Fiber Optic Multi-Channel Connectors FOMC ITT Cannon's EOMC Series Fiber Optic connectors are designed to meet the needs of military and commercial customers who require a rugged environmental 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 removable 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 versatility 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 contacts. This catalog provides complete ordering information on available shell types, contact layouts, fiber and cable dimensional and mechanical parameters. State-of-the-art ceramic alignment tips on the contact provide maximum coupling performance - less than 1.0 dB average coupling less. Standard Data Fungus inert per requirement 4 of MIL-STD-454 Fluid resistant (elastomeric materials) per MIL-H-5606-Hydraulic fluid, petroleum base MIL-L7808-Lubricating oil, synthetic base MIL-G-3056-Gasoline MIL-A-8243-Ethelyne gylcol Description Materials Shell Hardware Aluminum Alloy Cable Clamp Aluminum Alloy Insert, Front Removable Thermoplastic Interfacial Seal Elastomer Cable Seal Elastomer O Rings Elastomer Alignment Guide Thermoplastic Strain Relief Spring Stell wire with black chrome finish Mandrel/Yoke Thermoplastic Receptacle Yoke Thermoplastic Dust Cap Elastomer Marking Laser with clear chromate over exposed base metal Contact Arrangements Face Veiw of Insert 2 and 4 Channel 8 Channel F2 F1 M1 F1 M1 F3 F1 F4 M1 M4 F2 M2 M2 M3 Dimensions are shown in inches (millimeters). Dimensions subject to change. www.ittcannon.com 299 Fiber Optic Multi-Channel Connectors FOMC How to Order FOMC SERIES 6- 2 W 2 C * *** SERIES Fiber Optic Multi-Channel SHELL STYLE SHELL STYLE 2 - Square Flange Receptcale (2/4) channel only) 6 - Cable Plug 7 - Jam Nut Receptacle SHELL SIZE DUST CAP CABLE TYPE SHELL SIZE (Channels) CABLE SIZE (O.D) (Maximum number of contact positions) 2 4 8 POLARIZATION POSITION MODIFICATION CODES CABLE SIZE (O.D) DUST CAP W - Connector supplied with dust cap X - Without dust cap POLARIZATION 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 CABLE TYPE 1 - Pigtail buffered fiber (receptacle only) 2 - Multi fiber strengthened cable 3 - Singel fiber strengthned cables (8 channel only) (8 channel plug only. Omit for 2/4 channel) 0 - Not polarized 1 thru 6 - key position MODIFICATION CODES Consult factory *NOTE: Cable size G and H are for 8 channel FOMC Connector only 2 and 4 Channel Square Flange Receptacle FOMC 2 3.700 (93.98) .130 (3.30) 1.395 (35.43) Millimeters are in parenthesis 1.480 (37.60) 2.40 (60.96) 1.064 (BSC .(27.03) 1.064 (BSC (27.03) 1.480 (37.60) .128 (3.25) Dia. 4 Holes Ø .013 .150 (3.81) Max. Panel Plug FOMC 6 3.700 (93.98) 2.40 (60.96) Shell End Nut 1.175 Dia. (29.845) Cable Strain Relief Connector Identification And Mating Instructions Front Removable insert Jam Nut Receptacle .764 (19.41) FOMC 7 1.395 (35.43) 3.700 (93.98) .130 (3.30) 1.395 (35.43) .130 (3.30) 2.40 (60.96) .945 Dia. (24.00) Shell 1.505 Dia (38.23) 1 (3 .44 6. 