Model 708 8-Channel Butterfly Telecom Laser Diode Mount
Contents
1. 2 4 Rear Panel Familiarization 2 5 Laser Diode Protection Requirements 2 6 Butterfly Style Laser Diode Device Mounting 2 7 Butterfly Style Laser Diode Device Mounting Base Plate Height Adjustment 2 8 S Channel Butterfly Telecom Laser Diode Mount Connections _ 2 8 1 Rear Panel Laser Diode Connector d N A a vun UN aM Y NN DOT m KN 2 8 2 Configuration Board 2 8 2 1 Configuration Board Identification 2 8 2 2 Configuration Board Layout 2 9 Fiber Optic Connector Types 3 Maintenance 3 1 Introduction 3 2 General Cleaning 3 2 1 Cleaning Instrument Surfaces 3 22 Fiber Optic Connector Cleaning and End Preparation 3 2 2 1 Connector End Face Preparation 3 2 2 2 Cleaning Fiber Optic Connectors 4 Factory Service 4 1 Introduction 4 2 Obtaining Service Table of Figures Figure 1 Model 708 8 Channel Butterfly Telecom Laser Diode Mount Figure 2 Model 708 8 Channel Butterfly Telecom Laser Diode Mount Front Panel Figure 3 Model 708 Laser Diode Mount Rear Panel Figure 4 Butterfly Laser Diode Mounting Figure 5 Laser Diode Package Pin Clamps Closed Figure 6 Mounted Butterfly Packages and Fiber Optics Figure 7 Model 708 Side Panel Base Plate Mounting Screws Figure 8 Fiber Optic Connectors Table of Tables Table 1 Rear Panel Laser Diode Connection Pin Assignments Table 2 Configuration Board Identification2. Table 3 Configuration Board Pin Assignments Uo QOO o0 00000 o 11 12 12 1 1 1 2 CHAPTER 1 General Information 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 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 Cost and space effective method for holding up to 8 laser diode packages Efficient heat transfer resulting in stable temperature control Rack mountable in a single rack space 1 75 in Reconfigurable design supports numerous butterfly package styles having various dimensions and pin out configurations VVVV Chapter 1 Introduction 1 3 1 4 Safety Terms The following safety terms are used in this manual The WARNING heading in this
3. is of great importance in high speed and analog fiber optic links utilizing narrow line width sources such as DFB lasers which are prone to mode hopping and fluctuations in their output if light is reflected back into them Flat Polish A flat polish of the connector surface will result in a back reflection of about 16 dB 4 PC Polish The Physical Contact PC polish results in a slightly curved connector surface forcing the fiber ends of mating connector pairs into physical contact with each other This eliminates the fiber to air interface thereby resulting in back reflections of 30 to 40 dB The PC polish is the most popular connector end face preparation used in most applications Chapter 3 Maintenance 15 3 2 2 2 SPC Polish In the Super PC SPC polish an extended polishing cycle enhances the surface quality of the connector resulting in back reflections of 40 to 55 dB This polish is used in high speed digital fiber optic transmission systems APC Polish The Angled PC APC polish adds an 8 degree angle to the connector end face While the fiber cores are still in contact with each other light will be reflected at an angle missing the other fiber s core area Back reflections of lt 60 dB can routinely be accomplished with this polish Fiber Cleaving Cleaving is the fastest way to achieve a mirror flat fiber end and takes only seconds The basic principle involves placing the fiber under tensio
4. 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 General Warnings and Cautions The following general warnings and cautions are applicable to this instrument Chapter 1 Introduction 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 15 pin male D sub LDD and TEC control Qty 8 Fiber Optic FC PC FC APC SC PC SC APC or ST bulkhead General 1 75 x 19 x 12 5 inches 43 x 483 x 318 Size H x W x D millimeters Weight 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 2 1 2 2 2 2 1 2 2 2 CHAPTER 2 Butterfly Telecom Laser Diode Mount Use 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
5. Model 708 8 Channel Butterfly Telecom Laser Diode Mount User s Manual Printed 17 Mar 00 Certificate No FM 27207 Newport Corporation Irvine California has been certified compliant with ISO 9002 by the British Standards Institution CN Newport Corporate Headquarters Newport Corporation 1791 Deere Avenue Irvine CA 92714 Telephone 949 863 3144 Facsimile 949 253 1800 Belgium Telephone 016 402927 Facsimile 016 402227 Canada Telephone 905 567 0390 Facsimile 905 567 0392 France Telephone 1 60 91 68 68 Facsimile 1 60 91 68 69 Germany Telephone 06151 36 21 0 Facsimile 06151 36 21 52 Italy Telephone 02 924 5518 Facsimile 02 923 2448 Japan Telephone 03 5379 0261 Facsimile 03 5379 0155 Netherlands Telephone 030 6592111 Facsimile 030 6570242 Switzerland Telephone 01 740 2283 Facsimile 01 740 2503 Taiwan R O C Telephone 2 2769 9796 Facsimile 2 2769 9638 United Kingdom Telephone 01635 521757 Facsimile 01635 521348 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 m
6. 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 Table of Contents 1 General Information 1 1 Introduction 1 2 Model 708 Laser Diode Mount 13 Safety Terms 14 General Warnings and Cautions ___ 15 Model 708 Laser Diode Mount Specifications 2 Butterfly Telecom Laser Diode Mount Use 2 1 Introduction 2 2 Installation 22 1 Rack Mounting 2 2 2 Power Up Sequence 2 3 Front Panel Familiarization ___
