Optical analogue video receiver A112 model, User Manual
Contents
1. and it comes directly from the housing system The following photograph indicates the most important parts of this device amp Ris Stirs f 1 o Sa Ig ED ST Tm ie 1 Fastening screws 2 Video signal output connector 3 ON NV and PI indicator LEDs 4 Optical signal input connector INSTALLATION First switch off the housing system EQUITEL series P400 where it will be placed which is provided with power supply Always following the instructions given in P400 user s manuals insert the module in any of the slots available in the housing and fix it with the fastening screws 1 in the figure The fibre jumper will be introduced in the optical connector 4 in the figure after the protective cover of the connector is removed The protector must be kept to be replaced in case the optical connection is temporary removed Do not connect unless you have previously cleaned the single fibre cable connector with a soft paper dampened with alcohol Introduce the connector carefully in the optical sign input in order to avoid damages in the polished surface Then switch on the P400 housing and check that the ON indicator LED 3 in the figure turns on There has to be a compatible optical emitter already installed and in operation at the opposite end of the link and it has to transmit a signal which is appropriate for video signal measurements In case no video signal is detected the NV LED 32. takes place with the assistance of light focusing elements magnifying glasses microscopes etc In case these recommendations are not followed eyes would be exposed to a level of light radiation that would be higher than the maximum admissible level This could result in permanent and irreversible damages in eyes LASER RADIATION DONOT STARE INTOBEAM CR VIEW DIRECTLY WITH CPTICAL INSTRUMENTS CLASS 3A LASER PRODUCT The use of controls adjustments or procedures different from the ones specified here could cause a dangerous exposure to radiation Ed 5 0 DESCRIPTION Baseband video links have been designed for the transmission of soundless television image through optical fibre Optimum applications are those of CCTV security systems remote monitoring in industrial processes traffic control etc The use of fibre optic technology in this equipment allows its application to long distance transmission thanks to the low attenuation of the fibre It also allows transmission through hostile electromagnetic environment thanks to its immunity to this kind of interference EQUITEL A112 is an optical receiver for an analogue video signal employing as light detector a PIN photodiode It has been designed to be used with one of EQUITEL s compatible optical emitters The mechanical format of A112 is a 3U high and 5TE wide module to be inserted into a 19 3U high housing of EQUITEL series P400 The power supply is internal
3. Optical analogue video receiver A112 model User Manual INITIAL INSPECTION Please check that the contents of the consignment are correct and verify that no element has been damaged during the transport In case of mistaken or damaged material please state an immediate claim to the transport carrier and notify it immediately to the manufacturer or distributor either for a new remittance or for the repair or replacement of the damaged material SAFETY CONSIDERATIONS All the devices described in this manual have been designed to be properly performed by qualified technical personnel only Personnel skilled enough to foresee the possible consequences of inadequate handling must carry out the installation setting maintenance or repair of this equipment For a correct and safe use of the provided equipment and in order to achieve the best possible security conditions it is essential to follow not only general security procedures but also the special ones described in this manual Never switch on the systems in case there is the smallest suspicion of bad functioning For instance in case of detecting apparent damages which could be consequence of transport or storage etc Before any setting or maintenance operation disconnect the equipment from any power supply or optical emitter After electrical disconnection inside capacitors could remain loaded for one second Active power circuitry could appear when protecting lids or cove
4. in the figure turns on If the input optical power level is under the specified levels the PI LED 3 in the figure activates A coax cable ended with a BNC connector will be plugged to the video signal output connector 2 in the figure The equipment does not require any electrical fitting for its correct operation since it is provided with automatic gain control and delivers an output electrical level of 1Vpp OPERATION Once the equipment is installed it does not require any additional attention for its correct operation MAINTENANCE This equipment has been designed to require no maintenance periodical operations In order to prolong the life of the equipment the common caution measures in optical connection and disconnection must be observed The introduction of strange mechanical elements in the optical connector may result in irreparable damage in the optical components TECHNICAL CHARACTERISTICS OPTICAL PARAMETERS Optical receiver PIN Wavelength 850 nm CM version 1 310 nm D version 1 310 amp 1 550 nm A version Singlemode A version Multimode CM D versions lt 30 dBm A D versions lt 28 dBm CM version ELECTRICAL PARAMETERS Video system PAL NTSC SECAM Output voltage 1 Vpp 75 Q Output video level Automatically controlled Output impedance 75 Q note 2 Bandwidth 3 dB gt 5 5 MHz note 1 Differential gain lt 3 5 notes 1 2 Differential phase lt 3 5 notes 1 2 Signal to n
5. oise ratio gt 45 dB notes 1 2 and 3 POWER PARAMETERS Power requirements Internal of P4AOW Power consumption note 2 lt 2W MECHANICAL PARAMETERS Type of fibre Sensitivity note 1 Format Plug in module for 19 rack 3U high Dimensions 5 TE wide 160 mm deep without connectors FC PC A version ST CM D versions Video connector BNC ENVIRONMENTAL CONDITIONS Operating temperature range 10 C to 50 C Humidity range 0to95 without condensation INDICATORS AND ALARMS note 4 Optical connector Unit in operation Green ON No video output signal Red NV Low optical input power Red PI Note 1 Typical values as a production average Note 2 Actual values are given in the test sheet These values are measured according to the test procedure for this device Note 3 Value to the receiver sensitivity in all the operating range Note 4 LEDs on the front side The information included in this manual cannot be copied or reproduced in any way without the previous written authorisation of Equipos de Telecomunicaci n Optoelectr nicos S A Equipos de Telecomunicaci n Optoelectr nicos S A Pol gono de Malpica c F oeste G Quejido nave 74 50057 Zaragoza SPAIN Tel 34 976 570 353 E mail mail equitel es Fax 34 976 571 383 www equitel es Published by Equipos de Telecomunicaci n Optoelectr nicos S A Zaragoza July 2006
6. rings are taken away Likewise unplugged optical connectors must be immediately covered with the corresponding protecting caps In case the equipment needs to be checked while it is functioning remember that maintenance operations can only be carried out by qualified technical personnel who is aware of the risks of the operation both from the electrical and optical point of view The security classification of this product is Class III The modification of the electrical protection elements and the disconnection of the earth terminal may result in personal injury Before the equipment is switched on make sure that it has been properly grounded through the protective conductor of the a c power cable to a socket outlet provided with protective earth contact The earth circuit cover of the electrical external connectors must not be used as protective general earth contact for the equipment The optical transmitters could cause safety problems to the personnel in charge of the installation test service or maintenance of the equipment This is due to the high level of optical power in some fibre optic installations and to the fact that light radiation is infrared type not visible for the human eye In consequence never look directly either at the optical output of an optical transmitter or at the end of an optical fibre connected to an active optical transmitter This situation will be especially dangerous when the inspection
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