KE3550 xDSL Multitester

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0.49840 KE3700 xDSL MultiTest

Multifunctional performance tester at an entry level price!

The KE3550 xDSL MultiTest is the multifunctional and modular test instrument at an affordable price. Even in the basic version, the KE3550 offers ICT specialists and service technicians a comprehensive range of features, making it the perfect companion in copper-bound broadband networks, with numerous expansion options.

  • ADSL – ADSL2+, VDSL2, VDSL2 (Vectoring / Super Vectoring), xDSL-Bonding and with auto service detection
  • Maximum transfer rates for performance measurements in gigabit networks
  • VoIP test incl. SIP trunk and MultiCalling with extensive statistics
  • IPTV test with preview image and statistics as well as IPTV channel scan
  • Wi-Fi connectivity and Wi-Fi testing for triple play tests (data, VoIP, IPTV) and web browser
  • ISDN UK0 / S0 and Analogue Test Phone Function
  • Coppertest (KECT), AC/DC measurements, resistance fault localization (RFL), TDR measurements
  • High frequency measurements for line qualification up to 31 MHz
  • Compatible with KE905 Remote for performing automated cable test sequences

We have bundled various configurations on our KE3550 MultiTest packages pages for a special price:
KE3550 All-IP/Wi-Fi package
KE3550 All-IP package
KE3550 xDSL/LAN Tester package

SKU: 0.49815 Category:

In addition to ADSL1 / 2 / 2+ and VDSL2 including VDSL2 vectoring, the base configuration of the KE3550 also supports the latest VDSL2 standard SuperVectoring (VDSL 35b). At the push of a button, the connection to the respective service is started, which significantly speeds up and simplifies measurement applications. Optionally, the KE3550 can be extended to test

The xDSL modem and router replacement mode in the device help the technician to efficiently limit faults caused by defective customer equipment, for example.

In addition to the xDSL interface, a Gigabit Ethernet interface is available. TCP / IP tests as well as HTTP / FTP performance tests for assessing the performance of the connection up to a data throughput rate of 800 Mbit/s are already possible via both interfaces in the base unit. The terminal mode available via all broadband interfaces in the KE3550 is used to simulate applications (Internet traffic), IP telephony (SIP phone emulation) and IP television (set-top box emulation).

In addition to the classic test functions for ISDN and analogue, extensive tests are available to determine the voice quality of Voice over IP (VoIP). A clear statistic of e.g. packet loss, delay, MOS etc. as well as the test handset function allow a comprehensive quality assessment. In addition to standard SIP, the KE3550 also supports SIP trunk and MultiCalling for up to 10 parallel calls.

The test function of the IPTV services includes, in addition to single and multistream, a channel scan, including display of the switching time as well as a preview image. Extensive parameter statistics allow the technician to reliably assess the transmission quality.

New Wi-Fi test functions are available for service testing in 2.4 and 5 GHz networks. Classic function tests, extensive network information, quality parameters incl. automatic good/bad evaluation and a Wi-Fi monitor are part of the range of functions. It even enables the testing of triple-play services (Data/VoIP/IPTV) in wireless networks.

The KECT cable fault measurement module that can be integrated in the housing turns the KE3550 into a fully-fledged cable fault measuring device. Cable multimeter and TDR measurements for cable analysis and fault location as well as HF measurement functions for quality assessment of the copper twin wire help the technician with the measurement tasks in the cable network. In combination with the KE905 Remote line switch, automatable measurement sequences are possible, which speeds up and simplifies the execution of measurements.

As a simple alternative to KECT, the DMM Digital Multimeter option is available to the user. The focus here is on quickly checking the building‘s internal telecommunications cabling.

The large colour display is ideally protected by safety glass and can be read in sunlight. The at-a-glance display offers a clear presentation of test-relevant line and service parameters and enables intuitive operation without time-consuming menu changes. The Multitasking function makes it possible to run several tests in parallel.

Measurement results can be saved directly as a PDF to a USB stick or evaluated and managed on a PC via the included KE-Manager software. For use in combination with digital order processing systems, the measurement results from the KE3550 can also be displayed and transmitted via QR code. The analysis function allows stored measurements to be recalled and viewed in detail directly via the unit.

