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Arcom Digital Quiver XT, User Manual

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Arcom Digital Quiver XT User Manual Download Page 32

 

 

 

32

 

Using the TDR 

Due to differences in signal level when connecting to an amplifier test point versus 

the QTP test probe when connecting to a passive, when entering NTC TDR mode the user 
must first select the connection method of Probe or Amplifier, then check settings to 
confirm VOP and Cable type, then press the Run hot key to start TDR functionality. 

   

Check Spectrum 

The return spectrum can be easily viewed if the user 

wishes to confirm that the spread spectrum ranging 
pulses are not visible.  Press the Spectrum hot key while 
the TDR is active and in continuous run mode to view

. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The user can toggle between the 

Spectrum and TDR modes using the 

corresponding hot keys 

Summary of Contents for Quiver XT

Page 1: ...Quiver XT User Guide Quiver XT and XT UB v 1 3 1 Firmware release XT4 19 and above Q browser release 5 0 0 11 and above 12 04 18 This document describes the operation and feature set of the Quiver XT ...

Page 2: ...Operation Modes 13 CPD Radar Mode 13 Passive CPD Radar 14 CPD Radar Connection Diagrams 15 Amplifier Connection 17 Tap and Splitter Connection 18 End of Line CPD 19 Using CPD Radar in Local View 20 Selecting CPD detection filter bandwidth 21 Selecting noise suppression 21 Using the CPD Marker Option 23 Zoom mode in Passive radar 24 Filtering of analog channels IMPORTANT 25 Active radar mode 25 NTC...

Page 3: ...native Node Calibration 52 Using Calibrator mode 53 Setting Up the Data Carrier Frequency 54 Setting the Signal Output Level 56 Calibrating a Fiber Node 57 Turning Calibrator Output Signal ON and OFF 57 Leakage Detector 60 Max Hold leak level 62 Saving and recalling the leakage trace 63 RTN Simple Sweep Generator 63 Sweep Profiles 64 Manual sweep profile 64 Fixed sweep profile 65 Creating a fixed ...

Page 4: ...rum analyzer QAM demodulator Simple Return Sweep and leakage detector Two version of Quiver XT are available a standard version which works with the Hunter system and an unbundled version for stand alone operation The standard version when used with Hunter provides a method of node calibration which allows for quicker and more efficient node scanning and additionally provides a means for the meter...

Page 5: ...t from the Standby press and hold the power button for 3 seconds If you hold it too long the unit will shut down ENTER Used to confirm changes and to enable some functions Exit press to exit the menu item note some screens require pushing Back soft key instead Cursors arrow keys Used for scrolling the screen and switching between functions Right below the screen window are four function keys that ...

Page 6: ...D Radar mode serves as an output for the calibration signal when in Calibrator mode Battery charger input Connector dedicated to charging the batteries using either the AC input charger which is supplied with the Quiver or a car charger that can be purchased separately USB 2 0 The USB 2 2 port connects to an IBM compatible PC for stored picture transfer and firmware updating through Q Browser Batt...

Page 7: ...n you will see the following screen landing on the Operation modes page Brightness and Audio control Brightness and volume control is accesses by pressing the Brightness Volume hot key accessed from the main menu page Use the up down arrows to adjust volume and left and right arrows to adjust brightness ...

Page 8: ...ss various items Settings General The General setting button contains information on the FSK data carrier and frequency for use with the complete Hunter system not relevant with unbundled versions of Quiver XT as well as background color changes ...

Page 9: ...ular headend or hub at a time Any time you move to another headend or hub you must go back and change the Data Carrier When starting the Quiver for the first time the user might have to select the FSK band first Typically the Quiver will be set in the factory to the required band Note that the frequency band is factory preset with the hardware components and changing the band in the settings will ...

Page 10: ...on standards In order to operate properly in the forward spectrum analyzer and analog leak detector modes this is necessary to set properly the TV standard that is used by the cable plant From the main Settings menu select Measure menu item and press Enter Then select the appropriate standard from the list ...

