www.ittcannon.com 299 dimensions are shown in inches (millimeters). dimensions subject to change. fiber optic multi-channel connectors fomc standard data face veiw of insert 2 and 4 channel 8 channel m1 m1 m1 m2 m2 f1 f1 f1 f3 f4 m4 m3 f2 f2 contact arrangements state-of-the-art ceramic alignment tips on the contact provide maximum coupling performance - less than 1.0 db average coupling less. description shell hardware cable clamp insert, front removable interfacial seal cable seal o rings alignment guide strain relief spring mandrel/yoke receptacle yoke dust cap marking fungus inert per requirement 4 of mil-std-454 fluid resistant (elasto- meric materials) per mil-h-5606-hydraulic fluid, petroleum base mil-l7808-lubricating oil, synthetic base mil-g-3056-gasoline mil-a-8243-ethelyne gylcol materials aluminum alloy aluminum alloy thermoplastic elastomer elastomer elastomer thermoplastic stell wire with black chrome finish thermoplastic thermoplastic elastomer laser with clear chromate over exposed base metal itt cannon's eomc series fiber optic connectors are designed to meet the needs of military and commercial customers who require a rugged envi- ronmental multifiber field connector. the fomc combines features which provide the user with a connector that will withstand rough handling and weather extremes with features of elastomeric cable and interface sealing, scoop proof interface to prevent optical contact damage, removable front insert for easy optical contact cleaning, anodized shell finish, and a tough, strong dust cap with attaching stainless steel strap. hermaphroditic design means plugs will mate with an identical plug as well as receptacles. the remov- able insert assures correcting mating and alignment. in the fomc, ruggedness is combined with good optical perfomance, rapid coupling and attractive pricing. another plus feature for itt cannon's fomc design is the fiber flexure chamber which prevents tensile loads from being applied to the terminated fiber. the chamber provides space for surplus fiber in a service loop of sufficient lenght to permit one retemination of one or more fibers in the plug and cable receptacle without reterminating the strength member at the same time. this versa- tility is an itt cannon exclusive. the fomc 2, 4, and 8 channel connector are available as a cable plug, and several receptacle shell configurations. the 8 channel can also be used with less contacts i.e. 6,4, or 2 channels. sealing plugs are supplied with the 8 channel connector when using less than the full complement of con- tacts. this catalog provides complete ordering in- formation on available shell types, contact layouts, fiber and cable dimensional and mechanical param- eters.
www.ittcannon.com 300 dimensions are shown in inches (millimeters). dimensions subject to change. fiber optic multi-channel connectors fomc how to order 2 and 4 channel series fiber optic multi-channel 2 - square flange receptcale (2/4) channel only) 6 - cable plug 7 - jam nut receptacle (maximum number of contact positions) 2 4 8 w - connector supplied with dust cap x - without dust cap 1 - pigtail buffered fiber (receptacle only) 2 - multi fiber strengthened cable 3 - singel fiber strengthned cables (8 channel only) a - .190 + _.015 (4.83 + _.38) d - .236 + _.019 (6.0 + _.5) f - .276 + _.015 (7.0 + _.4) g - .374 + _.015 (9.50 + _.38)* h - .500 + _.015 (12.70 + _.38)* p - pigtail buffered fiber (8 channel plug only. omit for 2/4 channel) 0 - not polarized 1 thru 6 - key position consult factory *note: cable size g and h are for 8 channel fomc connector only series fomc 6- 2 w 2 c * * * * shell style shell size dust cap cable type cable size (o.d) cable size (o.d) polarization position polarization modification codes modification codes shell style shell size (channels) dust cap square flange receptacle fomc 2 1.480 (37.60) 1.064 (bsc .