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Feature
- Point to point Ethernet and TDM MUX data extender over multiple G.SHDSL.bis copper lines
- Compliant with ITU-T G.991.2 standard, TC-PAM 16/32/64/128 line coding and IEEE 802.3ah EFM 2Base-TL bonding.
- 2 pairs G.SHDSL.bis with 5.7Mbps per pair
- Support extension rate up to 15.2Mbps over a single pair of copper
- Support various interfaces include Fast Ethernet, E1, RS-232 EIA-530, X.21 and V.35
- DIP switch can be used to quickly configure 8 sets of default profile
- Automatic line rate selection with Line Probe enabled
- Flexible installation by console, Telnet, WEB GUI, SNMP or DIP-Switch
- Front panel OAM loopback button test function, easy to perform loop diagnostics
- Remote software upgrade for field-deployed units via TFTP or HTTP/HTTPS
- Support security-link feature and DSL line protection for data transmission
- Built-in lightning protection circuit
- Ethernet switching and bridging with VLAN prioritization and QoS
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Specifications
Models
- Comet 1644: 4-wire/ FE/ RS-232/ V.35/ E1
- Comet 1654: 4-wire/ FE/ RS-232/ V.35
Line Interface – G.SHDSL.bis
- Type: 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),
- Connector: 1 x RJ-45
- Line coding: TC-PAM 16/32/64/128
- Impedance: 135 ohms
DTE Interface – Ethernet
- Ethernet type: 10/100BaseT
- Connector: 2 x RJ-45
- Supports 802.3x flow control
- Auto-MDI/MDIX detection
- Auto-negotiation for speed and duplex
- Support Layer 2 functions
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 2000 bytes
- Supports 802.3x flow control
- Provides 802.1q VLAN tagging
- Supports 802.1p QoS facility
DTE Interface – E1
- Data Rate: 2.048Mbps
- Connector: RJ-45 for balanced E1 120 ohms
- (Optional external convert cable for unbalanced 75 ohms)
- Line coding: HDB3
- Framing: Framed /Framed+CRC /Unframed
- Compliance: ITU-T G.703 and G.704
- Jitter Performance: compliant with ITU-T G.823
- Support BERT test mode
DTE Interface – Nx64k Data
- Data Rate: n x 64Kbps, up to 4.6Mbps
- Connector: 2 x DB-25 Female with optional adapter cable (V35/X21/RS449/RS530/RS530A)
- DTE and DCE clock settings
- Full duplex
- Synchronous Data Rates
DTE Interface – V.24(RS-232)
- 2 X DB-25, Support RS-232, RS-422 and RS-485 (optional adapter cable)
- Data Rates: Asynchronous-300/600/1200/2400/4800/9600/19200/ 38400/48000/56000/57600/115200 bps
- Synchronous-1200/2400/4800/9600/19200/38400/ 57600/115200 bps
- Full duplex / Half duplex support
- Packet data bit : 7/8 bit
- Packet stop bit (1 / 2bit ) can be selected
Management Interface
- Console port: DB9 connector (RS232C)
- Ethernet port: RJ-45 connector (Fast Ethernet)
- Support remote management
- Support Local and remote diagnostic status
- Support Performance monitoring functions
- Supports management by Ethernet / RS232 interface
- Support VLAN function
- Support remote upgrade via WEB
- Front panel reset to factory default button
User Management
- Support three access levels for administrator, operator, user
- User can manually add, modify and delete account and password
Security Management
- Manage permission settings and queries
- Supports security protocol SSHv2 / SNMPv3
- Support login password complexity of 6 characters, uppercase and lowercase letters, digits, special symbols
- Support login account permission level setting, operation log
- Anti-camouflage attack mechanism: lock IP and delay login
- Support SSL1.2, HTTPS secure encrypted connection access
Performance Management
- Historical performance query, report and monitoring
- Performance data storage and query
- Support ES / SES, SHDSL UAS count and query
- SHDSL CRC error counting and querying
- SHDSL SNR signal noise rate status query
- SHDSL ATN signal attenuation status query
Fault Management
- Alarm status display
- Support Current / History alarm log
- Alarm Level setting and query: Critical、Major、Minor、Normal
- Alarm logs (alarm type, time, status and Level)
Alarm Prompt
- Interface data loss alarm
- Ethernet disconnection alarm
- Clock source automatically switching alarms
- DSL ATN line signal attenuation value alarm
- DSL SNR signal noise rate value alarm
- DSL CRC line loop check value alarm
- E1 signal and packet loss alarm
- Remote Power failure alarm (Dying Gasp)
System Management
- Supports Telnet/SSH、Web/HTTPS
- Supports SNMPv3 network management interface
- Control and monitor remote unit via Embedded Operation Channel (EOC)
- Supports SNTP and OAM functions
- Support Internal / External clock source
Certification
- ISO 9001 Quality Management
- China CCC Quality Certification
- CE Approval, IEC61000-4-X, ETSI EN300 386, EN55032, EN55024
- CE LVD Safety, IEC/EN 60950-1
- ITU-T K.45 standard
Power Requirement
- Power Interface: Terminal Block * 1 / Standard 12VDC * 1
- Dual power supply with DC Jack 12VDC input
- AC: 90 to 240 VAC, &50~60Hz
- DC: -24 / -48 / -72VDC option
LED indication
- Comet 1644: DSL 2, ALM, PORT 2, PWR, CPE, TST, E1
- Comet 1654: DSL 2, ALM, PORT 2, PWR, CPE, TST
Operating Environment
- Operation Temperature: 0 °C ~ 75 °C
- Storage temperature: -40 °C ~ 85 °C
- Humidity: up to 95% (non-condensing)
Industrial design
- Full metal housing
- Provide ground terminal, wall hanging hole design
- Power input terminal block
- DIP switch for Quick profile setting
- 42(W) x 160(D) x 160(H) mm
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Application
