Newport 708 Series User manual

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Model 708 8-Channel Butterfly
Telecom Laser Diode Mount
User's Manual
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Printed 17-Mar-00
Corporate Headquarters Canada Italy Netherlands Taiwan R.O.C.
Newport Corporation Telephone: 905-567-0390 Telephone: 02-924-5518 Telephone: 030-6592111 Telephone: 2-2769-9796
1791 Deere Avenue Facsimile: 905-567-0392 Facsimile: 02-923-2448 Facsimile: 030-6570242 Facsimile: 2-2769-9638
Irvine, CA 92714 France Japan Switzerland United Kingdom
Telephone: 949-863-3144 Telephone: 1-60 91 68 68 Telephone: 03-5379-0261 Telephone: 01-740-2283 Telephone: 01635-521757
Facsimile: 949-253-1800 Facsimile: 1-60 91 68 69 Facsimile: 03-5379-0155 Facsimile: 01-740-2503 Facsimile: 01635-521348
Belgium Germany
Telephone: 016-402927 Telephone: 06151-36 21-0
Facsimile: 016-402227 Facsimile: 06151-36 21-52
Newport Corporation, Irvine,
California, has been certified
compliant with ISO 9002 by the
British Standards Institution.
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Limited Warranty
Newport warrants that this product will be free from defects in materials and workmanship for a period of two years from
the date of shipment. If any such product proves defective during the applicable warranty period, Newport, at its option,
either will repair the defective product with charge for parts and labor or will provide a replacement in exchange for the
defective product.
In order to obtain service under this warranty, the customer must notify Newport of the defect before the expiration of the
warranty period and make suitable arrangements for the performance of service. In all cases the customer will be
responsible for packaging and shipping the defective product back to the service center specified by Newport, with shipping
charges prepaid. Newport shall pay for the return of the product to the customer if the shipment is within the continental
United States, otherwise the customer shall be responsible for all shipping charges, insurance, duties and taxes, if the
product is returned to any other location.
This warranty shall not apply to any defect, failure or damage caused by improper use or failure to observe proper operating
procedures per the product specification or operators manual or improper or inadequate maintenance and care. Newport
shall not be obligated to furnish service under this warranty 1) to repair damage resulting from attempts by personnel other
than Newport's representatives to repair or service the product; 2) to repair damage resulting from improper use or
connection to incompatible equipment; 3) to repair damage resulting from operation outside of the operating or
environmental specifications of the product.
NEWPORT'S LIABILITY FOR THE MERCHANTABILITY AND USE OF THE PRODUCT IS EXPRESSLY LIMITED
TO ITS WARRANTY SET OUT ABOVE. THIS DISCLAIMER AND LIMITED WARRANTY IS EXPRESSLY IN LIEU
OF ANY AND ALL REPRESENTATIONS AND WARRANTIES EXPRESS OR IMPLIED, INCLUDING BUT NOT
LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR OF FITNESS FOR PARTICULAR
PURPOSE, WHETHER ARISING FROM STATUTE, COMMON LAW, CUSTOM OR OTHERWISE. THE REMEDY
SET FORTH IN THIS DISCLAIMER AND LIMITED WARRANTY SHALL BE THE EXCLUSIVE REMEDIES
AVAILABLE TO ANY PERSON. NEWPORT SHALL NOT BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF THIS PRODUCT OR CAUSED
BY THE DEFECT, FAILURE OR MALFUNCTION OF THIS PRODUCT, NOR ANY OTHER LOSSES OR INJURIES,
WHETHER A CLAIM FOR SUCH DAMAGES, LOSSES OR INJURIES IS BASED UPON WARRANTY, CONTRACT,
NEGLIGENCE, OR OTHERWISE. BY ACCEPTING DELIVERY OF THIS PRODUCT, THE PURCHASER
EXPRESSLY WAIVES ALL OTHER SUCH POSSIBLE WARRANTIES, LIABILITIES AND REMEDIES. NEWPORT
AND PURCHASER EXPRESSLY AGREE THAT THE SALE HEREUNDER IS FOR COMMERCIAL OR
INDUSTRIAL USE ONLY AND NOT FOR CONSUMER USES AS DEFINED BY THE MAGNUSOM-MOSS
WARRANTY ACT OR SIMILAR STATE CONSUMER WARRANTY STATUTE.
