Aztech Annex B ADSL USB Modem (DSL 255U)

PRODUCT SPECIFICATIONS

ADSL/ATM Support

Full Rate External ADSL ANNEX B USB Modem

ITU-T G.992.1 (G.dmt ANNEX B)

Using Discrete Multi-Tone (DMT) line encoding scheme

Full Rate transmission at up to 8 Mbps downstream and 1 Mbps upstream

G.lite transmission at up to 1.5 Mbps downstream and 512 kbps upstream

Unspecified Bit Rate (UBR) ATM Layer with Traffic shaping

AAL ATM Attributes - AAL5

VCI to 64K, VPI to 256, software programmable

F4/F5 OAM Send and Receive/Loopback supported

Trellis Coding and Echo Cancellation support

ITU-T K.21 population option

Encapsulation Support

RFC2364 PPP over ATM

RFC1483 Bridged Ethernet over ATM

RFC1483 Routed IP over ATM

RFC2516 PPP over Ethernet

CHIPSET

ADI AD6480 52-pin TQFP/LQFP Analog IC

ADI AD6484 176-pin TQFP/LQFP DSP Digital IC

Digital Timing Recovery (eliminates need for VCXO)

Support DSP IDMA boot (no external FLASH memory or SRAM required)

EEPROM interface to set USB configuration

ADSL MODEM DRIVER SUPPORT

Windows 98 Second Edition

Windows 2000

Windows Millennium

Windows XP

Software upgradeable via driver for future feature enhancement

POWER REQUIREMENTS

3.3V, 5V tolerant I/O

2.5V core power supply

1.8W total power dissipation

Bus Powered - No external power is required

Hot Swappable Plug & Play and USB Specification 1.1 compliant

EXTERNAL CONNECTORS

1 x RJ11 Telephone socket for Telephone line

1 x USB port

DIMENSION

Dimension : 120 (L) x 84 (W) x 24 (H) mm

Weight : 150g

ENVIRONMENTAL

TEMPERATURE

Operating :

10 to 45 Celsius

50 to 113 Fahrenheit

Non-Operating :

-25 to 70 Celsius

-13 to 158 Fahrenheit

HUMIDITY

Operating: 30% to 80% Relative Humidity (Non-Condensing)

Non-Operating : 10% to 95% Relative Humidity (Non-Condensing)

REGULATORY APPROVAL

Europe : CE (EN55022:98/EN55024: 98), EN60950

SYSTEM REQUIREMENTS

CPU : Pentium II 233 MHz or above with USB port.

Memory : 32 MB

System OS : Windows 98SE, Windows 2000, Windows ME and Windows XP

Interface : USB Port