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Online Manual

The device

On / off button (1)

Use this button to switch the device on and off or reset it in case of software failures.

USB port (2)

Connect to a USB port or a USB power supply to charge the built-in battery. The device status LED shows the charge state. Also used for firmware upgrades with an upgrading software utility. While the USB port is connected, no measurements can be made.

Power status LED (3)

This LED is on, when the device is powered on, and shows the battery state. Colors indicating the states:

The charging time from a completely empty battery to 100% is about 2 hours

Ethernet wire pair status LEDs (4)

After a 'quick measurement' each of the LEDs show the state of a wire pair in the cable On the left is Pair 1, on the right is Pair 4.Colors indicating the states:

Ethernet port (5)

Plug in the Ethernet cable that you’d like to test here

Reset the device

There's a reset function in the device: Press the power button for 10 seconds, and then connect the USB plug.

Device Specifications

  • Operating temperature 10 °C ~ +45 °C
  • Humidity max. 75% (RH, non-condensing)
  • Storage temperature -10 °C ~ +50 °C
  • Max operating height above sea level 3000m
  • Dimensions 102 x 70 x 25 mm
  • Weight 0,25 kg
  • Battery Rechargable Li-Ion, 3.7V, 750mAH
  • Connectors RJ45, 3.5 mm jack, USB micro-B
  • Power requirement 5V, 1A
  • Ethernet standards 10BASE-T, 100BASE-TX, 1000BASE-T
  • TDR range min. 1m, max. 110m
  • Getting started

    How to Pair Pockethernet with your device?

    Turn Pockethernet on. Long-press the Connect button in the app to go the Bluetooth menu of your device, and do a scan for devices and perform a pairing. No PIN code is required. Then go back to the application and push the connect button. Pockethernet is ready to use.

    Please note The Pockethernet app needs BLE (bluetooth 4.0) to communicate with your device.


    App user interface

    The app consist of three main sections: Test, Report and Tools.

    Test tab
    The Test tab has a separate row for each measurement type. You can open and close the details of each row by clicking on the blue row header on the left. On the right side of each row is an icon with four states The grey refresh sign means the measurement is not performed. Click this icon to include the test in the next measurement cycle. Once the test is successfully performed, the icon will turn into a checkmark. All checkmarked results will be included in the report. If you want to re-take a measurement, click the icon until it turnes into the blue refresh sign again. The checkmarked results will be kept even during the new measurement. If you do not want to include a test result in the report, simply press the checkmark again so that it turnes into the grey refresh sign. Some measurements depend on each other and can only be performed and re-measured together. For instance, the ping test requires a link test and DHCP or static IP settings. The needed tests will be selected automatically

    Report tab
    Using this function, you can create a report about the measurements performed on the Test tab. All test results which have a checkmark next to them will be included in the report. On the reports pane, you can enter additional information about the measurements, such as the location and port IDs. The created report can be shared via any application that supports sending files.

    Tools tab
    This pane offers utility functions and settings, and has its own built-in help, accessible by long clicking the row headers on the left.

    Select measurement unit

    You can select your preferred measurement unit (meters/foot) and TIA color scheme under the tools tab -> settings.

    Do a quick measurement

    To do a quick measurement without the smartphone application connected, press the On/Off button briefly. Results are shown on the wire pair status LEDs.

    Start testing

    Go to the test overview and select which tests you'd like to run by clicking on the

    The App - Test overview


    The wiremap test determines (by transmitting signals through each wire) if a pin on a connector is connected to the correct pin at the other end.

    To get a valid result, you need the have the Pockethernet terminator adapter with the "Wiremap" side attached to the other end of the cable.

    The table on the left lists the status (OK / Short circuit / Miswire) of each pair in the cable. The graphical wiring diagram shows the status of each individual wire: the connected pin is shown on the right, short circuits between the wires are shown with a red vertical connection, opens are shown in the middle as a break in the line.

    The pair numberings and colors are based on the TIA colour scheme selected in the tools -> settings menu.

    Pockethernet then can tell you if the wiring is correct and if the cable is:

    Pockethernet is only compatible with the wiremap adapter that came with Pockethernet. In case you would like to order extra/new adapters, please write us at info@pockethernet.com


    This test verifies the presence of a Power over Ethernet supply in Mode A or Mode B (pairs 2+3/Endspan or 1+4/Midspan) and reports the voltage measured. Additionally, voltages are also measured on each wire pair separately (e.g. pins 1+2, 3+6,...) to detect the presence of analog phone lines. The PoE results - if present - are shown in the main summary line of the measurement, the individual pairs in a table below.


    The TDR-based, single ended length measurement and fault locating tests the physical properties of a cable, with just one end connected to Pockethernet. See how long the cable is and if there are any short circuits, split pairs or bad terminations. Pockethernet also detects if the cable is connected to a switched off computer or switch.