Page 11: ... multiple operational modes Return band This configures the return bandwidth of the used used across multiple modes of operation FWD scan list This feature is used to select channels to display in the SLM if the user wants to view certain channels instead of all channels ...

Page 12: ...d profiles Up to 64 frequency points can be viewed for each profile Use the left and right arrow key to select a sweep profile Settings Calibration Calibration is used to change various parameters at the factory it is not a setting that a user should ever require access to It is password protected ...

Page 13: ...constellation Leakage detector mode contains an analog detector that can detect any analog carrier on the network Calibrator mode is use to calibrated nodes when used as part of a complete Hunter system The RTN Sweep SSG Simple Sweep Generator is used to insert the sweep signals into the network for balancing The sweep can be viewed by the Quiver itself or connect your smart phone to the Arcom Sim...

Page 14: ...equency can be adjusted from 8 to 90 MHz Wide BW 5 100 MHz This selection detects CPD using in the complete 5 100 MHz Return Band While using CPD radar with a Quiver XT you have the option to operate in either local or headend mode In local mode the distance to the CPD source is displayed as described above In headend view mode the Quiver shows the CPD as the distance seen from the fiber node as m...

Page 15: ...CPD Radar Mode you must establish proper connection to the network devices The diagrams illustrate the proper CPD leg Isolation setups to use for the various devices in the network Node Connection Node Connection Single Output Amp Fiber Node ...

Page 16: ...16 Node Connection Isolation at Fiber Node ...

Page 17: ...17 Amplifier Connection Node Connection Isolation at Amplifier ...

Page 18: ...18 Tap and Splitter Connection Tap and Splitter Connection Isolation at Tap Splitter ...

Page 19: ...ill have to use the Quiver in Headend View Connect the Quiver Forward Port to the tap and keep disconnecting the houses tap ports 1 8 one by one while watching the Quiver screen in headend view If you disconnect a house tap port and at the same moment the CPD signal disappears that house is the CPD source End of Line CPD ...

Page 20: ...s the Stop soft key which will be renamed into Run key Press the Run soft key when you need it to resume scanning The Quiver display defaults to the medium Delay Range of 0 25µs If you want to change the delay range open menu item Delay scale by hitting key 1 and pressing Enter The dialog box will open where the following settings can be selected with and v cursor keys Range can be selected as 0 5...

Page 21: ...dialog box will open From the frequency list select desired value and press Enter to confirm Then adjust the other end of the bandpass filter in the same fashion if necessary It is important to remember that the more narrowly the filter is set the lower the detected CPD peak will be and its peak will be slightly wider Selecting noise suppression For further improvement of noise cancellation it is ...

Page 22: ...full range of time delay for CPD signals may take long up to 180 seconds The expanding horizontal blue bar at the top of the screen is indicating the scan progress If the CPD peak is well visible and identified there is no reason to wait for the entire scan To scan again once the first scan is over press Run soft key ...

Page 23: ... the right or to the left of the scale The actual time delay value of the marker position displays in the upper right corner of the screen Once you have the time delay value of the marker position maximum CPD you will use it to search the system for candidate devices in the Quiver Navigator software or mobile app The distance to the CPD source is displayed right below the delay value Please Note T...

Page 24: ...The return bandwidth of the cross correlator is selected at Settings Measurement Press the Zoom button to access from the Passive radar screen Actual zoom response example is shown below In zoom mode the peak with marker is placed in the center of screen with display x axis showing 2 µs from marker Note CPD peak time delay in zoom mode is more accurate ...

Page 25: ...adar mode The active CPD radar mode is designed to allow for testing the home network or alternatively for certification testing of new construction in plant that is no yet active THIS MODE WILL BE DISTRUPTIVE TO NETWORK TRAFFIC AND SHOULD NEVER BE USED ON LIVE PLANT A WARNING MESSAGE IS INDICATED PRIOR TO THIS MODE BEING ENTERED In active CPD radar mode a radar chirp signal is generated in the 15...

Page 26: ...tted at return path frequencies in the forward It is effective from the connection point to the next amplifier An illustration of how the device operates and is connected to the network is provided in the figure below Here a spread spectrum signal is input through an amplifier return in test port the signal travels through the network to the next amplifier where due to the presence of the diplex f...

