Keysight N7744A Getting Started Manual
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Keysight N7744A Getting Started Manual

Keysight N7744A Getting Started Manual

Optical power meter
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Keysight N77xx Series
Getting Started
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Summary of Contents for Keysight N7744A

  • Page 1 Keysight N77xx Series Getting Started Guide...
  • Page 3 OR OF ANY INFORMATION hazard. It calls attention to an CONTAINED HEREIN. SHOULD Herrenberger Str. 130 operating procedure, practice, KEYSIGHT AND THE USER HAVE A or the like that, if not correctly 71034 Böblingen, Germany SEPARATE WRITTEN AGREEMENT performed or adhered to, could...

  • Page 4: Table Of Contents

    Getting Started Keysight N7744A and N7745A Optical Power Meter Keysight N7747A and N7748A Optical Power Meter Keysight N775xA Optical Attenuator and Power Meter and N776xA Optical Attenuator 8 Keysight N7711/4A Single and 4-Port Tunable Laser System Source 9 Keysight N773x Optical Switch...
  • Page 5 Panels - Tunable Laser Source 26 Front Panels - Optical Switches Rear Panel Making Optical Connections Making Optical Connections Making Quad-adapter Connections on the Keysight N7744/45A Multiport Power Meter Optical Output Electrical Connectors LAN Interface LAN Interface Selecting a LAN Network...
  • Page 6 Finding the IP Address of an instrument Connecting over LAN N77xx Viewer Common User Interface Functions Software Installation Connecting to an Instrument 47 Viewing Measurements and Settings 50 Saving and Recalling Configurations Controlling the Instrument Refresh Index Keysight N77xx Series...
  • Page 7 Keysight N77xx Series...

  • Page 8: Getting Started

    Getting Started Guide Getting Started Keysight N7744A and N7745A Optical Power Meter The Keysight N7744A and Keysight N7745A are LXI compliant optical power meters with 4 or 8 power-sensor ports respectively. They address productivity challenges by increasing throughput and operational...

  • Page 9: Keysight N7747A And N7748A Optical Power Meter

    All attenuators feature power control functionality to set the output power level of the attenuator. The Keysight N7751A and Keysight N7752A are optical attenuators for single mode fiber with one and two single-mode fiber attenuator channels respectively and two extra optical power meter channels, for convenient power measurements and setup calibration.

  • Page 10: Keysight N7711/4A Single And 4-Port Tunable Laser System Source

    81950A please refer to the Compact Tunable Laser data sheet, publication no. 5988-8518EN. All models can reach any wavelength point within their specified wavelength range just like all other Keysight tunable lasers. In this mode, Keysight N77xx Series...

  • Page 11: Keysight N773X Optical Switch

    Getting Started code compatibility with existing test setups based on Keysight's range of full-size and compact tunable lasers is a great asset. In system loading applications, it may be preferable to grid-tune the lasers like system transmitters, simply by changing the channel index. The channel grid is adjustable to standard ITU-T grid spacing like 50 GHz, and to arbitrary grids.

  • Page 12: Initial Inspection

    For dependable multimode transceiver testing, the instrument used to set the power level should not change this modal distribution. The Keysight multimode switches are designed with very short collimated paths between fiber, so signals propagate in practically the same distribution as through uninterrupted multimode fiber.

  • Page 13: Return Shipments To Keysight Technologies

    Getting Started Return Shipments to Keysight Technologies If the instrument is to be shipped to an Keysight Technologies Sales/Service Office, attach a tag showing owner, return address, model number and full serial number and the type of service required. The original shipping carton and packing material may be reusable, but...

  • Page 14: Safety Considerations

    Keysight Technologies Inc. assumes no liability for the customer’s failure to comply with these requirements. This product has been designed and tested in accordance with IEC...

  • Page 15: General

    To avoid hazardous electrical shock, do not perform electrical tests when there W A R N I N G are signs of shipping damage to any portion of the outer enclosure (covers, panels, and so on). Keysight N77xx Series...

