TAINET’s SNTU 764 series

TAINET’s SNTU 764 series is a DSL line card that enables the Ethernet data to be transmitted with the speed of 5.7/11.4/22.8Mbps over 2/4/8 wires. It supports up to 15 Mbps per pair of G.SHDSL.bis symmetrical data transmission under extension mode.

SNTU series is compatible with the TAINET iEAC-16 chassis. This combination is designed to work as a central office especially for long-distance Ethernet Access Service. It covers the ADSL/VDSL disadvantages of distance limitation by offering multi-pair bonding services. To reduce the burden of operation/management the operator can control and monitor the remote unit via Embedded Operation Channel (EOC) by following ITU-T G.991.2.Moreover, the administrators can also easily configure all Comet series through Telnet (SSH), Web HTTP/HTTPS) or SNMP agent.


  • Interoperable with Comet 160x series
  • Point to point Ethernet extension over multiple G.SHDSL.bis copper lines
  • IEEE 802.3ah EFM 2Base-TL bonding technology
  • Compliant with ITU-T G.991.2 standard, TC-PAM 16/32/64/128 line coding
  • 1, 2 or 4 pairs G.SHDSL.bis with 5.7Mbps per pairs
  • Support extension rate up to 15Mbps over a single pair of copper
  • CO and CPE mode selectable
  • Automatic line rate selection with Line Probe enabled
  • Front panel status LED indicators for easy monitoring
  • Easy installation with console, Telnet, WEB GUI and SNMP
  • Front-panel test button for easy loop diagnostic
  • Provides extensive diagnostics, including loopback, G.SHDSL.bis performance monitoring
  • Easy software upgrade for field-deployed units via TFTP/HTTP
  • DSL line protection for data transmission
  • Ethernet switching and bridging with VLAN prioritization and QoS


  • SNTU 764S/2W, standalone type G.shdsl.bis NTU, 2-wire, 1 Ethernet port
  • SNTU 764S/4W, standalone type G.shdsl.bis NTU, 4-wire, 1 Ethernet port
  • SNTU 764S/8W, standalone type G.shdsl.bis NTU, 8-wire, 1 Ethernet port
  • All compatible with stand-alone Comet 160x series
Line Interface – G.SHDSL.bis
  • Type: 2, 4 or 8-wire
  • Standard: ITU-T G.991.2, ETSI 101 524
  • Bonding protocol: IEEE 802.3ah EFM 2Base-TL
  • Line rate: n x 64Kbps, n=3~89 (2w), 6~178 (4w), 12~356 (8w)
  • Connector: 1xRJ-45
  • Line coding: TC-PAM 16/32/64/128
  • Impedance: 135 W
  • ITU K.21 compliant
DTE Interface – Ethernet
  • Ethernet type: 10/100 BaseT
  • Connector: RJ-45
  • Support 802.3x flow control
  • Auto-MDI/MDIX detection
  • Auto-negotiation for speed and duplex
  • Full duplex / Half duplex support
Timing Source Function
  • Synchronous and Plesiochronous dual clock mode
  • Internal clock
  • Received clock from the DSL line
Ethernet L2 function
  • Support 802.1d transparent bridge function
  • Supporting Bridge filter function based on source MAC addresses
  • Scalable per port bandwidth control (Step = 64K, up to 100M)
  • 2K MAC learning address
  • Ethernet packet length up to 1522/*1664 bytes
  • Support 802.3x flow control
  • Provide 802.1q VLAN tagging
  • Support 802.1p QoS facility
  • Configuration via craft port VT-100, Telnet, WEB GUI and SNMP*
  • Multiple Web browsers supported: IE, Firefox, Chrome
  • Support remote management
  • Local and Remote loopback for diagnostic
  • Support Performance Monitoring function
  • Front-panel test button for easily loop healthy testing
  • Front panel reset to default button
LED Indicators
  • SNTU 764C:
  • 84(W) x 171(D) x 24(H) mm
Operating Environment
  • Operation Temperature: 0 o C ~ 50 o C
  • Storage Temperature: -40 o C ~ 70 o C
  • Humidity: 90%, non-condensing


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