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KE3550 xDSL Multitester
Compliance ADSL1/2/2+ ATIS/ANSI T1.413 Issue 2
ITU-T G.992.1 (ADSL incl. Annex A, B, J)
ITU-T G.992.3 (ADSL2 incl. Annex A, B, J, L)
ITU-T G.992.5 (ADSL2+ incl. Annex A, B, J, M)
IEEE 802.3ah (PTM)
ITU-T G.998.1/2 (Bonding)
Compliance VDSL2 ITU-T G.993.2 / 993.5 Annex A, B (Vectoring)
ITU-T G.998.1/2/3 (Bonding with Profile 17a)
Profiles: 8a/b/c/d, 12a/b, 17a, 30a and 35b (Annex Q)
Bandplan: 997, 998, US0
IEEE 802.3ah (PTM)
Compliance ITU-T G.9700 / 9701
DSL parameters Maximum attainable bit rates
Actual achieved bit rates
Actual bonded achieved rates
Latency modes: fast, interleaved
Data modes: ATM, PTM
Capacity (%)
Signal-to-noise ratio (SNR) margin
Output power
Attenuation/bin (Hlog/bin), QLN/bin, SNR/bin
Vendor code, revision
Interleave depth
Interleave delay
Bit Swapping
Modes: PTM, ATM
LATN per band, SATN per band
Test interfaces ADSL 1/2/2+ / VDSL2 / VDSL2-Vectoring / SuperVectoring / with auto detection
Ethernet 10/100/1000
Ethernet 10/100/1000 management
Web browser for service confirmation
Encapsulation RFC 2684 supporting bridged Ethernet (IPoE), IPoA (RFC 1577), PPPoE (RFC 2516), PPPoA/LLC and PPPoA/VC-MUX (RFC 2364)
Operating modes DSL Terminal, Router and Modem mode
Transit mode with modem substitution (DSL/Ethernet)
Ethernet terminal mode
Login format Username and password using PAP / CHAP
Connection options VoIP autoconfiguration at BNG
DHCP 60 autoconfiguration
LAN/WAN state
DNS, Gateway
DHCP Client/Server, DHCP provider class
IPv4 and IPv6
Signal strength
Ping test Ping destination: Gateway, IP-Address or URL
Number of Pings: 1 to 9999
Packet size: 56 to 2048 Bytes (default is 56)
Timeout: 1 to 2000 seconds
Results: Packets sent/received, average round-trip delay (ms)
Traceroute test Traceroute destination: Gateway, IP-Address or URL
Timeout: in seconds, maximum is 120 s
Packetsize: 32 Bytes
Number of hops: 1 to 100 (default is 30)
Results: Indicates IP address of hop and round trip time in milliseconds (ms)
FTP / HTTP throughput test* Address: IP or URL
Direction: Upload and/or Download up to 700 MBit/s
Results: Time, kB transferred, speed in kBit/s
Bookmarks: User definable
(* Run up to 10 tests simultaneously)
Software options VoIP test: SIP protocol support, DSL and Ethernet; Codecs: G722, GSM, L16, A-Law, µ-Law, Speex; Results: MOS, R factor, Latency. Jitter, Packets (loss, sent)
IPTV test: Video standards: MPEG2, MPEG4 part 2 and 10, DSL and Ethernet; Programmable channel list, analyzes up to 10 streams simultaneously, Results: MOS, R factor, Latency. Jitter, Packets (loss, sent)
Interface options xDSL bonding module
KECT copper qualifying up to 31 MHz and Telco Multimeter
TDR fault detection / localization
ISDN BRI Uk0 / S0 / POTS interface (4B3T oder 2B1Q)
Wi-Fi interface 2.4/5 GHz, 802.11b,g,n
Display 3,5“ TFT Display, RGB 240 x 320 sunlight readable
Power supply High performance LiPo battery
Dimensions 230 x 110/90 x 70 mm
Weight 1300 g
Housing Impact-resistant ABS case with protective and high impact plexiglass as display cover
Menu languages German, English, French, Italian, Dutch, Spanish
KE3550 xDSL Multitester
KE3550 Data Sheet 1.58 MB

Product Catalogue

Kurth Electronic catalogue 13.63 MB