  • Page 16: Operating Environment

    Keysight N7711A, N7714A N7714A Options 210, 222, 240 Options 201, 222, 204 Laser Type ECL-Laser InGaAsP ECL-Laser InGaAsP Wavelength range 1527nm-1566nm 1570nm-1609nm Max. CW output power* 50 mW 50 mW Beam waist diameter 9 µm 9 µm Keysight N77xx Series...

  • Page 17: Laser Safety Labels

    In order to meet the requirements of IEC 60825-1 we recommend that you stick the laser safety labels, in your language, onto a suitable location on the outside of the instrument where they are clearly visible to anyone using the instrument. Keysight N77xx Series...

  • Page 18: Input/Output Signals

    The type of power cable shipped with each instrument depends on the country of destination. Please refer to "Accessories" section in the User's Guide for the part numbers of available power cables. Keysight N77xx Series...

  • Page 19: Instrument Markings

    • Defective, damaged, or malfunctioning laser sources must be returned to an Keysight Technologies Service Center. Do not operate the instrument in the presence of flammable gases or fumes. Operation of any electrical instrument in such an environment constitutes a definite safety hazard.

  • Page 20: Ac Line Power Supply Requirements

    Do not dispose in domestic household waste. To return unwanted products, contact your local Keysight office, or see for more information. AC Line Power Supply Requirements AC Line Power Supply Requirements - Overview This secton provides information on: •...
  • Page 21 Do not negate this protective action by using an extension cord without a protective conductor. • Do not interrupt the protective earth connection intentionally. The AC power requirements are summarized on the rear panel of the instrument. Keysight N77xx Series...

  • Page 22: Changing The Fuse

    There is no user replaceable fuse for the instrument. Changing the fuse should be C A U T I O N carried out only by Keysight Technologies service personnel. If you need to get the fuse replaced refer to your nearest Keysight Technologies Sales/Service Office.

  • Page 23: Humidity

    75 mm (3 inches) of clearance at the rear, and at least 25 mm (1 inch) of clearance at each side. Failure to provide adequate air clearance may result in excessive internal temperature, reducing instrument reliability. The instrument should not be operated when resting on its rear or side panels. Keysight N77xx Series...

  • Page 24: Input And Output Connectors

    Getting Started Figure 5 Correct Operating Position (shown here for the Keysight N7744/5A, valid also for the N7747/48A, N7751/2A, Keysight N7761/2/4A, N7766/68A, N773xA and the N7711/4A) Input and Output Connectors Input and Output Connectors - Overview This section provides information on: •...

  • Page 25: Front Panels - Multiport Power Meters

    Getting Started Front Panels - Multiport Power Meters Figure 6 Front panel of the Keysight N7744A 4-Channel Optical Multiport Power Meter Figure 7 Front panel of the Keysight N7745A 8-Channel Optical Multiport Power Meter Figure 8 Front panel of the Keysight N7747A 2-Channel Optical Power Meter...

  • Page 26: Front Panels - Optical Attenuators

    Getting Started Front Panels - Optical Attenuators Figure 10 Front panel of the Keysight N7751A 1-Channel Optical Attenuator and 2-Channel Power Meter Figure 11 Front panel of the Keysight N7752A 2-Channel Optical Attenuator and 2-Channel Power Meter Figure 12 Front panel of the Keysight N7761A 1-Channel Optical Attenuator...
  • Page 27 Getting Started Figure 14 Front panel of the Keysight N7764A and N7768A 4-Channel Optical Attenuator Front Panels - Tunable Laser Source Figure 15 Front panel of the Keysight N7711A Single-Port Tunable Laser System Source Figure 16 Front panel of the Keysight N7714A Single-Port Tunable Laser...

