Promax 27 User Manual
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Promax 27 User Manual

Cable tv & data analyzer
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99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
PROMAX-27
CABLE TV & DATA ANALYSER
- 0 MI1546 -

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  • Page 1 99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 PROMAX-27 CABLE TV & DATA ANALYSER - 0 MI1546 -...

  • Page 2: Safety Notes

    NOTAS SOBRE SEGURIDAD Antes de manipular el equipo leer el manual de instrucciones y muy especialmente el apartado PRESCRIPCIONES DE SEGURIDAD. El símbolo sobre el equipo significa "CONSULTAR EL MANUAL DE INSTRUCCIONES". En este manual puede aparecer también como símbolo de advertencia o precaución.

  • Page 3: Table Of Contents

    4.2.2.1 EDIT CHANNEL PLAN................. 19 4.2.3 MODEM Mode .................... 21 4.2.3.1 CONSTELLATION DIAGRAM (IQ)............23 4.2.3.2 SEARCH function ................. 25 4.2.3.3 SCAN function ..................27 4.2.3.4 SPECTRUM function................28 4.2.3.5 LOGGER function................. 30 4.2.3.6 TILT function..................33 4.2.4 REGISTERED Mode — IP NETWORK Functions ........34 4.2.4.1 VoIP ......................
  • Page 4 USER’S MANUAL. PROMAX-27 Method of maintenance.................. 59 5.2.1 Cleaning the cover..................59 Components which user can not replace ............60 5.3.1 Not replaceable fuses by user ..............60 APPENDIXES ........................ 61 APPENDIX A.- MEASUREMENT OF THE MODULATION ERROR RATIO (MER)..61 APPENDIX B.- PRINCIPLE OF QAM MODULATION.

  • Page 5: General

    The instrument is powered by an internal rechargeable battery. In the design of the PROMAX-27 it has dedicated particular attention on making a practical and precise instrument, as easy to use. A simple alphanumeric keypad that...

  • Page 6: Specifications

    BE (Best Effort) based on the standard DOCSIS / EuroDOCSIS. In short, implementation of all these functions into an light instrument of one kilo and a half weight, ergonomic design and robust, makes PROMAX-27 into an unparalleled tool at fieldwork. Specifications...
  • Page 7 USER’S MANUAL. PROMAX-27 < ± 5 kHz. Accuracy Carrier level 60 to 112 dBµV (selectable in 1 dB steps). Signal level resolution 1 dB. Signal level accuracy 3 dB. Modulation QPSK, 8QAM, 16QAM, 32QAM, 64QAM. Symbol Rate from 160 to 5120 ksym/s.
  • Page 8 USER’S MANUAL. PROMAX-27 Constellation Diagram ITU-J83 (Annex A/B/C) and DOCSIS/EuroDOCSIS compliant signals. Lock range -10 dBmV to 60 dBmV. Symbol rate Measurement range 1000 to 7000 Msym/s for QAM 16/64/256. Datalogger Power level, BER, MER and constellation diagram can be stored, for data dumping to printer or PC.
  • Page 9 USER’S MANUAL. PROMAX-27 SCAN Span Variable: 10, 30, 100, 300 MHz and full band (from 5 to 862 MHz depending on channel plan). Dynamic range Variable from 20 to 120 dBuV in 10 dB steps SPECTRUM ANALYSER Span From 1 to 100 MHz (1, 5, 15, 30, 50, 100 MHz).
  • Page 10 CI-023 Portable serial printer. CC-209 Data transfer cable to PC or printer. RM-027 Remote control software for PROMAX-27. AT-20C 20 dB attenuator. RECOMMENDATIONS ABOUT THE PACKING It is recommended to keep all the packing material in order to return the equipment, if necessary, to the Technical Service.

  • Page 11: Safety Rules

    USER’S MANUAL. PROMAX-27 2 SAFETY RULES Generals The safety could not be assured if the instructions for use are not closely followed. Use this equipment connected only to devices or systems with their common at ground potential. This equipment can be used in Over-Voltage Category I installations and Pollution Degree 2 environments.