7. ate 5 Return to Section 2 6 Butterfly Style Laser Diode Device Mounting to mount the laser diode devices in the Model 708 Chapter 2 Butterfly Telecom Laser Diode Mount Use 11 2 8 2 8 1 2 8 2 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 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 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 configu
8. ector type Itis 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 3 1 3 2 3 2 1 3 2 2 CHAPTER 3 Maintenance 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 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 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 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 mil
9. ed on the outside of the shipping container Please fill out the service form located on the following page and have the information ready when contacting Newport Corporation Return the completed service form with the instrument Service Form Newport Corporation USA Office 949 863 3144 FAX 949 253 1800 Name RETURN AUTHORIZATION Company Please obtain prior to return of item Address Country Date P O Number Phone Number Item s being returned Model Serial Description Reason for return of goods please list any specific problems List all control settings and describe problem Attach additional sheets as necessary Show a block diagram of your measurement system including all instruments connected whether power is turned on or not Describe signal source If source is laser describe output mode peak power pulse width and repetition rate Where is measurement being performed factory controlled laboratory out of doors etc What power line voltage is used Variation Frequency Ambient Temperature Any additional information If the user has made special modifications please describe below
10. iode 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 Lob p TA Cp Cp Gp Gp Ep Zp e 8 7 6 5 4 3 2 1 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 Chapter 2 Butterfly Telecom Laser Diode Mount Use 7 2 5 2 6 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 protect
11. ion 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 gt ESD is the primary cause of premature laser failure As a minimum use anti static wrist straps grounded with 1 MQ resistor anti static floor coverings grounded soldering irons and grounded work areas Ionized air blowers are also recommended gt Laser diode leads should be shorted whenever the laser is transported or stored gt Select a driver module with the lowest possible current rating that still exceeds the laser s maximum operating current gt If industrial loads are switched in or near your laboratory use isolation transformers and or surge suppresser power strip with your laser current source gt Isolate 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 gt Make sure the all cables to the laser diode are securely fastened Avoid bundling current source cables with other cables in your laboratory gt Set current and voltage limits to appropriate levels following the laser ma
12. late 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 Place the butterfly style laser diode on the base plate so that the fiber ends are routed toward the inside of the Model 708 Using a 5 64 in hex wrench insert and tighten the four 4 2 56 x 1 4 in socket head cap screws 2 56 x 1 4 in Socket Head Cap Screw 1 of 4 Butterfly Style Laser Diode Package Laser Diode Mounting Base plate Figure 4 Butterfly Laser Diode Mounting Chapter 2 Butterfly Telecom Laser Diode Mount Use 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 Mounted Butterfly Style Laser Diode Package Closed Pin Clamps 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 scre
13. led 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 13 14 Chapter 3 Maintenance 3 2 2 1 SMA Due to its stainless steel structure and low precision threaded fiber locking mechanism this connector is used mainly in applications requiring the coupling of high power laser beams into large core multimode fibers The typical insertion loss of an SMA connector is greater than 1 dB These connectors are not typically used with the Model 708 ST The ST connector is used extensively both in the field and indoor fiber optic LAN applications Its high precision ceramic ferrule allows its use with both multimode and single mode fibers The bayonet style keyed coupling mechanism featuring push and turn locking of the connector prevents over tightening and damaging of the fiber end The insertion loss of the ST connector is less than 0 5 dB with typical values of 0 3 dB being routinely achieved FC The FC connector is rapidly becoming the connector of choice for single mode fibers and is mainly used in fiber optic instruments and SM fiber optic components and in high speed fiber optic communication links This high precision ceramic ferrule connector is equipped with an anti rotation key reducing fiber e
14. n scribing with a diamond or carbide blade perpendicular to the axis then pulling the fiber apart to produce a clean break Cleaning Fiber Optic Connectors Proper care of fiber optic connectors is important to maintain the performance and accuracy that are expected from the optical fiber itself Fiber optic connectors should be inspected and cleaned regularly according to the procedure below especially before making any connections If the connector is still not clean after the initial cleaning clean the connector again until the connector is sufficiently clean and performance is suitable Use the following procedure to inspect and clean the fiber optic connectors on the cable ends 1 Disconnect the laser and or TEC driver s from the Model 708 Laser Diode Mount 2 Disconnect the fiber optic connector from the front panel of the instrument 3 Apply pure isopropyl alcohol to a clean lint free cotton swab or lens paper NOTE If cotton swabs are used ensure that no cotton fibers are left on any surfaces after cleaning 4 Wipe around the ferrule and the outside of the connector avoiding the fiber tip 5 Apply pure isopropyl alcohol to a new clean lint free cotton swab or lens paper 6 Carefully swipe across the fiber optic tip NOTE Do not scrub the fiber optic tip with the first cleaning Particles on the tip may gouge the surface if the tip is scrubbed 16 Chapter 3 Maintenance 7 10 Using a new clean cotto
