A datos técnicos, Mportante – EXFO VDSL2 Manual del usuario

Página 255

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Conjunto de pruebas de servicio triple cobre, VDSL2, ADSL2+ e IP

249

A Datos técnicos

I

MPORTANTE

Las siguientes especificaciones técnicas pueden cambiar sin previo
aviso. La información contenida en esta sección se proporciona
únicamente como referencia. Si desea obtener las especificaciones
técnicas más recientes del producto, visite el sitio web de EXFO en
www.exfo.com
.

VDSL2 VTU-R-MODULE

Chipset

Broadcom

Standard Compliance

VDSL2

ITU-T G.993.2

ADSL1/2/2+

Annex A option (over POTS): ITU-T G.992.5 (ADSL2+), ITU-T G.992.3 (ADSL2), ITU-T G.992.1 (G.DMT)
and ANSI T1.413 Issue 2
Annex L (RE-ADSL) and Annex M are also supported

DSL measurements (upstream and downstream)

Maximum attainable bit rates
Actual achieved bit rates
Latency mode: fast, interleaved
Capacity
Signal-to-noise ratio (SNR) margin
Output power
Attenuation
Carrier load (bits/bin)
Interleave depth
Interleave delay
Trellis coding
Bit swapping

Miscellanous functions/measurements

PhyR™ and INP support
ATM F4 and F5 OAM loopback (ADSL1/2/2+ modes only)
Link errors FEC, CRC, HEC
Loss of sync counter
VDSL2 per band information

IPTV-OVER-DSL/ETHERNET TESTING

Physical-layer support

VDSL2
ADSL1/2/2+
Ethernet 10/100

Supported video compression/standards

MPEG2, MPEG4 part 2 and 10 (H.264/AVC), WM9

Operation

Terminate and Pass Through

IPTV parameters/functionality

Video streaming (channels) detection
IGMP join/leave requests with STB emulation
Bandwidth usage per channel
IGMP packets information
Set-top box (STB) traffic/setup information
Key IP video QoS parameters: packet loss, packet jitter, zap time, PCR jitter, PID statistics
Media delivery index (MDI) showing delay factor, media loss rate and virtual buffer
QoS pass/fail indicators
Graphic results: bandwidth usage and multilayer fault analysis histogram
IP packet and PCR jitter histograms
Multicast/unicast RTP/UDP IP stream support
TCP/RTSP VOD support
Multiple downstream PVC in ATM mode for IPTV

IP connectivity support

DNS, DHCP client/server, NAT, VLAN

VoIP-OVER-DSL/ETHERNET TESTING

Physical-layer support

VDSL2
ADSL1/2/2+
Ethernet 10/100

Recognized signalling protocol

Session initiation protocol (SIP) v2 (RFC 3261)

Operation

Pass Through

Recognized codecs

G.711, G.729, G.726, G.723

VoIP parameters/functionality

Call monitoring/analysis/statistics
Call flow
Key VoIP QoS parameters: packet loss, packet jitter
QoS pass/fail indicators
Graphic results: delay distribution, jitter histogram

IP connectivity support

DNS, DHCP client/server, NAT, VLAN

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