  • Page 12: Descriptive Examples Of Over-Voltage Categories

    USER’S MANUAL. PROMAX-27 Symbols related with safety: DIRECT CURRENT ON (Supply) ALTERNATING CURRENT OFF (Supply) DIRECT AND ALTERNATING DOUBLE INSULATION (Class II protection) GROUND TERMINAL CAUTION (Risk of electric shock) PROTECTIVE CONDUCTOR CAUTION REFER TO MANUAL FRAME TERMINAL FUSE EQUIPOTENTIALITY Descriptive Examples of Over-Voltage Categories Cat.

  • Page 13: Installation

    USER’S MANUAL. PROMAX-27 3 INSTALLATION Power Supply The PROMAX-27 is a portable instrument supplied by a built-in Li-Ion battery. Before taking any measurement, we must ensure that the battery is charged. 3.1.1 Charging the battery The instrument is supplied with a mains adapter in order to power or charge the instrument.

  • Page 14: Recommendations Using The Battery

    ( ), the battery must be recharged. When starting up with a very low level battery, may be the PROMAX-27 could start up, because of residual energy remaining at the battery, but the equipment will be disconnected automatically BEFORE displaying on the screen the low level battery indicator.

  • Page 15: Operating Instructions

    USER’S MANUAL. PROMAX-27 4 OPERATING INSTRUCTIONS Description of the controls and elements Front panel Figure 2.- Front panel view. F-F (or F-BNC or F-IEC) adapter. Maximum input voltage level 60 VAC rms / 50-60 Hz. "F" male base connector. Graphic display with back lighting.
  • Page 16 USER’S MANUAL. PROMAX-27 Connection to computer or printer. CC-209 specific connection cable. Do not connect any cable different than the one supplied by the manufacturer, otherwise the instrument may suffer serious damage. Contrast Adjustment LAN connector (ETHERNET) Navigation buttons / Cursor keys.

  • Page 17: Operation Instructions

    USER’S MANUAL. PROMAX-27 Operation Instructions The five main functions of PROMAX-27 are accessible from the initial menu, pressing the key [13]: 1. MODEM MODE: This option allows you to check the response of a data transmission system DOCSIS / EuroDOCSIS. It works on both uplink and downlink.
  • Page 18 USER’S MANUAL. PROMAX-27 Figure 4.- General view of menu tree. (See quick reference guide). Page 14 07/2008...

  • Page 19: Setup Mode

    USER’S MANUAL. PROMAX-27 4.2.1 SETUP Mode To access the SETUP mode for configuring system: [13]. 1.- Press key 2.- Press softkey SETUP [F5]. It will appear a screen with the configuration parameters of the system (Figure 5.-). Figure 5.- SETUP Screen.
  • Page 20 USER’S MANUAL. PROMAX-27 Modifiable parameters are next: a) HOUR It indicates the current time. Enter hour and minutes by alphanumeric keypad. To enter the symbol “:” between hours and minutes, you should use the key which is in the alphanumeric keypad.

  • Page 21: Config Mode

    USER’S MANUAL. PROMAX-27 BATTERY: Indicates the battery charge in voltage. FIRMWARE: Indicates control program version. SERIAL NUMBER: It is a unique identifier number for the instrument. 4.2.2 CONFIG Mode To access the CONFIG mode for setting the general configuration of the system: 1.- Press key...
  • Page 22 USER’S MANUAL. PROMAX-27 5.- To exit Configuration Mode and return to the main menu, press again the MENU key [13] Modifiable parameters are next: CHANNEL PLAN It allows you to select the channel plan among the ten ones stored by default in the instrument: CCIR, EIA, HRC, IRC, OIRL, UK, AUNAD, ST2L, AUST, ONO.

  • Page 23: Edit Channel Plan

    USER’S MANUAL. PROMAX-27 NOISE FREQUENCY (Only for digital channels) Frequency at which is measured the level of noise for digital channels. STEP FREQUENCY This option allows you to select the step frequency at the frequency tuning modes and at the GENERATOR mode.
  • Page 24 USER’S MANUAL. PROMAX-27 At the bottom of the screen it appears the following options: BACK [F1] and [F5]: To return to the previous general configuration screen CONFIG. ALL D. / ALL A [F3].: If you select this option you could change the type of signal defined in all channels to digital or analogue, as appropriate.

