rev. 2.3 may 22 , 2002 n applicable to itu - t g.983.1 classb n applied to onu(optical network unit) for s ingle f iber b i - directional pon s ystem. n compact integrated transceiver consists of - 1.3 m m b urst - mode t ransmitter with f eed forward apc c ircuit by use of rom . - 1.5 m m c ontinuous - mode r eceiver with c lock & d ata recovery f unction. - 1.3/1.5 m m wdm f unction by planar lightwave circuit (plc) . n optical output alarm (tx alm) n optical output shutdown (shutdown) n optical input loss detection (rx alm) values parameter unit min. typ. max. ambient t emperature o c ? 40 ? + 8 5 power s upply v oltage v + 3.14 + 3.30 + 3.46 power s upply c urrent ma ? 300 50 0 features operating conditions od - b6212 - onub 622mbps(downstream)/622mbps(upstream ) pon optical transceiver module for onu
sales department, fiber optic devices division optical network operations unit , nec networks nec corporation 1753 shimonumabe,nakahara - ku,kawasaki,kanagawa 211 - 8666,japan tel:+81 - 44 - 435 - 5412 fax:+81 - 44 - 435 - 5109 http://networks.nec.co.jp/on/dd/en/ copyright ? 200 2 nec corporation nec electronics (europe) gmbh sales and marketing of semiconductors across europe oberratherstr. 4, 40472 dusseldorf, germany tel:+49 - 211 - 6503 - 979 fax:+49 - 211 - 6503 - 358 usa&canada nec fiberoptech, inc. 10050 nor th wolfe road, suite sw1 - 290 cupertino, ca 95014 ,usa tel: +1 - 408 - 863 - 2000 fax: +1 - 408 - 863 - 2019 parameter unit od - b6212 - onub transmitter (burst - mode) bit rate mbps 622.08 laser diode type ? fp - l d center wavelength nm 1274 to 1360 spectral width(rms) nm 2.8 mean output power dbm ? 1 to + 4 extinction ratio db 3 10 receiver (continuous - mode) bit rate mbps 622.08 receive wavelength nm 1480 to 1580 photo detector ? pin - pd sensitivity dbm ? 28 overload dbm 3 ? 6 optical output alarm ? normal operation : low level transmitter fault condition : high level optical output shutdown ? optical output enable : low level optical output shutdown : high level optical input loss detection ? norm al operation : low level no optical input : high level performance dimensions (unit:mm) 2.54 x 15=38.1 40.2 (+/ - 0.6) 55.0 (+/ - 0.6) 8.2 (+/ - 0.3) 9.72 top view 35.56 1 32 3.2(+/ - 0.5) 16 17 f 0.64 data subject to change without notice
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