EXFO VDSL2 - Инструкция (Страница 153)

Модуль тестирования VDSL2, ADSL2+ и IP Triple-Play 147
A Технические характеристики
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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