  • Page 25: Modem Mode

    USER’S MANUAL. PROMAX-27 SYSTEM (only for analogue channels): System type and communication standard. It can be selected among systems PAL / SECAM / NTSC and standards B/G, D/K, L , I, M, N. AUDIO FREQUENCY (only for analogue channels): The frequency that the audio signal is transmitted.
  • Page 26 USER’S MANUAL. PROMAX-27 DOCSIS/EuroDOCSIS ANALYSER 01:43:09 UPSTREAM: DOWNSTREAM: dBuV dBuV 27.05 MHz/5 254.50 MHz S14/CCIR MOD: QAM64 7.00 1280 ksym/s MOD: QAM64 2560 ksym/s PreBER: 1.0E-8 STARTING IP NETWORK SPECTRUM LOGGER FREQ Figure 9.- Initial MODEM Screen. To change between displaying downstream data or the constellation diagram press IQ / DOWN [F2].

  • Page 27: Constellation Diagram (Iq)

    USER’S MANUAL. PROMAX-27 Bandwidth. MOD: Modulation. Symbol Rate. At the bottom of the screen are displayed the following options: IP NETWORK [F1]: It reports about data network (refer to section 4.2.4). DOWN / IQ [F2]: Pressing this key you can switch between downstream...
  • Page 28 USER’S MANUAL. PROMAX-27 It is the graphic representation of the Constellation Diagram (Figure 10.-) for DVB- QAM digital signal. For details see Appendix B “Principle of QAM Modulation. The constellation Diagram”. E/DOCSIS ANALYSER UPSTREAM dBuV 27.05 MHz/01 MOD: QAM64 1280...

  • Page 29: Search Function

    USER’S MANUAL. PROMAX-27 At the bottom of the screen is shown the following options: IP NETWORK [F1]: Registers into the network it reports about data network (refer to section 4.2.4). DOWN / IQ [F2]: It switches between downstream data viewing (refer to section 4.2.3.1) and downstream constellation viewing.
  • Page 30 USER’S MANUAL. PROMAX-27 DOCSIS/EuroDOCSIS SEARCHER 01:43:09 CHANNEL PLAN CCIR DOWNSTREAM: C33 /570.00 C73 /363.00 dBuV S14 /254.50 MOD: QAM64 ----/---.-- SR : 2560 ksym/s ----/---.-- ----/---.-- UCI: 1/2/3/4/5 ----/---.-- SYSTEM: ---- ----/---.-- ONLY DIGITAL CH. SPECTRUM MODEM SCAN START Figure 11.- SEARCH function.

  • Page 31: Scan Function

    USER’S MANUAL. PROMAX-27 4.2.3.3 SCAN function To access the SCAN function [13]. 1.- Press key 2.- Press softkey MODEM [F1]. 3.- Press softkey SPECTRUM / SCAN [F3]. 4.- Press softkey SCAN [F4] (if coming from SPECTRUM screen). The SCAN function shows numerically the level of the channel where the cursor, which is at the top of the screen, is pointing (Figure 12.-).

  • Page 32: Spectrum Function

    USER’S MANUAL. PROMAX-27 At the bottom of the screen are shown the following options: SPECTRUM [F1]: It leads to the SPECTRUM screen (refer to section 4.2.3.4). SEARCH [F2]: It makes an exploration of all channels DOCSIS / EuroDOCSIS presents at the frequency band of the active channel plan (refer to section 4.2.3.2).
  • Page 33 USER’S MANUAL. PROMAX-27 Figure 13.- SPECTRUM function in MODEM mode. At the SPECTRUM function, the meter represents the spectrum of frequencies where the marker is. It provides an agile analysis of the whole band. Data on the screen are: PWR: Power received from signal.