  • Page 28: Panels - Optical Switches

    Getting Started Front Panels - Optical Switches Figure 17 Front panel of the Keysight N7731A 2-Channel 1x4 Optical Switch Figure 18 Front panel of the Keysight N7734A 1-Channel 1x13 Optical Switch Rear Panel Figure 19 Rear panel of the Keysight N77xx Series instruments...

  • Page 29: Making Optical Connections

    Figure 20 Angled and Straight Connector Symbols The above figure shows the symbols that tell you whether the optical connectors of your instrument are angled or straight. The angled contact connector symbol is colored green. Keysight N77xx Series...
  • Page 30 The N774xA power meters do not make contact to the fiber connector faces and can be used with either angled or straight connectors. The N7744A and N7745A use the quad-adapters described below. The N7747A and N7748A use the interchangeable 81000xI connector interfaces, selected for the desire connector type.

  • Page 31: Making Quad-Adapter Connections On The Keysight N7744/45A Multiport Power Meter

    Getting Started Making Quad-adapter Connections on the Keysight N7744/45A Multiport Power Meter Figure 21 Connecting Optical Fibers Before you attach a quad-adapter or fiber, you should make sure they are clean. N O T E This is important for accurate measurements.

  • Page 32: Optical Output

    Optical Output Polarization Maintaining Fiber A Polarization maintaining fiber (PMF) output is standard for Keysight N7711/4A tunable laser system sources. PMF is aligned to maintain the state of polarization. A well defined state of polarization helps ensure constant measurement conditions.

  • Page 33: Electrical Connectors

    C A U T I O N to this input connector. The Trigger Output is a TTL output. Do not apply an external voltage to this connector. No external voltage should be applied to the analog output connectors of the N7747A and N7748A. Keysight N77xx Series...

  • Page 34: Lan Interface

    Private networks can reduce the possibility of tests being disrupted by unplanned or unauthorized access. Code generation for test systems on a private network is often simplified, as provisions against unauthorized users may not be required. Keysight N77xx Series...

  • Page 35: Performance

    LAN network is required. In addition to supporting multiple users, site LANs often offer the advantage of being maintained by IT departments. When using a site LAN, consult your IT department regarding LAN configuration and security issues. Keysight N77xx Series...

  • Page 36: Connecting The Lan Cable

    For private LAN networks that include a switch or router, use standard LAN cables for all network connections. Do not use a crossover cable. Site Network Connections The following figure shows a typical LAN cable connection for a site network. Keysight N77xx Series...
  • Page 37 There may be a delay between making the LAN link (yellow status) and getting the IP address (green status). This delay may be longer if there is no DHCP server, for example when the instrument is connected directly to a PC. Keysight N77xx Series...

  • Page 38: Gpib Interface

    Pressing and holding the button for 3 seconds will reset the LAN parameters to the factory default. This includes changing the password for modifying the configuration via LAN back to the default "Keysight". This is equivalent to the following sequence of programming commands: :SYSTem:COMMunicate:ETHernet:RESet...

  • Page 39: Connector

    Connector Part Number: 1251-0293 Figure 27 GPIB Connector Keysight Technologies products delivered now are equipped with connectors C A U T I O N having ISO metric-threaded lock screws and stud mounts (ISO M3.5×0.6) that are black in color. Earlier connectors may have lock screws and stud mounts with English-threaded lock screws and stud mounts (6-32 UNC) that have a shiny nickel finish.

  • Page 40: Usb Interface

    The GPIB line screens are not isolated from ground. N O T E USB Interface Before connecting the instrument over USB, install the Keysight I/O Libraries N O T E Suite, which is included on a CD with the instrument.

