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680 Series Video Distribution Amplifiers Installation and Operation Manual

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Chapter 3: VDA-683 Differential Input Video Distribution Amplifier Modules

Operation

Two potentiometers are located at the front-edge of the module: GAIN and
RESPONSE.
•

A multi-turn GAIN potentiometer provides adjustment of over a range of –3
to +3dB. The gain is increased when this potentiometer is adjusted
clockwise.

•

A single-turn potentiometer allows fine adjustment of the high-frequency
RESPONSE. It has been factory-set/calibrated; readjusting is not
recommended without precise test equipment.

Figure 3-3.

Gain and Frequency Response Adjustments

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Summary of Contents for FR-683

Page 1: ...Delivering the Moment Installation and Operation Manual 680 Series Video Distribution Amplifiers Edition N 680MAN ...

Page 2: ...nfoCaster Player Nexio InfoCaster Traffic Nexio InstantOnline Nexio mCAPTURE Nexio News Force Nexio NXIQ Nexio Playlist Nexio Remote Nexio RTX Net Nexio TitleMotion Nexio TitleOne Nexio Velocity ESX Nexio Velocity PRX Nexio Velocity XNG Nexio Volt OPTO Panacea Platinum Playlist Predator II GRF Predator II GX Punctuate Remote RTX Net QuiC Q SEE SD STAR Selenio Selenio 6800 SelenioNext Selenio X50 S...

Page 3: ...680 Series Video Distribution Amplifiers Installation and Operation Manual Edition N July 2007 ...

Page 4: ......

Page 5: ... Video DA Mounting Frame 3 FR 684AV Audio Video DA Mounting Frame 4 Frame Cooling 4 Power Consumption 5 PS 684 Power Supply 6 Chapter 2 UDA 683 Utility Video Distribution Amplifier Modules Overview 7 Functional Block Diagram 8 Installation 8 Configuration 9 Operation 9 Chapter 3 VDA 683 Differential Input Video Distribution Amplifier Modules Overview 11 Functional Block Diagram 12 Installation 12 ...

Page 6: ...tion 25 Chapter 7 VEH 683 Wideband Video Distribution Amplifier Modules Overview 27 Installation 28 Configuration 28 Gain Adjustment 28 Cable Equalization 28 Clamping Mode 28 Reset the Clamping Pulse 28 Chapter 8 Specifications Frame Specifications 32 FR 683 Mounting Frame 32 FR 684 FR 684AV Mounting Frames 32 Module Specifications 33 UDA 683 Utility Video Distribution Amplifier Modules 33 VDA 683...

Page 7: ...ct Damage Precautions 46 EMC and Safety Standards 48 EMC Standards 48 Additional EMC Information 49 Safety Standards 50 Appendix B Installing the 684PS 48 Branch Circuit Schematic 52 Description 52 Suggested Protection Devices 52 Maintaining the 684PS 48 53 Power Supply Replacement Fuse Information 53 Connections and Specifications 53 Power Supply Connections 53 Specifications 53 Appendix C Univer...

Page 8: ...vi 680 Series Video Distribution Amplifiers Installation and Operation Manual Contents ...

Page 9: ...ration and reference Revision History Table P 1 Revision History of Manual Edition Date Comments Edition A B 1996 Initial release Edition C January 1997 Added VEA 683 and updated schematics Edition D April 1997 Added VEA 683 and VPD 684 Updated schematics Added CE and UL warnings Added revision history table Edition E September 1997 Added VPD 683DEQ Edition F April 1998 Revised and updated frame a...

Page 10: ... for VEH 683 Removed obsolete products Corrected VDA 683 VEA 683 and VPD 683 sections Edition K August 2002 Removed SVD 680 Moved all product specifications into one separate chapter Edition L October 2004 Updated UDA 683 differential gain and differential phase specifications Added universal power supply installation and replacement information Edition M April 2006 Removed information on obsolete...

