Industrial Grade G.SHDSL.bis EFM Modem

TAINET’s Comet 160xR series is industrial grade DSL modem which enables the Ethernet data to be transmitted with the speed of 5.7/11.4Mbps over 2/4 wires. It supports up to 15 Mbps per pair of GSHDSL.bis symmetrical data transmission under extension mode.

The design was originally for railway application, therefore it is certified with EN50121-4 ETS EMC. 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.



  • Symmetric H.264 or MPEG4 HD quality video streaming over 3Km
  • Point to point Ethernet extension over multiple copper lines 1 or 2 pairs G.SHDSL.bis with 15Mbps per pairs
  • Supports extension rate up to 30Mbps over 2 pairs of copper
  • Easy installation with DIP switch, Telnet, WEB GUI and SNMP
  • Automatic line rate selection with Line Probe enabled
  • Front panel status LED indicators for easy monitoring
  • Front panel test button with BERT for easy loop diagnostic
  • Easy software upgrade for field-deployed units via TFTP
  • DSL line protection for data transmission
  • Ethernet switching and bridging with VLAN prioritization and QoS
  • Supports security-link
  • CO and CPE mode selectable
  • Optional Ethernet port surge protection
  • Compliant with IEEE 802.3ah EFM 2Base-TL bonding technology
  • Compliant with ITU-T G.991.2 standard, TC-PAM 16/32/64/128 line coding



  • Comet 1602R, 2-wire, 4 Ethernet ports
  • Comet 1604R, 4-wire, 4 Ethernet ports
Line Interface – G.SHDSL.bis
  • Type: 2 or 4-wire
  • Standard: ITU-T G.991.2, ETSI 101 524
  • Bonding protocol: IEEE 802.3ah EFM 2Base-TL
  • Line rate: n x 64Kbps, n=3~239 (2w), 6~478 (4w)
  • Rate1: Symmetric 10Mbps over 3Km@24AWG (0.5mm)
  • Rate2: Symmetric 384Kbps over 9Km@24AWG (0.5mm)
  • Connector: 1xRJ-45
  • Line coding: TC-PAM 16/32/64/128
  • Impedance: 135 ohm
DTE Interface – Ethernet
  • Ethernet type: 10/100 BaseT
  • Connector: RJ-45
  • Supports 802.3x flow control
  • Auto-MDI/MDIX detection
  • Auto-negotiation for speed and duplex
  • Full duplex / Half duplex support
Ethernet L2 function
  • Supports 802.1d transparent bridge function
  • Supports 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 1664 bytes
  • Supports 802.3x flow control
  • Provides 802.1q VLAN tagging
  • Supports 802.1p QoS facility
  • Configuration via DIP switch, Telnet, WEB GUI and SNMP
  • Multiple Web browsers supported: IE, Firefox, Chrome
  • Supports remote management
  • Local and Remote loopback for diagnostic
  • Supports Performance Monitoring function
  • Front panel test button for easy loop healthy testing
  • Front panel reset to default button
LED Indicators
  • PWR, TST, ALM, CPE, DSL1~2, LAN1~4
  • Dual color LED for easy status monitoring
Power Requirement
  • 9~36VDC or 18~60VDC
  • Power consumption: 6W
  • ISO 9001 Quality Management
  • China CCC Quality Certification
  • CE Approval, EN 55022, 55024, 61000-3
  • CE LVD Safety, IEC-60950-1, EN 60950-1
  • FCC Part 15, CISPR 22, ANSI C63.4
  • Railway EMC 50121-4
  • ITU-T K.21 Compliant
  • 210(W) x 146(D) x 37(H) mm
Operating Environment
  • Operation Temperature: 0 °C ~ 75 °C
  • Storage Temperature: -40 °C ~ 85 °C
  • Humidity: 90%, non-condensing