©2000 Newport Corporation
San Luis Obispo, California, USA
Part No. 8800070800
IN-02002
Printed 17-Mar-00
Rev. A
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i
Table of Contents
1. General Information _____________________________________________________ 1
1.1 Introduction __________________________________________________________________ 1
1.2 Model 708 Laser Diode Mount ___________________________________________________ 1
1.3 Safety Terms__________________________________________________________________ 2
1.4 General Warnings and Cautions _________________________________________________ 2
1.5 Model 708 Laser Diode Mount Specifications_______________________________________ 3
2. Butterfly Telecom Laser Diode Mount Use____________________________________ 5
2.1 Introduction __________________________________________________________________ 5
2.2 Installation ___________________________________________________________________ 5
2.2.1 Rack Mounting _____________________________________________________________________5
2.2.2 Power Up Sequence _________________________________________________________________5
2.3 Front Panel Familiarization _____________________________________________________ 6
2.4 Rear Panel Familiarization______________________________________________________ 6
2.5 Laser Diode Protection Requirements_____________________________________________ 7
2.6 "Butterfly" Style Laser Diode Device Mounting ____________________________________ 7
2.7 "Butterfly" Style Laser Diode Device Mounting Base Plate Height Adjustment _________ 10
2.8 8-Channel Butterfly Telecom Laser Diode Mount Connections _______________________ 11
2.8.1 Rear Panel Laser Diode Connector_____________________________________________________11
2.8.2 Configuration Board________________________________________________________________11
2.8.2.1 Configuration Board Identification___________________________________________________12
2.8.2.2 Configuration Board Layout________________________________________________________12
2.9 Fiber Optic Connector Types ___________________________________________________ 12
3. Maintenance___________________________________________________________ 13
3.1 Introduction _________________________________________________________________ 13
3.2 General Cleaning _____________________________________________________________ 13
3.2.1 Cleaning Instrument Surfaces _________________________________________________________13
3.2.2 Fiber Optic Connector Cleaning and End Preparation ______________________________________13
3.2.2.1 Connector End Face Preparation ____________________________________________________14
3.2.2.2 Cleaning Fiber Optic Connectors ____________________________________________________15
4. Factory Service_________________________________________________________ 17
4.1 Introduction _________________________________________________________________ 17
4.2 Obtaining Service_____________________________________________________________ 17
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Table of Figures
Figure 1 – Model 708 8-Channel Butterfly Telecom Laser Diode Mount __________________________________1
Figure 2 – Model 708 8-Channel Butterfly Telecom Laser Diode Mount Front Panel ________________________6
Figure 3 – Model 708 Laser Diode Mount Rear Panel ________________________________________________6
Figure 4 – Butterfly Laser Diode Mounting_________________________________________________________8
Figure 5 – Laser Diode Package Pin Clamps Closed _________________________________________________9
Figure 6 – Mounted Butterfly Packages and Fiber Optics______________________________________________9
Figure 7 – Model 708 Side Panel - Base Plate Mounting Screws _______________________________________10
Figure 8 – Fiber Optic Connectors ______________________________________________________________13
Table of Tables
Table 1 – Rear Panel Laser Diode Connection Pin Assignments________________________________________11
Table 2 – Configuration Board Identification ______________________________________________________12
Table 3 – Configuration Board Pin Assignments____________________________________________________12
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1
CHAPTER 1
1. General Information
1.1 Introduction
This manual describes the features and specifications of the Model 708 8-Channel
Butterfly Telecom Laser Diode Mount.