  • Page 34: Logger Function

    USER’S MANUAL. PROMAX-27 LEVEL / CHAN / FREQ / SPAN [F5]: Pressing this key you can navigate among editable parameters. To change them, use the Cursor keys or the alphanumeric keypad as appropriate. It can be edited the LEVEL, to change the margin of the power on the vertical axis of the graph, CHANNEL, to change the channel we are analysing;...
  • Page 35 Attenuation until CMTS Bandwidth and Frequency Symbol rate The PROMAX-27 can store in its memory up to 30 acquisitions or loggers in MODEM mode. These measurements are stored for later viewing, printing or transfer to a PC. On the left side of the screen (Figure 14.-), you can see the recording number, followed by time and date it was saved and the name given.
  • Page 36 USER’S MANUAL. PROMAX-27 LOGGER 01 01:43:09 UPSTREAM DOWNSTREAM dBuV dBuV 27.05 MHz 254.50 MHz S14/CCIR MOD: QAM64 MOD: QAM64 1280 ksym/s 2560 ksym/s PreBER: 1.0E-8 BACK PRINT BACK Figure 15.- Logger Viewing in MODEM mode. Pressing [F1] or [F5] you will return to the previous screen (LOGGER).

  • Page 37: Tilt Function

    USER’S MANUAL. PROMAX-27 4.2.3.6 TILT function To access the TILT function: 1.- Press key [13]. 2.- Press softkey MODEM [F1]. 3.- Press softkey SPECTRUM / SCAN [F3]. 4.- Press softkey SCAN [F3] (if coming from SPECTRUM screen). 5.- Press softkey TILT [F4].

  • Page 38: Registered Mode - Ip Network Functions

    USER’S MANUAL. PROMAX-27 4.2.4 REGISTERED Mode — IP NETWORK Functions In order to use the REGISTERED mode functions is necessary to register the instrument in the network, configuring the information needed to identify it, such as IP, Netmask and Gateway (refer to section 4.2.1). If you are not registered in the network you will be able to access these functions but they will be disabled.

  • Page 39: Voip

    CMTS provides a fixed-size grant to a service flow at fixed intervals without additional polling or interaction. The PROMAX-27 allows the user to establish a service flow to verify the quality of service based on type UGS type. Flow services are used to verify the network between the test point and the CMTS.
  • Page 40 USER’S MANUAL. PROMAX-27 To access the VoIP function: 1.- Press key [13]. 2.- Press softkey MODEM [F1]. 3.- Press softkey RED IP [F1]. 4.- The instrument starts the registration process in the CMTS of the NETWORK. On the display it will appear the word "TUNING" during the process. You must wait a few minutes until it is registered.

  • Page 41: Iptv

    USER’S MANUAL. PROMAX-27 LATENCY: It is the time delay, between initial input and output due to transport or processing. It shows the minimum, average and maximum measurement. JITTER: It is an unwanted variation of one or more characteristics of a periodic signal.
  • Page 42 The PROMAX-27 allows the user to establish a service flow to verify the quality of service based on type rtPS. Flow services are used to verify the network between the test point and the CMTS.

  • Page 43: Ping

    USER’S MANUAL. PROMAX-27 On the display (Figure 20.-) are shown different measurements: PING ADDRESS: Address where PING is send. When selecting IP address, if you use the cursor keys you will access to last IPs entered by the user. NODE: Indicates the node where you are connected.
  • Page 44 To perform the PING test, a PING (Packet Internet Grouper) is sent. It is about transmitting data packets point to point between PROMAX-27 serving as cable modem and another remote point access to the network that answer to the transmission. These PING are a set data packets with a request and response echo.

  • Page 45: Traceroute

    USER’S MANUAL. PROMAX-27 Data shown on the screen (Figure 21.-) are: PING ADDRESS: It indicates the remote address of the device or the access point to verify. This is an editable field. PING NUMBER: It indicates the number of PING attempts.
  • Page 46 USER’S MANUAL. PROMAX-27 This function can help you determine why a connection to a given server might be poor, and can offer help you figure out where exactly the problem is. It also shows you how systems are connected to each other, letting you see how your ISP connects to the Internet as well as how the target system is connected.

  • Page 47: Tv Mode

    USER’S MANUAL. PROMAX-27 SEND [F2]: Sends the PING. 4.2.5 TV Mode To access the TV mode for CATV measurement: 1.- Press key [13]. 2.- Press softkey TV [F2]. The TV function includes three different operation modes: Analogue, Digital and SLM (Signal Level Meter). Next we explain measurements of each mode.