Page 27: ...BE RETURN INPUT IN THE FORWARD AND OUTPUT NEEDS TO BE RETURN OUT IN THE RETURN The NTC TDR output display is unique in that it provides a presentation of easily understandable return loss across the measured span This output format is significantly improved over that provided by status quo TDRs which just provide difficult to interpret impedance bumps indicating shorts or opens ...

Page 28: ...ort as shown below The spread spectrum probing signal transmit signal can be set from 10 10dBmV the recommended and default level is 0dBmV This signal level range is considered safe and will not be disruptive to any traffic As will be described with one button the return spectrum analyzer can be access such that the user can easily confirm that the probing signal level are below the return noise f...

Page 29: ...the line passive The Tx and Rx cables can be connected to either of the QTP 20 output ports When connecting with a probe depending upon signal levels it might be necessary to use an external return amplifier to boost signal levels The Arcom Digital Q AMP is designed for this purpose Since we need to amplify the very low level Received Rx signal the Q AMP must be placed on the Rx port and the user ...

Page 30: ...orts are utilized and connected to the proper transmit and receive ports The required configuration is illustrated below where the 5 42MHz transmitted signal is inserted in the forward direction via a return input test port such that it can pass through the diplex filter and the reflected signal is received by a return out test port ...

Page 31: ...nected to the transmit and receive ports of the TDR and with a 20dB pad installed between the splitter input and the length of cable as shown in the diagram below The Holland GHS 2PRO splitter was selected for this applications because of its outstanding 42 dB return path port to port isolation performance Similar replacement splitters should be used to ensure proper TDR measurements ...

Page 32: ...e or Amplifier then check settings to confirm VOP and Cable type then press the Run hot key to start TDR functionality Check Spectrum The return spectrum can be easily viewed if the user wishes to confirm that the spread spectrum ranging pulses are not visible Press the Spectrum hot key while the TDR is active and in continuous run mode to view The user can toggle between the Spectrum and TDR mode...

Page 33: ...mpairment will correspondingly change After selecting the VOP menu item use the keyboard and enter the two digits corresponding to the VOP then press enter the device will add the decimal and percentage symbols Cable For the NTC TDR the type of cable being used in the network needs to be selected from the drop down list using the up and down arrow The type of cable indicator contains information r...

Page 34: ...connection point is an amplifier with 30dB test points instead of the more common 20dB test point where stronger transmit signal levels would be required Another case where the higher signal level might be needed would be in sections of plant with larger than typical numbers of passives older architectures The lower level 5 or 10 dBmV settings would be recommended for end of line type situations o...

Page 35: ...00 MHz Enter RTN mode and connect return input to the indicated port To set up Start frequency highlight the settings menu item Min frequency by using the cursor keys or hit 1 on the numerical keypad and press Enter Then in the appearing dialog box type in required frequency using the numerical keypad and press OK soft key ...

Page 36: ... frequency highlight the settings menu item Max frequency by using the cursor keys or hit 2 on the numerical keypad and press Enter Then in the appearing dialog box type in required frequency using the numerical keypad and press OK soft key Should you make an error typing in the frequency use Clear all soft key to clear the field and type the frequency again ...

Page 37: ...highlight this menu item with the vertical cursor keys then press Enter to open the On Off submenu In the submenu highlight required On or Off state with the vertical cursor keys and confirm selection with Enter button The scale is automatically corrected to actual input gain Always make sure the LNA is Off when watching normal level signals Reference level change The reference level can be change...

Page 38: ...the submenu highlight required value with the vertical cursor keys then press Enter to confirm selection Scale change The signal level scale is set in default to 10dB div It can be changed to 5dB div The screen can show only five menu items at a time So to access this setting it is necessary to scroll down to menu item number seven or push 6 on the digital keypad Then press Enter to open the Scale...

Page 39: ...ers The analyzer has two markers available Additionally the instrument shows the difference in frequency and the level indicated by the two markers That data is available on the upper part of the display as Delta value To activate the marker use the cursor keys or hit key 4 or 5 to highlight required Marker field and press ENTER Then select desired marker mode using the and v cursor keys Four mark...