(27.03) 1.064 (bsc (27.03) 1.395 (35.43) 1.175 dia. (29.845) 3.700 (93.98) shell front removable insert 1.395 (35.43) 1.505 dia (38.23) front removable insert jam nut .150 (3.81) max. panel .764 (19.41) .130 (3.30) .945 dia. (24.00) shell 1.150 (29.21) yoke tabs rear removable yoke (optical contact retainer) 1.395 (35.43) 3.700 (93.98) .130 (3.30) .150 (3.81) max. panel 2.40 (60.96) 1.44 0 ( 3 6.58) connector identification and mating instructions 2.40 (60.96) end nut cable strain relief .130 (3.30) 3.700 (93.98) millimeters are in parenthesis 2.40 (60.96) .150 (3.81) max. panel 1.480 (37.60) .128 (3.25) dia. 4 holes ? .013 plug fomc 6 jam nut receptacle fomc 7 cable type
www.ittcannon.com 301 dimensions are shown in inches (millimeters). dimensions subject to change. fiber optic multi-channel connectors fomc 8 channel recommended panel cutouts square flange receptacle fomc 2 plug fomc 6 jam nut receptacle fomc 7 fomc 2 fomc 7 2 and 4 channel fomc 2 fomc 7 8 channel 2.50 bsc (63.5) 2.0 bsc (50.8) 1.98 dia. (50.4) 2.03 dia. (51.6) 5.98 (151.8) 5.28 (134.0) 2.64 (67.1) 1.76 dia. (44.7) 2 .3 6 2 d i a . ( 6 0 . 0 ) 2 .3 6 2 d i a . ( 6 0 . 0 ) 2.500 dia. (63.5) 2.500 dia. (63.5) m48 x 1.5-6g thd. .200 (5.1) max. panel .200 (5.1) max. panel polarizing flanges 2.02 (51.2) 2.02 (51.2) 1.32 (33.5) .800 (20.3) .193 (4.9) .193 (4.9) 3.96 (100.5) 2.64 (67.1) 1.700 dia. (43.2) removable front insert m48 x 1.5-6g thd. m48 x 1.5-6g thd. 1.064 bsc (27.03) 1.064 bsc (27.03) 2.000 (50.8) 2.000 bsc (50.8) ?.253 + _ .002 ?.005 ?.005 csk b2? x .507+/- .010 ?2.000 (50.8 +.015 -.000 +.038 -.0.0) 1.073 + .010 dia. (27.25 + 0.25) -.000 -.000) 1.890 dia. (48.00 + 0.25) 1.821 + .005 -.000 (48.25 + 0.13) -0.00) +.010 -.000 -.000) .126 + _ .002 dia. csk 82? x .230 + _ .005 1.073 +.010 -.000 (27.25 + 0.25) -0.00) dia 1.016 + .000 -.005 (25.80 + 0.00 -0.13) jarn nut 5.24 (133.0) 2.02 (51.2) o-ring 3.22 (81.8) .193 (4.9) 1.76 dia. (44.7) 1.76 dia. (44.7) .200 (5.1) max. panel 2.02 (51.2) 3.96 (100.5) .193 (4.9) 2.64 (67.1) 1.76 dia. (44.7) 2.500 (63.5) 2.00 (50.8) .255 dia. (6.35) 4 holes ?.015
www.ittcannon.com 302 dimensions are shown in inches (millimeters). dimensions subject to change. fiber optic multi-channel connectors fomc contact assembly tip, terminus itt cannon series fomc t 10 1270 - - - series fomc - fiber optic multi-channel 05 - 0.5 mm buffer 10 - 1.0 mm buffer 11 - 1.1 mm buffer 1270 - 127.0 m min. 1300 - 130.0 m min. 1440 - 144.0 m min. terminus assembly terminus assembly buffer diameter buffer diameter (in millimeters) tip tip (i.d. in tenths of microns) total samples = 3056 mean = 0.93 sid. dev. = 0.32 minimum = 0 maximum = 2.2 900 800 700 600 500 400 300 200 100 0 50/125 fiber ceramic alignment tip contacts ? tip i.d. ferrule, optical "o" ring, front spring .175 (4.44) max. dia. 1.300 (33.02) max. body. rear ferrule .170 (4.32) max. dia. .230 (5.84) max. dia. "o" ring rear tube, support fiber buffer dia how to order - contacts coupling performance 00.51 connector loss (db) frequency 1.5 2 2.5
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