  • Page 48: Tv Digital Mode

    USER’S MANUAL. PROMAX-27 4.2.5.1 TV DIGITAL mode To access this measurement mode from TV mode, press [F1] until you see at the top of the screen “DIGITAL TV POWER METER” (Figure 23.-). DIGITAL TV POWER METER 01:43:09 CH: C31/CCIR dBuV BW: 7.00 MHz...

  • Page 49: Constellation Diagram Function

    USER’S MANUAL. PROMAX-27 CHAN / BW / FREQ [F5]: Pressing this key you can navigate among editable parameters. To change them, use the Cursor keys or the alphanumeric keypad as appropriate. FREQ for changing the frequency value of the tuned channel, BW for changing the bandwidth and CHANNEL for changing the channel of the channel plan.
  • Page 50 USER’S MANUAL. PROMAX-27 Measures displayed on this screen are next: PWR: Power input level. MER: Modulation Error Ratio. PreBER: Measurement before correction. PostBER: Measurement after correction. Locked / Unlocked: It shows whether the signal is locked or not. At the bottom of the screen you will see next options: ANALOG [F1]: It leads to TV Analog mode.

  • Page 51: Analogue Mode

    USER’S MANUAL. PROMAX-27 NOTE: Access to the function SCAN / SPECTRUM switches depending on the type of tuning you are doing. In case you are tuning a signal using frequency, it will be displayed the SPECTRUM function first. In case you are tuning a signal using the predefined channels from the channel plan, it will be displayed the SCAN function first.

  • Page 52: Audio Function

    1.- Press key [13]. 2.- Press softkey TV [F2]. 3.- Press softkey [F1] until you find ANALOG mode. 4.- Press softkey AUDIO [F2]. In analogue mode the PROMAX-27 allows obtaining a demodulated audio signal and showing its characteristics. Page 48 07/2008...
  • Page 53 USER’S MANUAL. PROMAX-27 Figure 26.- Analogue Audio Signal Measurement Measurements shown on the screen (Figure 26.-) are: Signal tuned frequency. Channel and plan channel. LVL: Audio carrier level. Audiocarrier frequency. V/A: Video / Audio Ratio. ∆F: Audio carrier Offset. At the bottom of the screen is shown the following options: SLM [F1]: It leads to Signal Level Meter screen.

  • Page 54: Slm Mode

    USER’S MANUAL. PROMAX-27 4.2.5.3 SLM mode To access the Signal Level Meter from TV mode, press [F1] until you see at the top of the screen “SIGNAL LEVEL METER” (see Figure 27.-). SIGNAL LEVEL METER 01:43:09 dBuV CH: C31/CCIR 100 110 120...

  • Page 55: Common Functions In Tv Mode

    USER’S MANUAL. PROMAX-27 LOGGER [F4]: Through this function you can store measurements in the memory of the instrument for later viewing, printing or transfer to a PC (refer to section 4.2.5.4.3). FREQ / VOLUME / CHAN [F5]: Pressing this key you can navigate among editable parameters.

  • Page 56: Spectrum Function

    USER’S MANUAL. PROMAX-27 LEVEL / CHAN / SPAN [F5]: Pressing this key you can navigate among editable parameters. To change them, use the Cursor keys or the alphanumeric keypad as appropriate. It can be edited the LEVEL, to change the margin of the power on the vertical axis of the graph, CHANNEL, to change the channel we are analysing;...

  • Page 57: Logger Function

    USER’S MANUAL. PROMAX-27 DIGITAL / ANALOG / SLM [F3]: It leads to the first screen of the measurement mode (This option changes regarding to the screen you come). SCAN [F4]: It goes to the SCAN screen (refer to section 4.2.5.4.1).
  • Page 58 Digital channel BER measurement. Symbol rate. The PROMAX-27 can store in its memory up to 50 acquisitions or loggers in TV mode and analyse up to 140 channels in each one. These measurements are stored for later viewing, printing or transfer to a PC.
  • Page 59 USER’S MANUAL. PROMAX-27 At the bottom of the screen you will see next options: STORE [F1]: Measurements corresponding to channels of the channel plan selected are will be score in a logger. DEL [F2]: It deletes the logger that the cursor is pointing at.

