MXK 319 Chassis.

DZS’ MXK Vectoring VDSL2 + POTS combo line card for the MXK has 24 ports providing both VDSL2 and baseband POTS interfaces on a single line card. The VDSL2 interfaces support speeds up to 100Mbps, and support for high bandwidth symmetric and asymmetric services. The VDSL2 line card for the MXK supports 17a profile using the Broadcom chipset. The VDSL2 line card on the MXK also supports ADSL compatibility, allowing service providers to provide both VDSL as well as ADSL service.

The integrated derived POTS lines convert packet voice to PSTN POTS allowing service providers to take advantage of a low-cost packet network and still provide subscribers with traditional POTS service. The card supports packet voice protocols SIP, MGCP, and H.248. For easy migration from TDM voice to packet voice, the MXK can be connected to the MALC Voice Gateway card to provide GR-303 or V5.2 termination with packet voice connection to the POTS card at a remote site.

The minimum software release required is MXK

DZS’ SLMS (Single Line Multi-Service) access operating system provides intelligent functionality across all the company’s hardware products. Driven by more than ten years of experience in commercial operation and collaboration with 700+ service providers worldwide, DZS’ SLMS software delivers functionality critical to today’s access networks in advanced networking, quality of experience, voice, security, and management.

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Key Features
  • Line Card with VDSL2 and Integrated Derived POTS
  • Support for SIP, MGCP, H.248, and SIP PLAR for Voice Gateway applications
  • Operates in the MXK 819/823 and MXK 319 Chassis
  • Standards Based VDSL2 and ADSL2+ Compatible (ATM and PTM modes)
  • 8a, 8b, 8c, 8d, 12a, 12b, 17a profiles supported
  • Supports G.Vector and G.INP
  • Environmentally Hardened
  • Provided by MXK Chassis
  • 24 Port VDSL2 + POTS interfaces connected by standard 50-pin Amphenol on front of card
Standards Support
  • ITU-T G.992.1 G.dmt ADSL (Annex A)
  • ITU-T G.992.2 G.lite ADSL (Annex A)
  • ITU-T G.992.3 ADSL2 (Annex A and M)
  • ITU-T G.992.5 ADSL2+ (Annex A and M)
  • ITU-T G.993.2 VDSL2 (Annex A and B)
  • ITU-T G.993.5 G.vector
  • ITU-T G.996.1 (G.test)
  • ITU-T G.997.1 (G.ploam)
  • ITU-T G.998.4 (G.inp)
  • ITU-T G.999.1 (
  • ITU-T G.998.x (
  • IEEE 802.3ah 10-PASS-TS
  • ANSI T1.413 Issue I and II
  • ETSI TR-328
  • ETSI TS-101-270
Voice Support

24 ports of derived POTS

Packet voice protocols supported:

  • SIP
  • H.248
  • MGCP
Protocol Support
  • DHCP Relay
  • Bridging 802.1D
  • VLAN 802.1Q
  • 802.1p marking and queuing
  • Rate limiting
  • IPv4 / IPv6


  • ZMS management system
  • SNMP v2/v3
  • Terminal for Command Line Interface (CLI)

Management Interfaces

  • Out-band IP over 10 / 100 Base-T Ethernet or V.24 serial for async terminal
Regulatory Compliance
  • Safety: UL 60950-1; CSA 60950-1; EN 60950-1
  • Emissions: EN 55022A*; PART 15A (FCC)
  • Immunity: GR-1089-CORE, Issue 3*; SR-3580, Issue 1*; ATT-TP-76200, Issue 14*; VZ.TPR.9205, Issue 3*
  • Environmental: GR-63-CORE, Issue 3*

*In process

Operating Requirements
  • Ambient operating temperature: -40º C to +65º C
  • Relative operating humidity: up to 85% (non-condensing)
  • GR-487 compliant
  • Designed for outside plant deployment

Ordering Information

24 Port Vectoring VDSL2 plus POTS Line Card