SGT-701B ADSL Tester
General
The SGT-701B ADSL Tester is a hand-held communication instrument
that supports batteries as power supply, and has a large screen
with Chinese display. This product is particularly applicable for
the field cutover, acceptance and maintenance of ADSL equipment,
and can be widely used by ADSL business operators like China
Telecom, China Railcom, etc, and is the best choice of ADSL
engineers and technicians.
Major Features
" Chinese menus. Large screen. Easy operation;
" Portable design. Built-in large-capacity lithium cell to allow
its working time to be as long as 6 hours and longer.
" Multitask support (It is allowed to conduct a test while browsing
previous records).
" Test setup is allowed. Test results can be stored or deleted.
Memory remains in the event of power failure.
" As many as 7 test settings can be stored, and 100 groups of test
results can be stored.
" Perfect alarm detection and indication.
" The tester can be connected to a computer via a serial port to
enable storing, analysis and printing of the tested data to be
carried out on the computer.
" Software can be updated online.
Major Functions
For ADSL physical layer, following items can be tested:
" Fast channel and interleave channel.
" Line parameters testing: Speed of up and down channels, line
loss, noise margin, transmitting power, and use rate of channel.
" Performance analysis of line error and alarm:
- Automatic detection and display of such alarms as signal loss,
frame loss, power loss and cell loss etc. at proximal end and
remote end.
- Detection of fatal error frame count at proximal end and remote
end;
- Detection of power loss count at proximal end and remote end;
- Detection of signal loss count at proximal end and remote end;
- Detection of interleave channel FEC forward error correcting code
count at proximal end and remote end;
- Detection of fast channel FEC forward error correcting code count
at proximal end and remote end;
- Detection of interleave channel CRC error frame count at proximal
end and remote end;
- Detection of fast channel CRC error frame count at proximal end
and remote end;
- Detection of interleave channel HEC error frame count at proximal
end and remote end;
- Detection of fast channel HEC error frame count at proximal end
and remote end;
- Detection of interleave channel NCD error frame count at proximal
end and remote end;
- Detection of fast channel NCD error frame count at proximal end
and remote end;
- Detection of interleave channel OCD error frame count at proximal
end;
- Detection of fast channel OCD error frame count at proximal end.
" DMT component channel carrier wave pattern
Display the modulated bit number on each DMT component channel in
form of diagram and figure.
" Display user's connection state and testing progress at real
time, and present information on local equipment manufacturer and
version.
For ADSL network layer, following items can be tested:
" ISP PING test
Verify the connection of user to ISP provider.
" Simulated PC logon
The instrument can be used to simulate user terminal PC logging on
ISP provider to verify if ADSL user can get on the Internet. .
" LAN PING test
Verify the PC in connection failure within LAN.
" WAN PING test
Directly PING the website IP to local WAN to verify the
connectivity of WAN link.
" The instrument can be used instead of ADSL MODEM to test Internet
wire speed and flow available for the user.
" The instrument can carry out simulated ISP logon instead of ADSL
modem to check the operating performance of users' terminal
equipment.
" PPPOE dialing can know the users' dynamically distributed IP
websites.
For ADSL line, following items can be tested:
" Digital multimeter (DMM) test
DMM can be used to measure AC/DC voltage, loop resistance,
dielectric resistance, capacitance, etc.
" Subscriber telephone connectivity test
The separator in the instrument can be connected to an external
telephone to verify the connectivity of subscriber telephone.
" Estimation of the distance of subscriber telephone wire.
Technical Index
" Connectors: RJ11 - WAN interface and telephone interface; RJ45 -
LAN interface
" Applicable standards: ITU G.992.1(G.DMT), ITU G.992.2(G.lite),
ITU G.992 Annex A, Annex B, Annex C (FBMå’ŒDBM), ANSI T1.413 Issue
2
" Upper layer protocol support: PPP over ATM (PPPoA), PPP over
Ethernet (PPPoE), Ethernet over ATM (RFC-1483B) , RFC-1483B, IP
over ATM (IPoA)
" Upper layer communication support: ATM, UBR, VBR, CBR.
" Line performance index:
Down speed：8.192Mb/s,
Up speed: 1.024Mb/s,
Maximum transmission distance：5.5Km
" Digital multimeter
DC voltage range: -110V~+110V，Accuracy: ±5%
AC voltage range: 0~110V，Accuracy: ±5%
Resistance range: 0~10MΩ，Accuracy: ±5%
Capacitance range: 0~220?F，Accuracy: ±5%
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