Page 11: ...ist boxes combo boxes menus submenus windows lists and selection names Italics Indicates email addresses the names of books or publications and the first instances of new terms and specialized words that need emphasis CAPS Indicates a specific key on the keyboard such as ENTER TAB CTRL ALT or DELETE Code Indicates variables or command line entries such as a DOS entry or something you type into a f...

Page 12: ...eed to return a product for servicing Returning a Product In the unlikely event that your product fails to operate properly please contact Customer Service to obtain a Return Authorization RA number then send the unit back for servicing Keep at least one set of original packaging in the event that a product needs to be returned for service If the original package is not available you can supply yo...

Page 13: ... landfill sites or otherwise contaminate the environment during end of life recycling The Directive which took effect on July 1 2006 refers to the following hazardous substances Lead Pb Mercury Hg Cadmium Cd Hexavalent Chromium Cr V1 Polybrominated Biphenyls PBB Polybrominated Diphenyl Ethers PBDE According to this EU Directive all products sold in the European Union will be fully RoHS compliant a...

Page 14: ...005 producers or users are required to recycle electrical and electronic equipment at end of its useful life and may not dispose of the equipment in landfills or by using other unapproved methods Some EU member states may have different deadlines In accordance with this EU Directive companies selling electric or electronic devices in the EU will affix labels indicating that such products must be p...

Page 15: ...ix A Any user serviceable components such as fuses or batteries are only replaceable by those components listed in the manual IMPORTANT Only qualified personnel should perform service procedures Safety Terms and Symbols in this Manual WARNING Statements identifying conditions or practices that may result in personal injury or loss of life High voltage is present CAUTION Statements identifying cond...

Page 16: ...xiv 680 Series Video Distribution Amplifiers Installation and Operation Manual Preface ...

Page 17: ... fully wired mounting frame options that facilitate system design and accommodate all of our distribution amplifiers The FR 683 video DA mounting frame and the FR 683AV audio video DA mounting frame require one unit of rack space The FR 683 and FR 683AV contain one standard 684PS power supply The FR 683 frame can house any mix of up to four 8 output 680 series distribution amplifiers The FR 684 Vi...

Page 18: ... requires 1 unit of rack space 1 in 44 mm high 19 in 483 mm wide 12 in 317 mm deep as shown in Figure 1 1 The FR 683 accepts up to four 680 series video distribution amplifiers with looping inputs and eight outputs This frame is equipped with one 684PS power supply that requires either 90 135 VAC or 190 265 VAC input voltages which is switchable on 50 60 Hz frequency rated at 35 VA maximum Please ...

Page 19: ...looping inputs and eight outputs This frame is equipped with a 684PS power supply that requires either 90 135 VAC or 190 265 VAC input voltages which is switchable on 50 60 Hz frequency rated at 35 VA max Please refer to PS 684 Power Supply on page 6 for more information There is an inter frame DC power connector which allows the sharing of power supply redundancy between frames A single power sup...

Page 20: ...io distribution amplifiers This frame is equipped with a switchable 684PS power supply that requires either 90 135 VAC or 190 265 VAC input voltages which is switchable on 50 60 Hz frequency rated at 35 VA Max Please refer to PS 684 Power Supply on page 6 for more information Frame Cooling The equipment is designed to designed to operate in an ambient temperature range of 32 F to 122 F 0 C to 50 C...

Page 21: ... modules Table 1 1 lists the nominal power consumption for each frame Table 1 2 lists the nominal power consumption for each module To prevent electric shock do not use the polarized plug with an extension cord receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure Table 1 1 Nominal Power Consumption for Mounting Frames Frame Nominal Power Consumption FR 683 1...

Page 22: ...esign consisting of an input Buck converter feeding a high efficiency push pull output stage Overall efficiency exceeds 80 individual component temperature rise is minimized by operating both converters at high voltage and low current as well as using Schottky rectifier diodes on the output stage The power supply is designed to work over the two standard input voltage ranges The power supply s ope...

Page 23: ...ignals with sync or without sync and subcarrier signal can be distributed with UDA683 in FR 683 and or FR 684 series video distribution amplifier frames The UDA 683 provides eight outputs and delivers outstanding output density with unmatched low cost per output The 100MHz bandwidth low distortion excellent frequency response and wide gain range make the UDA 683 suitable for general purpose distri...