Figure 1 – Model 708 8-Channel Butterfly Telecom Laser Diode Mount
1.2 Model 708 Laser Diode Mount
The Model 708 8-Channel Telecom Laser Diode Mount is designed to hold up to
eight (8) butterfly type telecommunications laser diodes. The mount includes rack-
mount ears and can be easily installed into a standard instrumentation rack. Eight
fiber optic bulkhead connectors are mounted onto the front panel with choices
including FC/PC, FC/APC, SC/PC, SC/APC, or ST fiber connectors. The Model
708 mount offers an easy-to-use platform that is compatible with all of Newport's
benchtop laser diode instrumentation and with Newport's test and measurement and
burn-in rack type systems.
Features of the Model 708 mounts include:
¾Cost and space effective method for holding up to 8 laser diode packages
¾Efficient heat transfer – resulting in stable temperature control
¾Rack mountable in a single rack space (1.75-in.)
¾Reconfigurable design supports numerous butterfly package styles – having
various dimensions and pin-out configurations
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2 Chapter 1 Introduction
1.3 Safety Terms
The following safety terms are used in this manual:
The WARNING heading in this manual explains dangers that could result in
personal injury or death.
The CAUTION heading in this manual explains hazards that could damage the
instrument.
The NOTES heading provides information to the user that may be beneficial when
using this instrument.
1.4 General Warnings and Cautions
The following general warnings and cautions are applicable to this instrument:
CAUTION
Although ESD protection is designed into the Model 708, operation
in a static-free work area is required.
CAUTION
Do NOT plug-in or unplug a laser diode fixture with
the laser driver or TE driver connected to the mount.
CAUTION
There are no serviceable parts inside the Model 708. Work
performed by persons not authorized by Newport Corporation may
void the warranty. For instructions on obtaining warranty repair or
service please refer to Chapter 4 of this manual.
WARNING
Any use of the Model 708 not specified by Newport Corporation, or
failure to comply with precautions or specific warnings elsewhere in
this manual violates safety standards of design, manufacture, and
intended use of this equipment. Violation of safety standards and
misuse of equipment may cause damage or injury.
WARNING
Disconnect AC power from the controller before cleaning.
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Chapter 1 Introduction 3
1.5 Model 708 Laser Diode Mount Specifications
Model 708 Specifications
Laser Diode Package Style Supported 14-pin Butterfly Package
Laser Housing Mounting Plate 8 Butterfly flatpack sockets
Laser Housing Connectors
Electrical
Fiber Optic
15-pin male D-sub, LDD and TEC control (Qty. 8)
FC/PC, FC/APC, SC/PC, SC/APC, or ST
bulkhead
General
Size (H x W x D)
Weight
1.75 x 19 x 12.5 inches (43 x 483 x 318
millimeters)
9 pounds (4.1 kilograms)
NOTE:In accordance with ongoing efforts to continuously improve our products,
Newport Corporation reserves the right to modify product specifications
without notice and without liability for such changes.
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5
CHAPTER 2
2. Butterfly Telecom Laser Diode Mount Use
2.1 Introduction
The Model 708 8-Channel Butterfly Telecom Laser Diode Mount is designed for use
with Newport Corporation controller and rack systems. The following chapter
provides information for safely and effectively setting up and using the Model 708
Butterfly Package mount.
NOTE:Refer to the controller or other component's User's Manual for additional
information.
2.2 Installation
The Model 708 should be handled with care. Read the CAUTION statements below
before installing the module in the rack and connecting the module to the controller.
2.2.1 Rack Mounting
The Model 708 was designed to be rack mounted. Using the supplied hardware,
mount the Model 708 Laser Diode Mount in a single slot in the rack with four (4)
Phillips head screws.
CAUTION
Although ESD protection is designed into the Model 708, operation
in a static-free work area is required.
CAUTION
Do NOT plug-in or unplug a laser diode fixture with
the laser driver or TE driver connected to the mount.
Ensure that the area in the back of the unit is unobstructed to allow access to the rear
of the unit.