Page 40: ...he particular marker is deleted from the screen Using Max Hold The Quiver has two Max Hold functions available The basic Max Hold operates as a typical spectrum analyzer feature Additionally the current Max Hold result can be stored on the screen temporarily and with the Hold function another signal source Max Hold can be compared with the previously stored on the same screen offering easy signal ...

Page 41: ...user can compare it on the same screen with the Max Hold of the signal at another leg of the plant To turn it on press the Hold soft key Once activated the first Max Hold line turns green and the next signals Max hold line will be pink This mode is very helpful for finding direction when ingress troubleshooting Exit the Hold mode by pressing the Off soft key To the right is a real example of Max H...

Page 42: ...ctrum trace use the Save soft key Next press the Yes soft key to confirm selection and the screenshot will be saved into the memory The traces are available for downloading using the USB port and the Q Browser software ...

Page 43: ...signal for each selected channel Analog QAM OFDM or noise Then any channel can be selected at List to switch to the very fast FFT spectrum analyzer mode with ResBW 10kHz and Span 8MHz Option after selecting forward is either Full band where the entire frequency spectrum is presented or Scan list which is a subset of this on channels that the user has selected through the Settings Measurements FWD ...

Page 44: ...44 ...

Page 45: ...45 QAM demodulator mode QAM demodulator mode is very simple It is required to capture signal samples for 30 seconds ...

Page 46: ...traces then can be viewed on the Quiver screen or downloaded into the PC with help of Q Browser software Saving a Trace To save a Trace simply press the Save soft key then respond Yes and press ENTER to store into Quiver s memory When the save is complete you will hear an audible signal when sound enabled ...

Page 47: ...47 Recalling a Trace Saved Traces can be recalled and reviewed To recall saved Traces from memory press Trace soft key from the Operation modes screen Accessing saved traces ...

Page 48: ... Please Note While viewing a recalled trace the Marker option is NOT active Clearing Traces Once you have resolved a CPD issue you can clear the saved traces from memory To delete the traces use Q Browser and the mini USB port on the instrument Refer to the Q Browser manual for the feature description Downloading Traces The traces can be downloaded with the Q Browser and the mini USB port on the i...

Page 49: ...e instrument must be in the CPD radar mode first Press the Headend soft key to activate feature that makes the meter display on the screen the actual CPD view from the headend radar The Local soft key will navigate back to the local radar mode CPD Radar Mode Enter ing Headend View ...

Page 50: ...an audible signal and the text Scanning node xxx under the Delay axis graph changes from blue to red Then the vertical bar changes color to blue when cycling through other nodes The CPD s time delay signal is shown above the vertical bar on the graph The value shown is the time distance as calculated from the fiber node the distance between the headend and the node is automatically subtracted Head...

Page 51: ...iew mode and is required in order to optimize scanning time for each node When nodes are calibrated the scanning rate increases This is not so important for low node count hubs but for larger systems it is of benefit Calibrator mode is not functional with the Quiver XT UB Calibrator Connection Diagrams Caution You cannot put power through a device Nodes Node Calibration ...

Page 52: ...s connection multiple calibrator signals are present due to poor return loss of the components and signal reflections To eliminate this problem we recommend using internal test ports when calibrating the fiber node Alternate Node Calibration ...

Page 53: ...mode To activate the Calibrator Mode go to the Operation Modes and use the cursor buttons to to highlight Calibrator or hit 4 on the keypad then press ENTER The following appears on the screen Enter ing the Calibrator Mode ...

Page 54: ...ibrator menu To access it open Calibrator item from the Operation Modes screen Highlight Data carrier menu item and press Enter to open the frequency adjustment dialog box In the open window press the Clear all soft button to remove existing setting Then type the desired frequency digit by digit using the numerical keypad Should you make an error you will have to clear all the digits with the Clea...

Page 55: ...55 Then to change the node ID use Clear all first then type in the node ID using the numerical keypad and confirm selection by pressing Enter ...