Page 24: ...gram Figure 2 2 UDA 683 Functional Block Diagram Installation UDA 683 utility video distribution amplifier modules can be installed in these frames FR 684 10 video DA modules mounting frame FR 684AV 5 video and 5 audio DA modules mounting frame There is no need to terminate unused outputs but a perfect response can be obtained if unused outputs are terminated ...

Page 25: ...peration Two potentiometers are located at the front edge of the module GAIN and RESPONSE The multi turn GAIN potentiometer provides adjustment of over a range of 3 to 6 dB The gain is increased when this pot is adjusted clockwise The single turn RESPONSE potentiometer allows fine adjustment of the frequency response It has been factory set calibrated readjusting is not recommended without precise...

Page 26: ...10 680 Series Video Distribution Amplifiers Installation and Operation Manual Chapter 2 UDA 683 Utility Video Distribution Amplifier Modules ...

Page 27: ...fficient general purpose analog video distribution amplifier This distribution amplifier features one differential input eight outputs gain adjusting with a range of 3dB to 3 dB and high frequency response adjustment on the front edge of the board Composite and component analog NTSC PAL SECAM signals with sync or without sync and subcarrier signal can be distributed with VDA 6830 in FR 683 and or ...

Page 28: ...683 Functional Block Diagram Installation VDA 683 differential input video distribution amplifier modules can be installed in these frames FR 683 4 video DA modules mounting frame FR 684 10 video DA modules mounting frame FR 684AV 5 video and 5 audio DA modules mounting frame There is no need to terminate unused outputs but a perfect response can be obtained if unused outputs are terminated ...

Page 29: ...e of the module GAIN and RESPONSE A multi turn GAIN potentiometer provides adjustment of over a range of 3 to 3dB The gain is increased when this potentiometer is adjusted clockwise A single turn potentiometer allows fine adjustment of the high frequency RESPONSE It has been factory set calibrated readjusting is not recommended without precise test equipment Figure 3 3 Gain and Frequency Response ...

Page 30: ...14 680 Series Video Distribution Amplifiers Installation and Operation Manual Chapter 3 VDA 683 Differential Input Video Distribution Amplifier Modules ...

Page 31: ...igh reliability equalizing analog video distribution amplifier This distribution amplifier features one differential input eight outputs 3dB gain adjust range response adjustment in the front edge of the board and cable equalization Composite and component analog NTSC PAL SECAM signals with sync or without sync and subcarrier signal can be distributed with VEA 683 in FR 683 and FR 684 series frame...

Page 32: ...modules are available according to cable type Table 4 1 VEA 683 Products and Their Equalization Cable Types Product Equalization Cable Type VEA 683 Equalizing video distribution amplifier for 984 ft 300 m Belden 8281 cable VEA 683 1 Equalizing video distribution amplifier for 656 ft 200 m Belden 8241 cable VEA 683 2 Equalizing video distribution amplifier for 820 ft 250 m Belden 1505A cable VEA 68...

Page 33: ...if unused outputs are terminated Operation Three potentiometers are located at the front edge of the module GAIN EQ and RESPONSE A multi turn GAIN potentiometer provides adjustment of over a range of 3 to 3dB The gain is increased when this potentiometer is adjusted clockwise Another multi turn EQ potentiometer is used to adjust cable equalization It is adjusted clockwise to obtain more equalizati...

Page 34: ...18 680 Series Video Distribution Amplifiers Installation and Operation Manual Chapter 4 VEA 683 Video Equalizing Distribution Amplifier Modules ...

Page 35: ...the composite NTSC and PAL video signal The VEA 684 is equipped with a continuously variable equalization for coaxial cable The VEA 684 also features one differential input eight outputs gain adjusting with a range of 3 0dB to 3 0 dB and high frequency response adjustment on the front edge of the board VEA 684 also can compensate various type cables using different EQ network submodules installed ...