2.2.2 Power Up Sequence
Please refer to the Laser Diode Driver Controller User's Manual for additional set up
and power up information.
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6 Chapter 2 Butterfly Telecom Laser Diode Mount Use
2.3 Front Panel Familiarization
Described below is the Model 708 Laser Diode Mount front panel as shown in
Figure 2 – Model 708 8-Channel Butterfly Telecom Laser Diode Mount Front
Panel below.
Figure 2 – Model 708 8-Channel Butterfly Telecom Laser Diode Mount Front Panel
1. Rack Mounting Screw Holes – The outermost corner holes in the front panel
allow the Model 708 Mount to be installed in a rack system. Use the supplied
screws to mount the unit in the rack.
2. Fiber Optic Bulkhead Connectors (numbered 1 through 8) – The fiber optic
bulkhead connectors (FC/PC, FC/APC, SC/PC, SC/APC, or ST) enable the laser
source to be connected to the mounted laser diode device inside the unit, eight in
total. See Section 3.2.2 Fiber Optic Connector Cleaning and End
Preparation for descriptions of the available connector choices.
2.4 Rear Panel Familiarization
Described below is the rear panel as shown in Figure 3 – Model 708 Laser Diode
Mount Rear Panel.
Figure 3 – Model 708 Laser Diode Mount Rear Panel
1. Laser Diode Communications Cable Connector (8 through 1) – The 15-pin
laser diode communications connector provides an accessible interface for the
laser diode communications cable. See Section 2.8.1 Rear Panel Laser Diode
Connector for connector pin assignments.
2. Ventilation Holes – The rounded slots in the rear panel allow air to flow in and
out of the unit for proper cooling of the devices inside. Ensure that there is a two
to four inch minimum free space behind the rear panel to effectively move air
through the unit.
1 2
1 2
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Chapter 2 Butterfly Telecom Laser Diode Mount Use 7
2.5 Laser Diode Protection Requirements
Laser diodes are extremely sensitive to electrostatic discharge and current spikes
(transients). Damage can result in reduced output power, shift in threshold current,
changes in beam divergence, and ultimately failure to lase (LED-like output only).
Newport precision current sources and controllers offer the most advanced laser
protection features available, including power line filters, clamping current limits,
and slow-start-up circuits.
However, no instrument can protect against all conditions, especially ESD at the
laser. In order to optimize immunity from radiated or conducted electromagnetic
energy, e.g. static discharge, the following guidelines for the laser diode must be
adhered to:
¾ESD is the primary cause of premature laser failure. As a minimum, use anti-
static wrist straps (grounded with 1 MΩresistor), anti-static floor coverings,
grounded soldering irons, and grounded work areas. Ionized air blowers are also
recommended.
¾Laser diode leads should be shorted whenever the laser is transported or stored.
¾Select a driver module with the lowest possible current rating that still exceeds
the laser's maximum operating current.
¾If industrial loads are switched in or near your laboratory, use isolation
transformers and/or surge suppresser power strip with your laser current source.
¾Isolate your laser current driver with a surge suppresser when using a common
line with laboratory power supplies, soldering irons, or other electronic
instruments. Avoid using such devices on the same surge suppresser as your
laser source.
¾Make sure the all cables to the laser diode are securely fastened. Avoid
"bundling" current source cables with other cables in your laboratory,
¾Set current and voltage limits to appropriate levels, following the laser
manufacturer's recommendations (or to just above the expected operating
current). Suggestions include setting the compliance voltage no more than 10%
above Vf, and setting the current limit at or below the maximum operating
current of the laser diode.
¾Avoid ground loops. Do not ground the LDD cable shield to the laser diode
body.
2.6 "Butterfly" Style Laser Diode Device Mounting
The Model 708 provides a 14-pin swing-latch flatpack rest socket and mounting base
plate for 0.100-in. centers "butterfly" style laser diode packages. The housing is
milled from solid aluminum bar stock, tumble burnished, and finished black
anodized. Each laser diode package is mounted to the base plate using four screws
and the laser diode leads (pins) are clamped to ensure secure and continuous contact
during testing. Each of the eight testing positions is labeled with the corresponding
number for that device (from 1 through 8). Once the laser diodes are mounted
according to the procedure below, testing on the laser diodes can begin.
