Cableshark manual

The TDR determines if the copper cable is suitable to carry DSL technologies by locating potential faults along the line such as a bridge tap or end of cable. MODE activated will only transmit signals to a Receiving unit. Users can recall saved results from non-volatile memory or from USB memory. See Section 5. To change the Time setting, use the Arrow Keys to move the cursor so that the current Time: Time value is highlighted.

Use the Alphanumeric Keypad to enter the desired value. The format is hhmmss meaning 2 digit hour 24 hour clock followed by the 2 digit minute and then followed by seconds 2 digits. Available options are 0 continuous min : operation up to 60 minutes in 1 minute increments.

Contact your IT department for an IP address to use. If the External Capacitance Detection Detection: parameter is NO the cable length is estimated using the actual readings. To qualify a circuit for an xDSL application, or when a circuit has a problem with the cable impairments, CableSHARK allows the user to perform various tests for the cable qualification or troubleshooting purposes. The TDR test will automatically place the cursor at the initial rising slope leading edge of a major reflection.

Press the function button associated with Main Menu to exit out of the Remote Responder mode. Choose Frequency Response from the pop-up menu.

Once both units are synchronized, the test will be carried out. The whole process is automatic. The Return Loss measurement is useful in determining the affect of impedance mismatches. The results will be displayed on screen in an easy to understand format. Users will be able to a plot of the effects of crosstalk.

An adequate station ground and These faults can be called shorts, grounds or crosses. The REN is impacted most by telephones and modems connected to the circuit. The Service Provider will only be able to supply enough current to the user to support 5. Some measurements will be optional based on the CableSHARK software package installed, therefore may not be applicable to your unit.

Setting of Imbalance can be from 0. If the imbalance is greater than the user A screen similar to Figure 8. Results can be displayed in feet, meters, or nanoseconds. This test is extremely useful in locating bridge taps multiple appearances and the end of the cable. The parameters can be modified to customize a TDR Test. A Square wave is useful for detecting impairments close to a user. A Sine full wave pulse is excellent for locating impairments up to 20, ft away from the user.

Test Distance Assuming a V. Another screen will appear indicating to the user that the TDR test has been started. When a TDR test is complete, the test result is displayed on the screen. Use the cursor and marker to determine reflection location. If the CableSHARK has successfully found any reflections, it will place the cursor onto the first reflection and adjust the Graph Scale automatically if necessary so that the first reflection is within the display screen. Enables continuous TDR pulses to be transmitted and reflections measured.

The large pulse near 0 distance is the sent pulse, the reflected pulse near ft is the reflection coming from the open end of the cable. Wider pulse widths makes it easier to detect small faults on the cable or faults located at a farther distance.

Figure 8. The sections that follow will explain the operation as each of the control keys is pressed and their respective screens appear. The options are ohms, ohms, and AUTO older hardware will still show and ohms. For single-ended tests, the AUTO impedance setting is recommended because it gives better accuracy by measuring the cable and selecting the most appropriate attenuation.

From here, the test results can be saved to internal non-volatile memory. Longitudinal Balance Test The longitudinal balance test ensures that the twisted pair is balanced. The parameters can be modified to customize a Longitudinal Balance test. From here, the test results can be saved to external USB memory. When running a TDR test, a load coil on the line acts like an open circuit on the line.

If a load coil s is found, they will be represented graphically. Load coil detection test complete. At least 2 load coils detected. Using this test allows technicians to identify whether a line is live voice line or not in use no voltage or current. Other connections may result in inaccurate readings. These are necessary to provide the user with the most accurate results.

The Capacitance Constant is used to calculate the length of the cable based on the Capacitance measurement. The following table lists the most common values. See Appendix B for more information on Resistance loop characteristics. One major impairment for which the 4wire crosstalk measurement is well suited for is for detecting and determining the severity of split pairs.

The measured resistance of the fault is displayed. Allowable times are from 1 to 99 seconds. Values less than 25 Mohm means that the circuit may be unstable and therefore potentially unsuitable for xDSL. Results can be displayed in feet or meters. The parameters can be modified to customize a LoopMapper Test. The following describes the LoopMapper test setup options: Velocity of Propagation sets at what velocity the pulse travels along the wire. Please contact your local EXFO representative for further information and to purchase this option.

Please review the setup for each test by going to that tests setup menu before continuing with the Auto-Test. The Spectral Detective measures up to 2. If the E, F, or G filters are enabled, the Disturber Identification is turned off as the analysis of the available bandwidth is limited.