Page 36: ...0 video DA modules mounting frame FR 684AV 5 video and 5 audio DA modules mounting frame There is no need to terminate unused outputs but a perfect response can be obtained if unused outputs are terminated Table 5 1 VEA 684 Products and Their Equalization Cable Types Product Equalization Cable Types VEA 684 Equalizing video distribution amplifier for 984 ft 300 m Belden 8281 cable VEA 684 1 Equali...

Page 37: ... shown in Figure 5 3 Clamp Mode The clamping mode can be set for No Clamp Hard Clamp or Soft Clamp on Jumper J3 These settings are shown in Figure 5 3 J3 J3 J3 SOFT HARD DC AC NO CLAMP J3 J3 J2 J2 Clamp Mode Input Coupling A B C D E F H J K L M N P R S VEA 684 VPD 683 D VPD 683 XEQ VPD 683 CLP VPD 683 DEQ RMV 1 2 3 4 P3 R38 1 2 3 4 P4 R36 CLAMP MODE FOR J1 INPUT COUPLING SETTING FOR J2 AND J3 AC 3...

Page 38: ...tment to the gain over a range of 3dB The gain is increased when this potentiometer is adjusted clockwise Another multi turn potentiometer EQ R6 allows for adjustment to the equalization It is adjusted clockwise to obtain more equalization A single turn potentiometer RESPONSE R21 allows for fine adjustment to the high frequency response It has been factory set calibrated readjusting is not recomme...

Page 39: ...en DC and AC coupling soft and hard clamping capability for composite NTSC and PAL video signals and a continuously variable equalization for various types of coaxial cables VPD 683 CLP modules also features gain adjustment over a range of 3 dB to 3 dB and high frequency response adjustment on the front card edge of the board The VPD 683 CLP functions as adjustable luminance and hard white clip Fi...

Page 40: ...D 683 CLP Functional Block Diagram Installation VPD 683 CLP programmable video distribution amplifiers may be installed in these frames FR 683 4 video DA modules mounting frame FR 684 10 video DA modules mounting frame FR 684AV 5 video and 5 audio DA modules mounting frame There is no need to terminate unused outputs but a perfect response can be obtained if unused outputs are terminated ...

Page 41: ...alization see Figure 6 4 on page 26 5 A single turn potentiometer R21 on the base module allows for fine adjustments to the high frequency response It has been factory set calibrated readjusting is not recommended without precise test equipment see Figure 6 4 on page 26 6 The Hard Clip level can be adjusted with the multi turn potentiometer R4 located on the VPD 683 CLP submodule see Figure 6 4 on...

Page 42: ...s Video Distribution Amplifiers Installation and Operation Manual Chapter 6 VPD 683 CLP Programmable Video Distribution Amplifier Modules Figure 6 4 VPD 683 CLP Gain Equalization and Frequency Response Adjustments ...

Page 43: ... Video Distribution Amplifier Modules Overview Figure 7 1 VEH 683 Wideband Video Distribution Amplifier Module The VEH 683 is a differential 8 output wide bandwidth 100 MHz video distribution amplifier It provides cable equalization up to 325 ft 100 m of Belden 8281 cable or equivalent and output clamping ...

Page 44: ...Its primary setup is Gain Unity Cable Equalization None Video Signal Standard NTSC Clamp mode AC The following adjustments are available Gain Adjustment Cable Equalization Clamping Mode and Resetting the Clamping Pulse Gain Adjustment The Gain can be adjusted by R4 with the range of 3 0 dB Cable Equalization The Cable Equalization can be adjusted by R5 with the cable length range from 0 to 328 ft ...

Page 45: ...ribution Amplifier Modules Figure 7 2 Waveform for Clamp Setting 2 Set jumper J1 on either soft clamp or hard clamp 3 Observe the waveform of the output signal on the screen of the oscilloscope and make sure that the blanking level of the output signal is within 25 mV see Figure 7 3 Figure 7 3 Waveform in Clamp Mode ...

Page 46: ...30 680 Series Video Distribution Amplifiers Installation and Operation Manual Chapter 7 VEH 683 Wideband Video Distribution Amplifier Modules ...

