Digital video optical receiver and auxiliary signals
Contents
1. T ess mie Mele i a AUX 1 AUX 2 AUX 3 socket socket socket Disconnect the power supply from the unit before doing this operation Once the protective metallic cover is removed please extreme the precautions since the fibre optic is accessible In order to make the external connections there are three 8 poles terminals on the cover of the equipment 3 in the picture marked as AUX1 AUX2 and AUX3 The pole assignments are distributed as follows Pole Sound _ Data Contacts 8 OUT GND GND In the plug in card A19XD the balanced interface by default is RS 422 Should pole 7 SEL485 be short circuited with pole 8 select RS 485 4w Should you want to use RS 485 2w put together TXA with RXA and TXB with RXB In the plug in card A19XC the poles 1 and 2 OUT1A and OUT1B correspond to the output relay 1 terminals and poles 3 and 4 OUT2A and OUT2B to those of relay 2 Poles 6 and 7 IN1 and IN2 correspond to 1 and 2 input contacts and poles 5 and 8 GND to signal ground In the plug in card A19XA poles 1 and 3 In and In correspond to two coaxial audio independent inputs or one balanced audio signal input Poles 6 and 8 OUT and OUT correspond to the two coaxial audio independent outputs or one balanced audio signal output always with reference to GND audio signal ground INSTALLATION First of all insert the module in any of the slots available in the housing system P4002. after checking that it has been switched off Fix it with the fastening screws 1 in the picture Introduce the fibre jumper in the optical connector 4 in the picture after removing the protective cover of the connector The protector must be kept to be replaced in case the optical connection is temporary removed Then carry out the cabling of the video 2 in the picture and the auxiliary signal terminals 3 in the picture Turn the housing system on and check that the On LED 5 in the picture lights up Do not connect unless you have previously cleaned the optical connector of the jumper Introduce the connector carefully in order to avoid damages in the polished surface The connection or disconnection of one terminal with system on may destroy its electrical interface 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 and to keep a good long term stability TECHNICAL CHARACTERISTICS OPTICAL PARAMETERS Optical Emitter Receiver Wavelength note 1 1 550 1 310 nm Tx Rx Number and type of fibre 1 x Singlemode 9 125 um Optical power notes 2 and 3 gt 4 dBm Sensitivity note 3 lt 29 dBm Laser PIN Line rate 155 52 Mbits s ELECTRICAL PARAMETERS Output voltage 1 Vpp 3 dB 75 Q Resolution 10 bits Bandwidth 1 dB gt 5 8 MHz Differenti
3. Digital video optical receiver and auxiliary signals transciever A195 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 app
4. al gain phase lt 2 0 2 0 SNRw ratio weighted gt 67 dB AUXILIARY SIGNALS ELECTRICAL PARAMETERS Number of auxiliary channels 3 Bi directional Type of auxiliary channels 1xAudio 1xData 2xON OFF Type of audio signal Balanced audio 20 Hz 20 kHz 0 dBm nom 10 dBm max Resol Sampling frequency 16 bits gt 55 kHz SNRw ratio weighted gt 80 dB Input Output imped note 1 600 or high impedance 600 Q or low impedance RS 232 RS 422 RS 485 gt 128 kbits s RS 232 422 gt 19 2 kbit s RS 485 Active by earth closing dry contact Type of data signal Maximum binary rate Type of IN OUT contact POWER PARAMETERS Power requirements Internal of PAOW Consumption note 1 lt 8 W MECHANICAL PARAMETERS Format Plug in module for 19 housing 3U high 10 TE wide 160 mm deep without connectors 1 x FC PC BNC 3 x 8 poles screw 1x2 poles Dimensions Optical video connector Auxiliary channel power supply connector ENVIRONMENTAL CONDITIONS Thermal range 40 C to 74 C Humidity range 0 95 without condensation INDICATORS AND ALARMAS note 4 Unit in operation Green ON No video at the remote input Red NV Absence of optical power Red APO For each auxiliary channel 2xAmber A1 A A1 B A3 B Audio A Excess input signal Data A B Output Input Contacts A B Relay 1 2 closed Note 1 Typical values as production average Note 2 Actual values are given in the test s
5. ear when protecting lids or coverings 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 especial
6. heet These values are measured according to the test procedure for this device Note 3 Value guaranteed for a BER lt 10 in all the operating range Note 4 Led s 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 2007
7. ly dangerous when the inspection 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 2 0 DESCRIPTION A195 is a digital video receiver and up to three auxiliary signals transceiver over one singlemode optical fibre It uses a laser as optical emitter and a PIN photodiode as receiver It has been designed to be used together with one of the Equitel s compatible optic transceivers Its format is a 10TE wide module to be inserted into a 19 housing of Equitel series P400 The following photograph indicates the most important parts of this device Fastening screws Video signal output Auxiliary signal connectors Optical connector Working unit indicator LED akWND The auxiliary signals plug in cards must be placed on their sockets in the main plate after removing the metallic protecting cover which is fastened by screws in the front and rear part Jein GF TELLO wiw ia b a Fa s i 5 i D Ti K
Download Pdf Manuals
Related Search