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8 Chapter 2 Butterfly Telecom Laser Diode Mount Use
Mount the laser diode devices according to the following procedure:
1. Using a cross-slotted screwdriver, remove the six (6) screws from the Model 708
top case cover.
2. Starting with position 1, open the laser diode pin clamps for the mount.
3. Using a 5/64-in. hex wrench, remove the four laser diode package mounting
screws from the base plate.
4. Ensure that the height of the base plate is appropriate for the butterfly package
pins to make contact with the mount leads by placing the laser diode on the base
plate.
If necessary, change the mounting height for the laser diode base plates. Refer to
Section 2.7 "Butterfly" Style Laser Diode Device Mounting Base plate
Height Adjustment for additional information.
5. Place the butterfly style laser diode on the base plate so that the fiber ends are
routed toward the inside of the Model 708.
6. Using a 5/64-in. hex wrench, insert and tighten the four (4) 2-56 x 1/4-in. socket
head cap screws.
Figure 4 – Butterfly Laser Diode Mounting
2-56 x 1/4-in. Socket
Head Cap Screw
(1 of 4)
"Butterfly" Style
Laser Diode
Package
Laser Diode
Mounting Base plate
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Chapter 2 Butterfly Telecom Laser Diode Mount Use 9
7. Close the laser diode pin clamps on the laser diode device until the clamps lock.
The clamps should lock firmly over the diode pins.
Figure 5 – Laser Diode Package Pin Clamps Closed
8. Repeat Steps 2 through 7 for each of the eight (8) devices.
9. Neatly gather and wind all optical fibers in a coil in the center of the unit as
shown in Figure 7 below.
Figure 6 – Mounted Butterfly Packages and Fiber Optics
10. Check the connection for all eight (8) laser diode devices.
11. Replace the unit cover plate.
12. Using a cross-slotted screwdriver, tighten the six (6) cover screws.
13. Insert the Model 708 in the rack and ensure that all communications cables are
connected for each device.
Mounted Butterfly
Style Laser Diode
Package
Closed Pin Clamps
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10 Chapter 2 Butterfly Telecom Laser Diode Mount Use
2.7 "Butterfly" Style Laser Diode Device Mounting Base Plate Height
Adjustment
The Model 708 allows the user to adjust the height of the laser diode device
mounting plate in the fixture to accommodate different height and style butterfly
laser diode packages.
Adjust the height of the laser diode mounting base plate according to the following
procedure:
1. Using a 9/64-in. hex wrench, loosen and remove the five (5) base plate mounting
8-32 socket head cap screws from the side of the Model 708.
Figure 7 – Model 708 Side Panel - Base Plate Mounting Screws
2. Move the base plate to the desired mounting height so that the mounting holes of
the base plate align with the holes in the side of the Model 708.
NOTE:The top set of mounting holes are not used.
3. Using a 9/64-in. hex wrench, insert and tighten each of the five (5) socket head
cap mounting screws.
4. Ensure that the height of the base plate is appropriate for the butterfly package
pins to make contact with the mount leads by placing the laser diode on the base
plate.
5. Return to
Section 2.6 "Butterfly" Style Laser Diode Device Mounting to
mount the laser diode devices in the Model 708.
3 Mounting Positions
Rear of
Unit
Mounting Screw
(1 of 5 in center position)
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Chapter 2 Butterfly Telecom Laser Diode Mount Use 11
2.8 8-Channel Butterfly Telecom Laser Diode Mount Connections
The Model 708 uses standard style connectors for the communication and interlock
connections. The pin assignments for the connectors are provided below where
appropriate. The front panel fiber optic bulkhead connectors are available in five
different styles. Each style is described in Section 3.2.2 Fiber Optic Connector
Cleaning and End Preparation below.