This option can be ordered from EXFO. This causes the CableSHARK at either end of a test including Single End not to reflect back any test signals or unnecessarily attenuate the test signal. The options are ohms and ohms no AUTO option for Return Loss test, older units will show ohms and ohms This means the user must have a good pair to compare against. Connect a good pair to Yellow and Blue. Connect far end strap from wire connected to Red to both ends of good pair.

The following screen will appear. Yellow Yellow Blue Green A screen similar to the screen shot below will appear. The user is presented with the loop characteristics as entered during the setup phase as well as results in distance and resistance for the location of the fault. Use a strap that is made of 18 AWG 1. Strap together the faulty conductor to the good pair.

Do not use smaller gauge of wire for the strap as this will have a higher resistance and will affect the measurement. Since there is no ground connection, a ground resistance measurement is not given.

Anything over 25 ohms means there is a The Ground Resistance measurement sequence is based on the following assumptions: The ground lead of the instrument is connected reliably to the ground of the CO The standard CO voltage is nominally VDC. Telephone companies define a "ringer equivalency number" REN for each device that rings when your telephone number is called.

Test Type It can happen when the web interface is loading, and openSPOT is in a call simultaneously. Calls always have higher priority, so the loading of the web interface can be slow during an ongoing call.

Be sure to always use the latest firmware on your openSPOT. For firmware upgrade files, see this page. Enter the command rbb. See the serial console section below for more information. These two files signal that both the main and the modem CPUs are ready to start the firmware upgrade process. If you are using a Mac and you have issues with the firmware upgrade, you may try copying the firmware. The default login password for the web interface is openspot all letters are lower case.

All the protocols used are designed in a way that initiate the connection, so your router will keep the used port open in both directions. The procedure is the same as starting the bootloader, except that you have to press the reset button for longer time.

When the web interface is loading data from openSPOT, a loader animation is displayed in the top right corner of the page. This is the page where you can log in to the web interface. If you check the Remember me checkbox, openSPOT will not ask for a login until it gets rebooted, or your browser forgets the login cookie. You can see the current status of openSPOT on this page.

All dynamic information are refreshed every ms. To use the Homebrew connector, follow these steps: 1. Select the protocol mode. Select a server from the list, preferably the nearest to your current location. Enter your callsign. Enter the server password. If you use auto connect, set the Auto connect to ID call type. If you want auto connect to a reflector, set it to Private call, if you want to auto connect to a talkgroup, set it to Group call. Click on the Save button, then click on the Switch to selected button to make this the active connector.

If advanced mode is turned on, the following settings become available: — You can manually enter a host name or IP address for the server. The default port for Homebrew is If openSPOT is connected to the backup server, it will stay connected to it until the connection drops, and then it will retry with the primary server.

Setting this interval other than zero is not recommended, see the notes below. In this case, only one TDMA channel will be used for communication.

The default keepalive interval for Homebrew is 5 seconds, and RX timeout is 30 seconds. You can enable rerouting by setting a reroute ID other than zero. If rerouting is active, all calls are rerouted to and from TG9. This makes using talkgroups easier for users used to simpler networks like DMRplus.

Brandmeister will automatically link you as with SSID Using the auto connect feature is not required on BrandMeister. This is useful if you only want to use a talkgroup, but the server always links you to a reflector automatically. Note that the Homebrew protocol does not support auto reflector connecting.

These periodic empty calls will show up on the BrandMeister dashboard. If this bothers you, set auto connect interval to 0, or disable auto connect. To use the DMRplus connector, follow these steps: 1.

Select a DMRplus reflector from the list. The default port for DMRplus is You can change the current reflector without the web interface by starting a short call with your radio to a DMR ID between and You can use this connector to repeat calls received from one timeslot to the other one.

This connector has no settings. To use the DCS connector, follow these steps: 1. Select a server and remote module from the list, preferably the nearest to your current location. The default port for DCS is The default port for CCS is The default RX timeout is 30 seconds.

If you really want to disconnect, you can switch to a config profile which has the Null connector activated. The default port for REF is Note that if you are connecting to a repeater, you have to set the reflector ID to the callsign of the repeater.

To use the FCS connector, follow these steps: 1. The default port for FCS is If you are using a DMR radio, then you can change rooms by starting a private call to the desired room number.

You can switch FCS servers if you use 3 digits. To use the YSFReflector connector, follow these steps: 1. Select a server from the list.