Page 47: ...on page 32 FR 684 FR 684AV Mechanical Specifications on page 32 Modules UDA 683 Utility Video Distribution Amplifier Modules on page 33 VDA 683 Differential Input Video Distribution Amplifier Modules on page 34 VEA 683 Video Equalizing Amplifier Modules on page 35 VEA 684 Video Equalizing Amplifier Modules on page 36 VPD 683 CLP Programmable Video Distribution Amplifiers on page 38 VEH 683 Wideban...

Page 48: ... 8 2 FR 683 FR 683AV Mechanical Specifications Item Specification Height 1 in 44 mm Width 19 in 483 mm Depth from mounting surface 12 in 317 mm Nominal weight with modules 12 7 lb 5 8 kg Table 8 3 FR 684 FR 684AV Electrical Specifications Item Specification Voltage 90 135 VAC 684PS 120V 190 265 VAC 684PS 240V Frequency 50 60 Hz Power 50 VA max fully loaded Table 8 4 FR 684 FR 684AV Mechanical Spec...

Page 49: ...tput Specifications Item Specification Number of outputs 8 Output impedance 75Ω Output return loss 45 dB to 5 MHz Table 8 7 UDA 683 Performance Specifications Item Specification Gain range 3 dB to 6 dB Frequency response 0 05 dB to 10 MHz 3 dB at 100 MHz typically Line tilt 0 20 DC coupling Field tilt 0 20 DC coupling Differential gain 10 90 APL 0 20 Differential phase 10 90 APL 0 20 Propagation d...

Page 50: ... Specifications Item Specification Number of outputs 8 Output impedance 75Ω Output return loss 45 dB to 20 MHz Output isolation 35 dB to 10 MHz Response variation 0 1 dB 1 to 8 loads at 10 MHz Table 8 12 VDA 683 Performance Specifications Item Specification Gain range 3 dB to 3 dB Frequency response 0 05 dB to 10 MHz 0 0 5 dB to 40 MHz 3 dB at 100 MHz typically Line rate window tilt 0 20 Field rat...

Page 51: ...de rejection ratio 65 dB to 10 kHz Table 8 16 VEA 683 Output Specifications Item Specification Number of outputs 8 Output impedance 75Ω Output return loss 45 dB to 5 MHz 40 dB to 10 MHz Phase match between outputs 0 2 at 3 58 MHz Output isolation 35 dB at 10 MHz Response variation 0 1 dB 1 to 8 loads at 10 MHz Table 8 17 VEA 683 Performance Specifications Item Specification Gain range 3 dB to 3 dB...

Page 52: ...nce 41 104 F 5 40 C Operating 32 122 F 0 50 C Table 8 20 VEA 683 Power Requirements Specifications Item Specification Power dissipation 2 W Table 8 21 VEA 684 Input Specifications Item Specification Video input level 1 Vp p nominal Maximum input level 2 5 Vp p centered at 0V Input impedance 75Ω bridging Coupling DC and AC jumper selectable Input return loss 40 dB to 20 MHz Common mode rejection ra...

Page 53: ...fications Item Specification Range 0 984 ft 0 300 m Belden 8281 cable 0 656 ft 0 200 m Belden 8241 cable 0 820 ft 0 250 m Belden 1505A cable 0 984 ft 0 300 m Belden 1694A cable 0 656 ft 0 200 m PSF 1 3 cable 0 820 ft 0 250 m Nokia 0 6 2 8 cable 0 820 ft 0 250 m VPM2000 cable Response 0 05 to 5 MHz 0 15 dB to 10 MHz Table 8 25 VEA 684 Clamp Specifications Item Specification Clamping accuracy 25 mV ...

Page 54: ...cifications Item Specification Number of outputs 8 Level 1Vp p nominal Output impedance 75Ω Output return loss 45 dB to 5 MHz 40 dB to 10 MHz Output isolation 35 dB to 10 MHz Response variation 0 1 dB 1 to 8 loads at 10 MHz Table 8 30 VPD 683 CLP Performance Specifications Item Specification Gain range 3 dB to 3 dB Line rate window tilt 0 25 Field rate window tilt 0 25 S N 70 dB measured by VM700A...

