Tender For supply of lab equipments - purchase of lab equipments, ask modulation and demodulation kitspecifications: message signal1: 8-bit variable data,amplitude 5v. message signal 2: debounced data, amplitude low (0) and high (5 v). message signal 3: fixed data 25 khz, 12.5 khz, 6.25 khz, 3.12 khz, amplitude 5 v. carrier signal: sine wave, frequency 200 khz, amplitude 5 v. modulator type: switching modulator using analog switch / transistor switching ic. demodulator: envelope detector and lpf. comparator: lm311 based. supply voltage (board): +12 v, +5 v dc. supply current: 100 ma minimum. input voltage: 230 v ac, 50 hz. interface connectors: 2 mm banana socket., fiber optic communicationtrainer kitspecifications:power supply: 230 v ac 10%, 50 hz mains operation. built-in regulated power supply. optical transmitters: led transmitter: 660 nm. optical receivers: phototransistor / pin photodiode receiver. built-in signal conditioning and amplifier circuits. audio power amplifier with speaker/headphone output. comparator / pulse shaping circuit for digital signal recovery. test points for cro observation and signal monitoring. fiber media: multimode plastic optical fiber (pof). fiber patch cords with connectors. signal sources: built-in sine wave generator. built-in square wave / digital pulse generator. voice signal input through built-in microphone/audio source. trainer features: separate transmitter and receiver sections. on-board test points for signal observation. led indicators for signal monitoring. fault simulation facility. compact tabletop modular design. circuit diagram printed on pcb. bandwidth: analog bandwidth: up to 350 khz. digital bandwidth: up to 2.5 mhz. controls: variable signal amplitude control. variable frequency control. optical intensity adjustment. standard accessories: patch cords and connectors. power cord. audio connecting cable. user manual.
Tender For auction sale of others - scrap miscellaneous item(1)main & stand by computer each processor consisting of pentium iii based on latest 600 mhz 32 bit 128 mb ram, 20gb hdd 52 cd drive (writable) 1.44 mb fdd, 104ms window compatible key board & mouse, 15" colour svga monitor with network card & tcp/ip protocol,2nos(2)communication server pentium ii based pc or latest 600 mhz 32bit 128 mb ram, 20 gb hdd, 52xcd drive (writable) 1.44mb fdd,104 ms window compatible key board & mouse, 15" colour svga monitor with network card & pcp/ip protocol.,2nos(3) man & stand by work station each consisting of pentium iii based pc or latest with minimum 128mb,ram 20 gb hdd, 52xcd drive 1.44 mb fdd & speed 600 mhz along 3nos. 19" svga fully graphic colour vdus with each machine will have it separate alphanumeric key board & mouse b67 network card & tcp/ip support multimedia kit should be available to give distinguishing alarm to tpc with network card & pcp/ip protocol,5nos(4) laser coloured data logging printer suitable for printing a3 size paper (with minimum 600x3000 dpi resolution),2nos(5)indication switching pannel to display ups alarm/status,1no(6)master clock & slove clock,3nos(7)front end driver (display),3nos(8)2x5 kva dual load sharing ups system,1no(9)server computer & fep computer,4nos(10)work station computer,4nos(11)ac modem,4nos(12)dot matrix printer,2nos(13)scada software for dual hot stand by stand by system(cd)(1-13)location-sse/rc/ddu,note-pc-17nos.,dot matrix printer-02nos,colour printer-02nos,electronic device-06nos,cloc-03nos,cd-01no,total weight of electronics items-473kg,ups-1 set, total wt-375kg(ferrous-353kg,non-ferrous-22kg)