  • Page 41: Front Panel Indicators

    (available on the CD supplied with the instrument, or from www.Keysight.com). Connecting over USB The screenshots show the Keysight N7745A Multiport Power Meter. The same N O T E procedure applies when connecting an Keysight N7744/7/8A Multiport Power Meter, an Keysight N7751/2A Optical Attenuator and Power Meter, or an Keysight N7761/2/4/6/8A Optical Attenuator or an Keysight N7711/4A Tunable Laser System Source or an N773x Optical Switch.
  • Page 42 Getting Started 1 If it is not already running, start the Keysight Connection Expert software. Figure 30 Keysight Connection Expert software 2 Attach the instrument to the USB. The first time you attach the instrument, follow the instructions on the screen to select the driver for this instrument.
  • Page 43 1 Connect to the instrument over USB, as described above. 2 Select the instrument in the list. Figure 32 Select the instrument 3 Click on “Send commands to this instrument”. The default command is the *IDN? query. Figure 33 *IDN? query 4 Enter the command :SYSTem:COMMunicate:ETHernet:IPADdress:CURRent? Keysight N77xx Series...
  • Page 44 LED on the front panel is green. See, “ LAN Interface” on page 33 more information to connecting over LAN. 2 If it is not already running, start the Keysight Connection Expert software. 3 Select “LAN (TCPIP0)” in the list.
  • Page 45 4 Click on “Add an instrument” in the Task Guide. 5 Wait for the scan to finish. 6 Select the instrument in the list. Figure 36 7 To show the description of the instrument, check the box for *IDN? query and click on "Find Again". Keysight N77xx Series...
  • Page 46 8 Select the instrument in the list to see the associated tasks (in the Task Guide on the left) and information (on the right). • For the N774x Multiport power meters, click on the “Instrument Web Interface” button to control the instrument directly. Keysight N77xx Series...
  • Page 47 SCPI commands (described in the Programming Guide available on the CD supplied with the instrument or from www.Keysight.com), or using the 816x VXI Plug&Play driver, version 4.4 or higher. You can also use the IVI-COM driver for the N7744A and N7745A Multiport power meters. Keysight N77xx Series...

  • Page 48: N77Xx Viewer Common User Interface Functions Software Installation

    Windows operating system. The installation package is distributed on the instrument CD and is available on the internet via the Package Manager at www.Keysight.com/find/n7700. Using the Viewer also requires a VISA package to be installed, usually with the Keysight IO Library Suite.

  • Page 49: Connecting To An Instrument

    3 The list shows instruments that have been given a VISA address. If your instrument is not in the list, 1 Use the Keysight Connection Expert to check your instrument has a VISA address 2 Click on the “Scan Again” button.
  • Page 50 5 For instruments you use regularly, you can add a link on your desktop by putting a check mark in the box to “Place a shortcut on the Desktop”. 6 Click on the “OK” button to finish the connection. Keysight N77xx Series...

  • Page 51: Measurements And Settings

    Figure 41 Viewing the measurement on a single channel attenuator/power meter (left) or tunable laser (right) Viewing all channels 1 Click on "Overview" to open a window with the measurements on all channels. Keysight N77xx Series...

  • Page 52: And Recalling Configurations

    2 Enter or select the setting to which you want to save it. Figure 43 Saving a configuration 3 Click on the “OK” button. Recalling a configuration 1 In the File menu, select Load. 2 Enter or select the setting you want to retrieve. Keysight N77xx Series...

  • Page 53: Controlling The Instrument Refresh

    This is useful if, for example, more than one person can control the instrument. 2 When you have set all the values, click on the “OK” button. Keysight N77xx Series...

  • Page 54: Index

    Front Panels - Optical Attenuators, Front Panels - Optical Switches, 27 Adapters, 37 Operating Environment, 15 Front Panels - Tunable Laser Source, Keysight N77-Series optical switch, Optical connectors, 28 Optical attenuators, 28 Keysight N7745A, 7 Keysight N7751A, 8 Keysight N7752A, 8...
  • Page 55 Index Viewing Measurements and Settings, Keysight N77xx Series...
  • Page 57 This information is subject to change without notice. © Keysight Technologies 2019 Edition 7.1, January 2019 www.keysight.com...

This manual is also suitable for:

N77 seriesN7747aN7745aN7748aN7751aN7762a ... Show all

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