Page 55: ...ble 8 32 VPD 683 CLP Temperature Specifications Item Specification Performance 41 104 F 5 40 C Operating 32 122 F 0 50 C Table 8 33 VPD 683 CLP Power Requirements Specifications Item Specification Power dissipation 2 W Table 8 30 VPD 683 CLP Performance Specifications Item Specification Table 8 34 VEH 683 Input Specifications Item Specification Input type Differential Input impedance 75Ω bridging ...

Page 56: ...n Manual Chapter 8 Specifications Table 8 35 VEH 683 Output Specifications Item Specification Output number 8 Output impedance 75Ω Output return loss 45 dB 5 MHz 35 dB 20 MHz 25 dB 100 MHz Maximum output level 2 6 Vp p Output isolation 45 dB 5 MHz Output delay match 0 3 ...

Page 57: ...fication Gain 0 0 1 dB Gain adjust range 3 dB normal Frequency response 0 1 dB DC 20 MHz 0 5 dB 20 60 MHz 3 dB 100 MHz DG 0 15 DP 0 15 S N 75 dB 5 MHz 55 dB 100 MHz Tilt 0 2 DC offset 25 mV Clamp mode Selectable Soft clamp Hard clamp No clamp Clamp time Soft 7 8 lines Hard 2 3 lines Propagation delay 12 5 1 ns Cable equalization range 328 ft 100 m Belden 8281 ...

Page 58: ...42 680 Series Video Distribution Amplifiers Installation and Operation Manual Chapter 8 Specifications ...

Page 59: ... dangers warnings and cautions They alert installers and operators of possible dangers or important information contained in this manual Keep in mind though that warnings alone do not eliminate hazards nor are they a substitute for safe operating techniques and proper accident prevention measures Any user serviceable components such as fuses or batteries are only replaceable by those components li...

Page 60: ...s present CAUTION Statements identifying conditions or practices that can result in damage to the equipment or other property DANGER High voltage and indicates a personal injury hazard immediately accessible as one reads the marking WARNING Indicates a personal injury hazard not immediately accessible as one reads the marking CAUTION Indicates a hazard to property including the product or to pay a...

Page 61: ...t and Store Carefully Transport and store sensitive components in a static protected bag or container WARNING Potentially lethal voltages are present within the frame during normal operation The AC power cord must be disconnected from the frame before the top panel is removed In frames with multiple power supplies remove ALL power cords Power should not be applied to the frame while the top is ope...

Page 62: ...power is present CAUTION Disconnect power from the frame before removing or installing input output modules Removing or installing modules with power applied could cause serious damage to system components Use Proper Power Source Do not operate this product from a power source that supplies more than the specified voltage Use Proper Voltage Settings Before applying power ensure that the line selec...

Page 63: ...ISER UN FUSIBLE DE RECHANGE DE MÊME TYPE CAUTION DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE ATTENTION DÉBRANCHER AVANT DE REMPLACER LE FUSIBLE ACHTUNG VOR AUSWECHSELN DER SICHERUNG IST DAS GERÄT VOM NETZ ZU TRENNEN CAUTION Disconnect power from the frame before removing or installing input output modules Removing or installing modules with power applied could cause serious damage to system compon...

Page 64: ...tandard for Audio Video Audio Visual and Entertainment Lighting Control Apparatus for Professional Use Part 1 Emission Environment E4 EN55103 2 Electromagnetic Compatibility Product Family Standard for Audio Video Audio Visual and Entertainment Lighting Control Apparatus for Professional Use Part 2 Immunity Environment E4 EN61000 3 2 Limits for Harmonic Current Emissions Equipment Input Current Le...

Page 65: ... the interference standard entitled Digital apparatus ICES 003 of the Canadian Department of Communications Additional EMC Information This device is for professional use in a controlled EMC environment such as purpose built broadcast studios EMC regulations require that the radiation emitted from this unit does not exceed certain limits These limits are only met when the front panel is closed and...