  • Page 60: Tilt Function

    USER’S MANUAL. PROMAX-27 C96 27dBuV --- 30dB <1.0E-8 C97 19dBuV 31dB 27dB C98 24dBuV 26dB 23dB C99 26dBuV 22dB 19dB C14 28dBuV --- 30dB <1.0E-8 C15 24dBuV 23dB 33dB C16 24dBuV 22dB 16dB C17 27dBuV --- 31dB <1.0E-8 C18 27dBuV --- 28dB <1.0E-8...

  • Page 61: Test Signal Generator Mode

    USER’S MANUAL. PROMAX-27 4.2.6 TEST SIGNAL GENERATOR mode. To access the TEST SIGNAL GENERATOR mode: [13]. 1.- Press key 2.- Press softkey GTOR [F3]. It is displayed the TEST SIGNAL GENERATOR screen (Figure 32.-). Figure 32.- Setting parameters of the test signal.

  • Page 62: Connecting To Devices

    USER’S MANUAL. PROMAX-27 CONNECTING TO DEVICES. The PROMAX-27 permits the connection to a PC or to a serial printer for data transfer, by means of the connection cable model CC-PX27. Do not connect any cable other than that supplied by the manufacturer, otherwise serious damage may be caused to the equipment.

  • Page 63: Maintenance

    USER’S MANUAL. PROMAX-27 5 MAINTENANCE This part of the manual describes the maintenance procedures and the location of faults. Instructions for returning by mail Instruments returned for repair or calibration, either within or outwit the guarantee period, should be forwarded with the following information: Name of the Company, name of the contact person, address, telephone number, receipt (in the case of coverage under guarantee) and a description of the problem or the service required.

  • Page 64: Components Which User Can Not Replace

    USER’S MANUAL. PROMAX-27 Components which user can not replace 5.3.1 Not replaceable fuses by user To be replaced by qualified personnel. Its position identifier and characteristics are: F001 y F002: T 125 V Page 60 07/2008...

  • Page 65: Appendixes

    USER’S MANUAL. PROMAX-27 APPENDIXES APPENDIX A.- MEASUREMENT OF THE MODULATION ERROR RATIO (MER). Analogue and digital carriers are very different in terms of the signal content and the power distribution over the channel. Therefore need to be measured differently. The amount of distortion in a system is related to the total power of all of the carriers making accurate power measurements critical for optimum performance.
  • Page 66 USER’S MANUAL. PROMAX-27 64 QAM set decoders require better than 23 dB MER to operate. To allow for system degradation, a margin of at least 3 or 4 dB is preferred. However, QAM 256 set decoders require better than 28 dB MER to operate with margins of 3 dB at least.

  • Page 67: Diagram

    USER’S MANUAL. PROMAX-27 APPENDIX B.- PRINCIPLE MODULATION. CONSTELLATION DIAGRAM The modulation process implies to transfer the information contained in a signal to a high frequency carrier. Modulation QAM, in concrete uses modulation in quadrature consisting of two carriers each one of the same frequency, one called-I (in phase) and another out of phase 90°...
  • Page 68 USER’S MANUAL. PROMAX-27 Figure 35 shows the other signal (Q in quadrature) on a vertical axis to consider the 90° phase change. Figure 36.- I-Q states combination Figure 36 shows the combination of these two signals. This image constitutes the Constellation Diagram of the modulated digital signal.

  • Page 69: And Digital Channels

    USER’S MANUAL. PROMAX-27 APPENDIX C.- FREQUENCY OFFSET ADJUSTMENT TUNING ANALOGUE AND DIGITAL CHANNELS. It is possible to introduce an offset of the tuning central frequency for the channels defined in each channel plan using the ∆FCH parameter (± 2.5 MHz). Therefore, it is possible to adapt the measures to irregular tunings, due to small displacements on channel central frequencies that are defined by the standard channel plan.

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