0 58 ) Jam Nut Front Removable Insert 1.150 (29.21) Yoke Tabs Rear Removable Yoke (Optical Contact Retainer) .150 (3.81) Max. Panel .150 (3.81) Max. Panel Dimensions are shown in inches (millimeters). Dimensions subject to change. www.ittcannon.com 300 Fiber Optic Multi-Channel Connectors FOMC 8 Channel Square Flange Receptacle FOMC 2 3.96 (100.5) 2.50 BSC (63.5) 2.0 BSC (50.8) 2.02 (51.2) .193 (4.9) 2.64 (67.1) 2.500 (63.5) .255 DIA. (6.35) 4 HOLES Ø.015 2.00 (50.8) 1.98 DIA. (50.4) 1.76 DIA. (44.7) Plug FOMC 6 2.64 (67.1) 5.98 (151.8) 5.28 (134.0) 1.76 DIA. (44.7) 2.03 DIA. (51.6) Jam Nut Receptacle FOMC 7 5.24 (133.0) .800 (20.3) 3.22 (81.8) .193 (4.9) .193 (4.9) 2.02 (51.2) 2.02 (51.2) 1.32 (33.5) O-Ring 2.500 DIA. (63.5) 1.700 Dia. (43.2) 1.76 Dia. (44.7) . IA D 2 ) 36 .0 2. (60 Removable Front Insert M48 x 1.5-6g thd. .200 (5.1) Max. Panel M48 x 1.5-6g Thd. .200 (5.1) Max. Panel Jarn Nut 3.96 (100.5) Polarizing Flanges 2.02 (51.2) 2.64 (67.1) .193 (4.9) 2.500 DIA. (63.5) 1.76 Dia. (44.7) . IA D 2 ) 36 .0 2. (60 M48 x 1.5-6g Thd. .200 (5.1) Max. Panel Recommended Panel Cutouts 2 and 4 Channel FOMC 2 1.073 +.010 -.000 (27.25 + 0.25) -0.00) DIA 1.064 BSC (27.03) Ø.005 .126 +_ .002 DIA. CSK 82˚ x .230 +_ .005 1.064 BSC (27.03) 8 Channel FOMC 7 FOMC 2 1.016 + .000 -.005 (25.80 + 0.00 -0.13) FOMC 7 +.015 Ø2.000 -.000 2.000 (50.8) (50.8 +.038 -.0.0) 1.821 + .005 -.000 (48.25 + 0.13) -0.00) Ø.253 +_ .002 Ø.005 CSK B2˚ x .507+/- .010 1.073 + .010 Dia. (27.25 + 0.25) -.000 -.000) 2.000 BSC (50.8) 1.890 Dia. (48.00 + 0.25) +.010 -.000) -.000 Dimensions are shown in inches (millimeters). Dimensions subject to change. www.ittcannon.com 301 Fiber Optic Multi-Channel Connectors FOMC Contact Assembly TIP, TERMINUS FERRULE, OPTICAL "O" RING, FRONT SPRING BODY. REAR FERRULE "O" RING REAR TUBE, SUPPORT ∆ TIP I.D. .175 (4.44) MAX. DIA. 1.300 (33.02) MAX. .170 (4.32) MAX. DIA. .230 (5.84) MAX. DIA. FIBER BUFFER DIA How to Order - Contacts FOMC - T - 10 - 1270 ITT CANNON SERIES TERMINUS ASSEMBLY BUFFER DIAMETER TIP TIP (I.D. in tenths of microns) SERIES FOMC - Fiber Optic Multi-Channel 1270 - 127.0 µm min. 1300 - 130.0 µm min. 1440 - 144.0 µm min. TERMINUS ASSEMBLY BUFFER DIAMETER (in millimeters) 05 - 0.5 mm Buffer 10 - 1.0 mm Buffer 11 - 1.1 mm Buffer Coupling Performance TOTAL SAMPLES = 3056 MEAN = 0.93 SID. DEV. = 0.32 MINIMUM = 0 MAXIMUM = 2.2 900 800 50/125 FIBER CERAMIC ALIGNMENT TIP CONTACTS 700 FREQUENCY 600 500 400 300 200 100 0 0 0.5 1 1.5 2 2.5 CONNECTOR LOSS (dB) Dimensions are shown in inches (millimeters). Dimensions subject to change. www.ittcannon.com 302 Fiber Optic Cable Assemblies ITT Cannon is a major supplier of fiber optic cable assemblies for mulit channel tactical ground based and avionics appliations. Experienced includes de- livery of more than 20,000 custom fiber optic links over the past twelve years. Cable assemblies are built to specific design requirements and are 100% optically tested. FOMC TERMINATED CABLE LENTGH FOMC Plug-to-Plug Assembly TERMINATED ASSEMBLY LENTGH PIGTAIL CONNECTORS (SMA.ST® CONNECTORS) * FOMC Receptacle/Pigtail Assembly *ST is a trademark of AT&T FOHC TERMINATED LENTGH INDIVIDUAL SINGLEFIBER CABLES (NYLON BRAIDED SLEEVE) MARKING SLEEVE CONNECTOR ASSY MULTI-FIBER TACTICAL CABLE BACKSHELL DUST CAP 38999 F.O. Plug-to Plug Assembly TERMINATED LENTGH MARKING SLEEVE CABLES CONNECTOR ASSY PIGTAIL CONNECTORS * (SMA.ST® CONNECTORS) DUST CAP 38999 F.O. Receptacle/Pigtail Assembly *ST is a trademark of AT&T Dimensions are shown in inches (millimeters). Dimensions subject to change. www.ittcannon.com 303