Page 66: ...lectronic Apparatus Safety Requirements EN 60825 1 1999 IEC 60825 1 1993 Safety of Laser Products Part 1 Equipment Classification Requirements and User s Guide EN 60825 2 2000 IEC 60825 2 2000 Safety of Laser Products Part 2 Safety of Optical Fibre Communication Systems IEC 60825 1 2001 08 Edition 1 2 Safety of Laser Products Part 1 Equipment Classification Requirements and User s Guide UL 1419 Ma...

Page 67: ...nect device that is suitably approved and rated See Suggested Breaker Switch Type on page 52 5 Install in a restricted access area according to the NEC or the authority having jurisdiction Perform installation and exchange only if you are a trained technician who is familiar with these instructions and aware of the shock hazards of working with live equipment Install the 684PS 48 power supply acco...

Page 68: ...differs from other power supplies in that it depends on a facility s installed circuit breaker fuse to disconnect power to the frame Figure B 1 Typical Branch Circuit Drawing Suggested Protection Devices Suggested Breaker Switch Type Eaton Heinemann Series AM S part AM1S B2 A A 02J H A 52 NO 10 10 or equivalent Suggested Branch Circuit Fuse Type Buss part GMT 5 or equivalent ...

Page 69: ...94 2 5 A 250 V use Connections and Specifications Power Supply Connections Use the XLR connector at the back of the power supply or frame if the 684PS 48 is installed in a frame to make the following pin connections for the 684PS 48 Specifications For continued protection against fire replace only with the same type and rating of fuse Pin number Pin Connection 1 48 V 2 0 V 3 chassis Item Specifica...

Page 70: ...54 680 Series Video Distribution Amplifiers Installation and Operation Manual Appendix B Installing the 684PS 48 ...

Page 71: ...eplaces older power supplies that used an AC Input Voltage input selector switch A universal indicator has been added the silk screening on the front of the supply to distinguish between the old and new power supplies The new universal power supplies have a small Toggle On Off switch that replaces the push pull breaker switch The new supply is fitted with Or ring diodes for redundancy purposes so ...

Page 72: ... the frame Figure C 1 Removing the Old Power Supply 4 Insert the new power supply pushing it into its slot until it is flush against the frame 5 Install the safety screw back in its designated location 6 Attach the power cords to the new power supply for powering the unit Figure C 2 Installing the New Power Supply Note You can replace the power supply while the frame is installed in a rack but you...

Page 73: ...tions 32 FR 684 description 3 mounting requirements 3 specifications 32 FR 684AV description 4 mounting requirements 4 specifications 32 Frames cooling 4 descriptions FR 683 2 FR 684 3 FR 684AV 4 mounting requirements FR 683 2 FR 684 3 FR 684AV 4 power consumption 5 power supply 6 specifications FR 683 32 FR 684 32 FR 684AV 32 I R Injury precautions 45 Installation UDA 683 8 VDA 683 12 VEA 683 17 ...

Page 74: ...ribution amplifier See VPD 683 CLP S Z Safety precautions injury precautions 45 introduction xiii preventing electrostatic discharge 45 product damage precautions 46 safety terms and symbols in this manual xiii 44 safety terms and symbols on the product 44 Specifications frames FR 683 32 FR 684 32 FR 684AV 32 modules UDA 683 33 VDA 683 34 35 VEA 683 35 36 VEA 684 36 37 VEH6 83 39 VPD 683 CLP 38 39...

Page 75: ...d confidential Do not photocopy or distribute Video equalizing distribution amplifier See VEA 683 and VEA 684 Video equalizing distribution amplifier See VEA 683 and VEA 684 VPD 683 CLP block diagram 24 configuration 25 26 description 23 installation 24 specifications 38 39 Wideband video distribution amplifier See VEH 683 ...

Page 76: ...60 680 Series Video Distribution Amplifiers Installation and Operation Manual Index Preliminary Contents are proprietary and confidential Do not photocopy or distribute ...

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