Page 56: ...ox will open Change the Output Signal Level In the open window press the Clear all soft button to remove existing setting Then type the desired output level value digit by digit using the numerical keypad Should you make an error you will have to clear all the digits with the Clear all soft button and retype value again Once the data input is correct press OK soft ...

Page 57: ... continuing the node calibration process Please Note You will need to change Node ID and Output Level at each calibration site Turning Calibrator Output Signal ON and OFF Once you have set the parameters required for node calibration Data Carrier Node Number and Output Signal Level you will switch the output signal On so that the Quiver can send its simulated CPD signal to the headend radar To swi...

Page 58: ...ion process Using the Data Carrier the Quiver sends a signal to the headend radar and waits for a response During scanning while waiting for confirmation from the headend you will see the screen below Node Scanning Message However if the Data Carrier frequency was set incorrectly or if the forward signal connection is bad or if the forward signal level is too low less than 5dBmV the following erro...

Page 59: ...ccessful node calibration message In this case no further action is required The data is automatically validated in the Hunter database However if the Headend Radar scans the fiber node but does not receive the node s calibration signal the following error message below appears on the screen Calibration Error Message In this situation first check the connection If the connection is secure increase...

Page 60: ...ctivate the leakage detector attach the antenna to the left hand side input and select menu item five by highlighting it with the vertical cursor keys or push 5 on the numerical keypad Then press Enter and the following screen will appear After checking the connections press Enter again The detector will start working The next step is to select required channel frequency that will be used for dete...

Page 61: ... numerical keypad After Enter ing the frequency press OK soft button to confirm the new values If a mistake in the Input is made use Clear all soft key to clear the wrong value and retype the correct value When changing frequencies remember that the antenna length need to be matching the wave length but doesn t need to be matched precisely when the user needs temporarily to verify signal presence ...

Page 62: ... the leak The user can see on the screen what was the max level of the detected signal and return to the antenna position to judge about the source location Turn on the Max Hold by pressing the Max Hold soft key Once the leaking signal reaches the detection threshold that is reflected on the screen by the dotted red horizontal line and the VBI pulses are identified the sound will sound if enabled ...

Page 63: ... used to generate 64 point Return Path sweep signals from 5 90 MHz in any desired configuration and level A software application running the Arcom CPD Sweep Core is integrated within any PNM platform and then using standard MIBs that are part of the RPHY specification the core requests FFT return data from the CCAP Core for the desired Remote PHY Node Upon request from the user with a Smart Phone ...

Page 64: ...cted by the user as required Manual sweep profile Manual sweep profile offers an on site configurable sweep pattern that can be changed at any time Output level sweep time and markers are also configurable 1 TX Level Select this option to change the output from 10 to 35 dBmV 2 Sweep freqs Select this menu option to adjust 16 frequency points between 5 and 90 MHz 3 Sweep time Allows you to adjust t...

Page 65: ... for selecting pre set sweep profile 3 Sweep time Allows you to adjust the sweep time from 5mS to 10 mS Markers allows the technician to use two 1 or 2 markers Markers can be set to Maximum peak manual adjustment or off Creating a fixed sweep profile A fixed sweep profile is simply a formatted text file transferred into the Quiver using the Q browser program The file format is as follows Line 1 Fi...

Page 66: ...SB to your PC 2 Launch the Q browser program and click Update profile Click Ok when asked to confirm Navigate to the folder that contains the profile s click OK and then OK to confirm the folder being transferred The Progress bar will quickly display the transfer and clear 3 Once the progress bar is clear the transfer is complete Close Q browser and disconnect the USB cable from the Quiver Note Qu...

Page 67: ...e Play System maps will need to be configured and placed on the Arcom FTP server prior to use Discuss placing maps on the Arcom FTP server with your Arcom Digital representitive Loading maps into your Quiver Navigator App Download and install your Quiver Navigator App from i Tunes or Google Play Once installed click on the Quiver Navigator icon to launch the application After launch the app will l...

Page 68: ...TP server credentials and click connect Now use the box below the CONNECT button to navigate to the desired hub maps and click the DOWNLOAD button Your arcom Digital representitve can help with your login credentials and the locatoin of your maps Once the maps have been donwloaded click Back to return to the map view ...