15. n swab or lens paper with pure isopropyl alcohol clean the fiber optic tip Using a clean dry cotton swab or lens paper immediately dry the wet fiber optic tip Using clean dry compressed air blow across the end face of the fiber optic tip at a distance of approximately 6 to 8 inches away NOTE Nitrogen gas or compressed air may also be used however care must be taken to not shake tilt or invert the container since this may release particulates from the container As soon as the fiber tip 1s dry attach the connector to the front panel of the instrument or cover the end of the connector for future use If the insertion loss performance is poorer than expected repeat the steps above to clean the connector again 4 1 4 2 CHAPTER 4 Factory Service Introduction This section contains information regarding calibration and obtaining factory service for the Model 708 8 Channel Butterfly Telecom Laser Diode Mount Obtaining Service To obtain information concerning factory service contact Newport Corporation or your nearest Newport representative Please have the following information available gt Instrument model number on front panel gt Instrument serial number on rear panel gt Description of the problem If the instrument is to be returned to Newport Corporation you will be given a Return Materials Authorization RMA number which you should reference in your shipping documents as well as clearly mark
16. nd face damage and rotational alignment sensitivity of the fiber The key is also used for repeatable alignment of fibers in the optimal minimal loss position Multimode versions of this connector are also available The typical insertion loss of the FC connector is around 0 3 dB Drilled out metallic FC connectors having insertion losses of gt 1 dB are being used with Newport s large core gt 140 um fibers SC The more recently introduced SC connector is becoming increasingly popular in single mode fiber optic telecom and analog CATV field deployed links The high precision ceramic ferrule construction is optimal for aligning single mode optical fibers The connectors outer square profile combined with its push pull coupling mechanism allow for greater connector packaging density in instruments and patch panels The keyed outer body prevents rotational sensitivity and fiber end face damage Multimode versions of this connector are also available The typical insertion loss of the SC connector is around 0 3 dB Connector End Face Preparation Once the optical fiber is terminated with a particular connector the connector end face preparation will determine what the connector return loss also known as back reflection will be The back reflection is the ratio between the light propagating through the connector in the forward direction and the light reflected back into the light source by the connector surface Minimizing back reflection
17. nufacturer s recommendations or to just above the expected operating current Suggestions include setting the compliance voltage no more than 10 above V and setting the current limit at or below the maximum operating current of the laser diode gt Avoid ground loops Do not ground the LDD cable shield to the laser diode body 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 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 Starting with position 1 open the laser diode pin clamps for the mount Using a 5 64 in hex wrench remove the four laser diode package mounting screws from the base plate Ensure that the height of the base p
18. or other component s User s Manual for additional information 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 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 Ensure that the area in the back of the unit is unobstructed to allow access to the rear of the unit Power Up Sequence Please refer to the Laser Diode Driver Controller User s Manual for additional set up and power up information 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 A O oe 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 d
19. ration 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 12 Chapter 2 Butterfly Telecom Laser Diode Mount Use 2 8 2 1 2 8 2 2 2 9 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 Configuration Board Layout 708 CONF 1 708 CONF 2 Pin Description 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 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 conn
20. ust 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
21. ws 13 Insert the Model 708 in the rack and ensure that all communications cables are connected for each device 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 3 660 Rear of d TE LET ETT Uni COS ego eoo Mounting Screw 3 Mounting Positions 1 of 5 in center position 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 pl
Download Pdf Manuals
Related Search