    The main status line shows the overall result of the measurement if each pair in the cable is terminated the same way (e.g. all pairs are open or connected)

    The details section includes a table where you can check the condition of each wire pair: Open, Short (with itself), Short with another pair, Connected to an Ethernet port or Bad Termination (if none of the former apply). Additionally the distance to the fault is shown. The length cannot be determined if the cable is connected to another Ethernet port, as a properly terminated connection doesn't provide signal reflections that can be measured. Also, switched on Ethernet ports on the other end can provide false results as the other device is actively transmitting signals that interfere with the measurement.

    Graphical TDR

    This features allows you to measure the imperfections of a cable along its whole length or a section of it. A short electrical pulse is sent down the cable, which is reflected from imperfections (short circuits, split pairs, impedance mismatches, open ends) or absorbed by proper termination (another ethernet port). The cable is measured from its beginning until the distance that is set by the slider. For a distance up to 30 meters / 100 feet, a high-resolution plot is conducted. The maximum distance is 300 meters / 1000 feet.

    On the plot graphics, the horizontal axis shows the distance, while the vertical axis shows any reflections of the initial test pulse. The 4 color lines correspond to the 4 wire pairs in the cable according to the TIA settings. Short circuits show up as a negative reflection, open ends as a positive one, while with a proper termination the graph is completely flat.

    Small imperfections in the +/- 10 range can be caused by cable extenders or patch panels, which can be conveniently detected by this feature.


    When activated, Pockethernet waits for up to 65 seconds after link establishment to receive CDP or LLDP packages.

    These diagnostic packages contain information about the connected switch or router, like the physical port ID Pockethernet is connected to, the system name or management IP address. Information fields, called TLVs of the received packet are listed in the details section of this measurement.

    VLAN tag

    By activating this option, you can set up Pockethernet to use 802.1q VLAN tagging for any outgoing packet of DHCP requests or pings.

    This allows you to test the network connectivity on a specific VLAN (ID), while also defining the packets priority (PCP: 0-7) and the Drop eligible indicator (DEI).

    DHCP / static IP

    This section allows you to test the networks DHCP settings and make Pockethernet request its IP configuration via DHCP, or you can set up static IP settings to be used for the ping tests.

    In case of DHCP, the DHCP offer from the server is parsed and all important fields (e.g. server IP and MAC address, lease times, further servers) are listed in the details.


    You can enter up to three IP addresses or domain names to be pinged.

    The two results include the pinged IP address (so that this test can also be used for DNS resolution) and the average ping time of 3 measurements.


    Test the network connection to see if you can get an IP address. Tap on URL to insert the url.


    The traffic sampling feature allows you to see samples (i.e. not all packets are forwarded to the APP) of the network traffic. Pockethernet will wait for 60 seconds and forward some of the the incoming packets to the app, where the destination and source MAC address are displayed along with any VLAN tag and the ethernet protocol/frame size field.

    BER - Bit Error Rate test

    The Bit Error Rate Test measures the overall quality of a cable run by sending and receiving large amount of ethernet frames and measuring how many of them get corrupted along the way.

    For this measurement, you need to connect the 'Loopback' side of the Pockethernet terminator device to the far end of the cable.

    To test different scenarios, you can configure the link speed which is used, the packets length and contents (fixed pattern of 0x5AA5 bytes or a pseudo-random sequence). The ratio of packets with CRC errors will be displayed in percent or ppm (parts per million) and is a directly proportional to the cabling quality.

    The App - tools overview


    The toner function allows identification and tracking of cables via an electronic signal that can be picked up with a tone probe. You can use it to identify individual cables in a bundle, identify individual wire pairs and track their path in culverts and walls. You can select on which wire pair the signal should be transmitted, which tone should be used at what volume. You can use any analouge tone probe to pick up the signal.

    As the signal can radiate into nearby cables, use the minimum volume that is still trackable to more easily distinguish cables.


    You can use this function to identify the ethernet port on switches and routers to which the cable is connected, by making the link LEDs blink. As a secondary function, you can manually test if a link can be established at specific speeds and duplex settings.


    TIA: Set the color scheme and pair numbering according to the TIA-568 A or B standard.

    Units: Distance units in meters or foot.

    Bluetooth auto-off: The app automatically switches off Bluetooth when Pockethernet is disconnected.

    TDR calibration

    This allows you to calibrate the TDR distance measurement and to adjust for the NVP of the currently inspected cable. As the 4 wire pairs in a cable have different twist rates and therefore different length, they can be adjusted separately.

    For the calibration process, you need to connect a cable with all 4 pairs disconnected and of at least 5 meters length. Then press the Measure button, wait for the results and adjust the sliders of each pair, so that the 'Calibrated' values match the actual length of the connected cable.

    Hardware Info

    You'll find the details on your hardware version, firmware and serial number of your Pockethernet in here.

    The App - Report overview

    The report tab is the place to export your test results. You can download all your data to a PDF or share them through other applications on your phone with the press of a button. In the report tab you can add comments and more details of the test environment that will make it easier for you to identify the results afterwards.

    To download your results:

    1. Do your desired testing
    2. Click on the report tab
    3. Add comments / details
    4. View/send PDF at the bottom
    5. Select how/where you'd like to send the report in the sharing menu