Page 69: ...tly determine the return loss of devices beyond the first passive the level of all the peaks beyond the first passive should be recalculated based on the losses in all devices from the TDR to the distant point of reflection For example if the reflected signal of 23 dB comes from a device installed after two splitters with round trip losses of 7 dB in each then the actual return loss of that device...

Page 70: ...er Navigator application which uses the infromation imbedden in the QR code to recalculated and place delay and level information on a map for the user The QR Code function can be activated by pressing 0 on the Passive CPD and NTC TDR screens ...

Page 71: ... contains the details of CPD or Return Loss faults The Quiver XT includes Passive test CPD and NTC TDR responses you can use to test this feature To access the test feature use the soft keys and buttons to navigate to SETTING and then 4 QR code test Now your presented with two test options NTC TDR will be illustrated in this example ...

Page 72: ...an one devices were selected then you can either select the desired device from the pull down list or zoom in closer to your actual map location and try on the device Activate the QR reader function by clicking the QR button in upper left corner of the application screen then place the QR code within the focal grid You will feel a vibration and the screen will return to the map screen with additio...

Page 73: ...e table of corrected device Return Loss values To select the performance of specific device flags pull down the delay list at the top center of the screen select the device or delay you re interested in reviewing and press SEARCH Now only the device you selected will be displayed ...

Page 74: ... quiver response the recalculated Return Loss Value the Return Loss Quality indicated by color and the type of fault Device or cable Green Good Return Loss 17 dB Yellow Moderate Return Loss 17 dB RL 10 dB Red Poor Return Loss 10 dB The application also allows the user to select and place specific TDR response peak numbers for a closer more detailed look ...

Page 75: ...75 ...

Page 76: ...ack once received from Arcom 1 Remove the Quiver from the protective rubber boot and remove the six Philips screws from the back 2 Remove the two Philips screws from the bracket securing the battery pack 3 Unplug and remove the old battery pack 4 Reinstall the new battery pack battery bracket and back cover ...

Page 77: ...y can be used 1 Remove the two Philips head screws from the connector end of the Q AMP and slide the circuit board out of the chassis 2 Remove the old battery and reinstall anew 3 Reinsert the Circuit Board into the first slot up from the bottom 4 Reinstall the two Philips screws on the connector end of the Q AMP chassis ...

Page 78: ...INPUT Power Jack 2 5mm USB mini Type B 5pins RF FWD port F Type Male RF Return port F Type Male Operating Specifications Current draw 1 15A DC INPUT Charger Voltage 12VDC 20 3 3A Max Battery 3 7 VDC 10 4AH Charge time 3 hrs Run time 4 hrs Spectrum Analyzer FWD Port 57MHz 1GHz ResBW 6 MHz SLM mode 30 kHz spectrum mode Input levels Max 30dBmV Min 50dBmV RTN Port 2MHz 100MHz ResBW 100 kHz Input level...

Page 79: ...radar mode Forward Port Output TX chirp probe signal 150 250 MHz RX CPD echo signal bandwidth 5 to 100 MHz RF output level 30 dBmV to 50 dBmV 3 5dBmV Bandwidth of FFT spectrum analyzer 20 kHz Leakage Detector Tuner frequency step 1 kHz ResBW 20 Hz Sensitivity 150dBm RTN Sweep Generator Sweep TX Output 10 dBmV to 35 dBmV 1 5 dB 1 dB steps Fixed Sweep Up to 64 frequency steps from 5 MHz to 90 MHz in...

Page 80: ...C to 60C Operating Humidity 0 to 95 RH Interfaces Momentary Push Button Switch RF IN port 75 Ohm F Type Male RF OUT port 75 Ohm F Type Male Operating Specifications Voltage 9 Vdc 9V internal replaceable non rechargeable alkaline type battery Current draw 0 013 mA RF Gain 20 dB 30 dB Selectable Frequency Range Q AMP 5 40 5 MHz to 40 MHz Q AMP 5 70 5 MHz to 70 MHz Maximum RF Input 20 dBmV ...

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