2.8.1 Rear Panel Laser Diode Connector
The 15-pin D-sub connectors are for the laser diode communications cables. The pin
assignments for each of the eight rear connectors shown in Figure 3 – Model 708
Laser Diode Mount Rear Panel are identical and are listed in Table 1 – Rear
Panel Laser Diode Connection Pin Assignments. If necessary, contact your
Newport Corporation representative for additional information and assistance.
Pin Description
1 TE+
2 TE-
3 THERM+
4 THERM-
5 PDA
6 PDC
7 LDA
8 LDC
9 TE+
10 TE-
11 No Connect
12 No Connect
13 No Connect
14 LDA
15 LDC
Table 1 – Rear Panel Laser Diode Connection Pin Assignments
2.8.2 Configuration Board
The "scramble" configuration boards available for the Model 708 laser diodes allow
the user to change the configuration for the communications connector. Two
different configuration boards are available through Newport Corporation. The pin
assignments for each configuration board are listed in Table 3 – Configuration
Board Pin Assignments. If necessary, contact your Newport Corporation
representative for additional information and assistance.
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12 Chapter 2 Butterfly Telecom Laser Diode Mount Use
2.8.2.1 Configuration Board Identification
Table 2 – Configuration Board Identification provides information that can be
used to order or identify a configuration board for the Model 708 Laser Diode
Mount. The Dash Number is used for ordering purposes. The Model Number is
used to identify the board layout.
Dash Number Model Number
-01 708-CONF-1
-02 708-CONF-2
Table 2 – Configuration Board Identification
2.8.2.2 Configuration Board Layout
Pin 708-CONF-1
Description 708-CONF-2
Description
1 TEC Thermistor
2 Thermistor Thermistor
3 Monitor Anode Laser Cathode
4 Monitor Cathode Monitor Anode
5 Thermistor Monitor Cathode
6 No Connect TEC+
7 No Connect TEC-
8 No Connect No Connect
9 No Connect No Connect
10 No Connect No Connect
11 Laser Cathode Laser Anode
12 No Connect No Connect
13 No Connect No Connect
14 TEC- No Connect
Table 3 – Configuration Board Pin Assignments
2.9 Fiber Optic Connector Types
The Model 708 accepts a variety of different fiber optic connector types. When the
Model 708 is ordered, part of the model number that is specified contains the code
for the connector type. It is important that the proper connector type is specified to
ensure that all components are compatible. Usual connector types available for the
Model 708 include FC/PC, FC/APC, SC/PC, SC/APC, and ST/PC. See Section
3.2.2 Fiber Optic Connector Cleaning and End Preparation for additional
connector information.
NOTE:Clean connectors in good condition are essential for optimum fiber optic
performance and accurate measurements. Before making any fiber optic
connections, refer to Section 3.2.2.2 Cleaning Fiber Optic Connectors for
details.
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13
CHAPTER 3
3. Maintenance
3.1 Introduction
Module specific calibration can be found in the module's manual. No calibration is
required on the mainframe. Do not attempt to remove the cover of the instrument!
3.2 General Cleaning
The Model 708 is designed for easy and reliable usage. Regular cleaning of the
instrument and connectors will help to maintain the appearance and trouble-free
operation of the Model 708.
3.2.1 Cleaning Instrument Surfaces
Use a mild soap solution on a damp but not wet lint-free cloth to wipe off dirty
surfaces on the outside of the instrument.
WARNING
Disconnect AC power before cleaning.
3.2.2 Fiber Optic Connector Cleaning and End Preparation
A variety of different connectors can be used with the Model 708 and some of its
components. Four connector types are shown and described below. The FC/APC
connectors are differentiated from the FC/PC connectors with a green cap. But also,
there is a small milled out dimple above the key slot of the FC/PC connector. This
way the FC/APC connectors can be identified when the green caps are not in place.
Note that not all of the connector types described below are used with the Model
708.
Figure 8 – Fiber Optic Connectors
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