.The XMD DSL02 is a 2-wire high speed DSL modem based on the ITU-T G.991 recommendation of G.shdsl standard, capable of symmetric data (128Kbps ~ 2304Kbps) transmission up to 5KM over 2-wire copper line. SHDSL (ITU G.991.2) is a new standard that fulfills the broadband requirements of business users for symmetrical, single pair, and provides the Quality of Service (QoS) required for high bandwidth data transfer. SHDSL extends transmissions farther than any other DSL technology, opening the door for service providers to deliver low cost, multiservice,... View full description
Web address: http://www.tech-pac.com Address: 6/F., Houston Centre, 63 Mody Road, TST, Kowloon,, Hong Kong, Hong Kong
Phone: 852-2-5710327 - Fax: 852-2-5710317
Detailed Product Description
.The XMD DSL02 is a 2-wire high speed DSL modem based on the ITU-T G.991 recommendation of G.shdsl standard, capable of symmetric data (128Kbps ~ 2304Kbps) transmission up to 5KM over 2-wire copper line. SHDSL (ITU G.991.2) is a new standard that fulfills the broadband requirements of business users for symmetrical, single pair, and provides the Quality of Service (QoS) required for high bandwidth data transfer. SHDSL extends transmissions farther than any other DSL technology, opening the door for service providers to deliver low cost, multiservice, broadband access to a wider subscriber base. The wide choice of DTE interfaces (E1, FE1, 10/100M LAN and Nx64K V.35) makes DSL02 an ideal cost-effective solution for broadband access.
FEATURES:
l Compliant with ITU-T G.703, G.704, G.991.2, IEEE802.3. 802.3u
l G.SHDSL (G.991.2) technology gives near fiber transmission quality from 128Kbps to 2304Kbps
l Range at 2Mbps: 5KM (0.5mm gauge) and 3.6KM (0.4mm gauge) over 2-wire copper wire.
l Wide choice of DTE interfaces: E1, FE1, 10/100M LAN, Nx64K V.35 (N<=32)
l Rate-adaptive transmission range. The lower the baud rate the longer the transmission range.
l MDI/MDI-X auto negotiation for LAN connection
l 10/100M speed auto negotiation
l Half/full duplex mode auto negotiation
l MAC address filtration
l Field selectable E1/FE1 and balanced / unbalanced connection
l Support local analog loopback, local digital loopback and remote digital loopback tests and BERT test
l Status LEDs and comprehensive diagnostic tools
l 220VAC or -48VDC power supply
SPECIFICATIONS
G.SHDSL Interface
Standard ITU-T G.991.2
Line Type One unconditioned, unloaded twisted pairs
Line Code TC-16PAM
Impedance 135ohm
Baud Rate Nx64K+8Kbps
Transmit Signal Power +13.5 dBm ?0.5 dBm
Range(@24AWG line) 2.048Mbit/s 4.5KM
1.920Mbit/s 4.8KM
1.024Mbit/s 6KM
128kbit/s 10KM
DTE interfaces
E1/FE1
Standard ITU-T G.703 G.704
Line Type Unloaded 4-wire twisted pair 19 to 26 AWG or
BNC 75ohm coaxial cable
Line Code HDB3 (2048 kb it/s baud rate)
Framing Unframed/framed
Baud Rate 2048Kbps?50ppm
Transmit Level According to G.703
Impedance 75ohm unbalanced or 120ohm balanced field selectable
Receive voltage 0~-43 dB
Transmit high voltage 2.37V ?10%, 75ohm
Transmit low voltage 0?0.1V
Connector RJ-45: 120ohm balanced
BNC coax: 75ohm unbalanced
V.35
Standard ITU-T V.35/V.11 DCE
Baud Rate N?64Kbps (N = 2 ~ 36)
Connector DB-25F (DB25/V.35 adapter cable required)
Ethernet
Standard IEEE802.3
Baud Rate 10/100M auto negotiation
Mode Half / Full duplex
Type and Connector DB-25F, with DB25-RJ45 adapter supplied
Supervisory Port
Standard V.28 RS232
Baud Rate 9.6Kbps, async
8-bit data, 1 stop bit, no parity check, no flow control
Connector RJ45
Timing
Transmit & Receive Internal oscillator
External from the DTE
Receive clock derived from the receive signal, looped
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