Compact Dslam Ies612-51a 12-port Adsl2+

 Without VATWith VAT
Base Price:€1.118,09€1.352,89
Recupel:+ €0,04+ €0,05
Part Number: 91-004-757001B
Language: UK
Minimum Order Quantity: 1


A Cost-Effective Solution for Triple-Play Services in MxU and Sparsely Populated Markets.


  • Two fast Ethernet uplinks for various network topologies
    • The ZyXEL IES-612-51A/IES-612-51 is a 12-port ADSL2/2+ mini DSLAM. It has 2 Fast Ethernet (100Base-Tx) WAN ports that can be configured as uplinks or cascading ports. In order to support more than 12 subscribers, three network topologies can be constructed for different circumstances: Daisy Chain is the one with the minimum number of uplink connections; Loop structure is the topology where the single point failure issue can be avoided in the uplink connections with RSTP (IEEE 802.1w) protocol; Tree structure is the most robust one where each IES-612-51A/IES-612-51 has its own uplink connections.
  • ADSL2+ port-bonding for higher bandwidth in longer loops
    • The IES-612-51A/IES-612-51 is equipped with ATM-based multi-paired bonding feature. Two physical ports can be bonded together as a group, while all upper-layer traffics of a group can be segmented and transmitted over the member ports. If one of the member ports fails, the conveyed traffic will be moved to the other port. When the failed port recovers, it will seamlessly return to the group and share the transmission of the upper-layer traffics.
  • Field-replaceable power module
    • The IES-612-51A/IES-612-51 can be powered thorough either AC or DC inputs; and the design of power modules allows replacement to be performed manually in the field. As a result, Telco operators can inventory the necessary PWBA first and order the correct power modules later for different requirements.
  • Sophisticated features for Triple-Play services
    • The IES-612-51A/IES-612-51 comes with complete ATM and Ethernet QoS, as well as various IP QoS features (Packet classification/Rate Limitation/Queue Scheduling). The seamless QoS-mapping not only allows consistent and appropriate traffic treatment of packets, but also enables fulfillment of triple-play services.


Software Specifications

  • Delivery of Ethernet in the first mile using legacy LAN technologies
  • Support expandable configuration with device stacking
  • SNMP v1, v2 manageable
  • Web management
  • FTP/TFTP for firmware upload
  • Console port configuration (RS-232)
  • Telnet configuration and monitoring
  • Spanning tree algorithm (802.1D) for loop free connection
  • 802.1Q VLAN aware bridging
    • IGMP snooping supports multicast traffic
    • QoS support with 802.1p
    • DHCP relay agent option 82
    • Port isolation
    • 256 static VLAN entries (full-range VLAN ID 1~4094)
    • 4 K MAC address entries
  • Packet prioritizing per 802.1p (QoS)
    • Static configuration – default priority setting
    • 4 priority queues per PVC (up to 4 PVCs)
  • Multicast
    • IPv4 multicast forwarding (through L2 MAC)
    • Static multicast membership configuration
    • IGMP v1, v2 snooping & IGMP proxy mode support
    • Shared VLAN multicast
    • 256 multicast groups and each group can contain 13 members
    • IGMP filtering profile
    • IGMP count limiting
    • MVLAN
    • DSL port multicast bandwidth control
  • Management support
    • CLI-based management from console/Ethernet port
    • SNMPV1,v2 and telnet through Inband Ethernet interface and NetAtlas Access, PC-based EMS management support
    • Web-based management through Inband Ethernet interface.
    • Secured Host: configure remote host IP addresses for management
    • UNIX syslog
    • F/W upgrade, configuration backup & restore via FTP and Web
    • Text-based configuration file support
    • Port configuration
    • Alarm/Status Surveillance
    • Performance monitoring
    • Security and Memory Backup
    • Self diagnostics
    • Remote reset
    • EMS Management support(*)
  • MIB
    • SNMP MIB II (RFC1213)
    • SNMP v1
    • SNMP v2
    • RFC1493 Bridge MIB
    • RFC1643 Ethernet MIB
    • RFC1757 Four group of RMON
    • RFC2674
    • RFC2662 ADSL line MIB

Hardware Specifications

  • DELT (Dual Ended Loop Test)
  • SELT (Single End Loop Test)
  • Power enhancement or ADSL power saving mode
  • Rate adaptation
  • ADSL Compliance
    • DMT T1.413, issue 2
    • G.DMT (ITU G.992.1)
    • G.LITE (ITU G.992.2)
    • G.HS (ITU G.994.1)
    • Auto-negotiating rate adaptation
  • ADSL2
    • G.992.3 Annex A
    • G.992.3 Annex L (RE-ADSL)
    • Annex M
  • ADSL2+
    • G.992.5 Annex A, Annex M
  • ATM-based multi-paired bonding (G.998.1)

Physical Specification

  • 19" 1U rack mountable
  • Dimension : 270 (W) x 350 (D) x 44.45 (H) mm
  • One Telco 50 connectors for 12 ADSL2+ ports
  • One mini RJ11 console port for local management
  • Two 100-based TX for uplink/cascading
  • Status LEDs- System Status, Ethernet Link Status, Ethernet Active Status, ADSL2+ port status, Alarm

Power supply (AC/DC)

  • IES-612-51A
    • AC Power: 100~240VAC, 50 ~ 60Hz
  • IES-612-51
    • DC Power:  -36 ~ -72 V DC(*)

Power consumption

  • 23.62 Watt (AC power input)

Environmental specification

  • Operating Temperature 0°C ~ 50°C
  • Storage temperature: -20°C ~ 70°C
  • Operating Humidity : 10% ~ 90% (non-condensing)
  • Storage Humidity: 10% ~ 95% (non-condensing)


  • RoHS
  • Safety
    • UL 60950-1
    • CSA 60950-1
    • EN60950-1
    • IEC 60950-1
  • EMC
    • FCC Part 15B Class A
    • EN55022 Class A
    • EN55024 Class A
    • ETSI 300 386
  • Reliability
    • ETSI 300 019
  • Telecom
    • ITU-T K20