Amphenol LMD and LMS Modular Connectors Amphenol Aerospace for Rack & Panel or Cable Attachment INTRODUCTION: FEATURES, BENEFITS, PERFORMANCE LMD Modular Connectors The LMD Connector Series was designed by Amphe- nol Pyle-National to provide flexibility in the assembly of wire harnesses that are used in instrumentation and avionic control environments. The modular design of the LMD provides rack and panel or cable to cable attachment. Design Features of LMD Connectors An LMD Connector is comprised of a housing, modules and contacts - each ordered separately, requiring assembly Lightweight housings are offered in two materials standard black thermoplastic LMD Receptacle and Plug high performance composite material for EMI shielding LMD Benefits white thermoplastic nylon material with increased Reduces assembly and production costs solvent resistance Eliminates costly PC board and associated hardware Four standard modules are available with the Reduces inventory levels and associated costs following contact arrangements: 1 8, 4 16, 9 20, Allows for a variety of circuit configurations 16 22 Permits ease of circuit upgrading Modules are available in sealed and unsealed Facilitates equipment maintenance versions Linear module design may be used for rack and panel or cable to cable applications LMD Performance Characteristics Bussing modules available to allow for a plurality of circuit network configurations without extra Temperature Rating 55 C to +140 C (-67 F to + 284 F) hardware Insulation Resistance 5000 megohms initial: 1000 megohms after 96 Diode modules provide a current protection system (min.) hours humidity for avionic instrumentation packages and eliminate the need for dedicated PC boards and other Durability 250 cycles (mating and unmating) hardware Maximum discontinuity of one microsecond Miniature relay modules can be added which Vibration when subjected to sinusoidal vibration of 10 to eliminate the need for printed circuit boards and 2000 Hz at 15 gravity units hardware Maximum discontinuity of one microsecond when subjected to 1/2 -sine-wave transient Physical Shock shock of 50 gravity units with pulse duration of 11 milliseconds Module Insertion & 5 lbs. maximum Removal Force Module Retention 70 lbs. minimum LMS Modular Connectors Supplementing the LMD connector family, Amphenol/Pyle National offers the LMS in-line splice connector a low cost interconnects that incorporates the LMD modules and contacts. Standard LMS splice connector - 3-piece assembly with module removal tool access Tool-less splice connector - 3-piece assembly with a push-button module release for easy module removal Two-piece bracket available for panel mounting Used in wire harness, instrument and equipment terminations and test points LMS Tool-less Splice Connector 100 Contact Amphenol Aerospace for more information at 800-678-0141 www.amphenol-aerospace.com Other LMD/LMS Rack & Panel Ruggedized Introduction/ Low Mating Force MIL-DTL-55302 High Density LRM (Line Replaceable Modules) Pkg. Solutions/ Rectangular Rectangular Brush VME64x / 3 3 Docking Conn./ Hybrids - Signal/Power/ Standard Options/ Hybrids - Fiber Optics/ Staggered/ HSB HDB Brush Contact Interconnects Interconnects Ruggedized VITA 60, 66 Accessories/Install. Coax/Fiber Optics Brush Hi Speed Accessories Hi Speed/RF/Power GEN-X Introduction/ Ruggedized Low Mating Force MIL-DTL-55302 Rack & Panel LMD/LMS Other LRM (Line Replaceable Modules) High Density Pkg. Solutions/ VME 64x/ 3 Brush Rectangular Rectangular 3 Staggered/ Hybrids - Fiber Optics/ Options/ HDB HSB Standard Hybrids - Signal/Power/ Docking Conn./ Brush Contact VITA 60, 66 Ruggedized Interconnects Interconnects GEN-X Accessories Hi Speed Brush Coax/Fiber Optics Accessories/Install. Hi Speed/RF/Power LMD Modular Connectors Amphenol Aerospace FEATURES, OPTIONS & CONTACT DATA LMD Plug LMD Receptacle Optional Keying Post (Six position Optional keying capability) Center Jackscrew Strain Reliefs Pin or Socket Modules (may be intermixed in plug or receptacle housings Module Variety of Contacts Sealed or unsealed, accept rear release 8, 16, 20 and 22 gauge contacts (See pages 103-105 for the available. (accept 8 through 28 AWG wire) variety of module types available) LMD Features and Options Contact Data LMDs module options provide a mix of both active and Contact Resistance Dielectric Max. passive devices within one connector. The features and Contact Wire Withstand- Recommended options of this series describe the design flexibility in this Test Current Max. Size Size ing Voltage Working Voltage connector series: (amperes) Millivolts AC (RMS) AC (RMS) LMD Standard components are molded of a U/L rated 22 5.0 73 22 1800 600 94VO flame retardant, light-weight thermoplastic material. 28 1.5 54 Alternate white nylon material (provides resistance to 20 7.5 55 industrial oils and solvents) is available consult Amphenol 20 1800 600 24 3.0 45 Aerospace for availability. 16 13.0 49 The linear LMD connector may be used for rack and panel 16 2300 900 20 7.5 46 or cable-to-cable applications. 12 23 42 Plug and receptacle housings may be front or rear panel 8* 2300 900 14 17 40 mounted. 8 46 26 Optional keying post provides six position keying 8 2300 900 10 33 28 capability. The optional center jackscrew provides ease of mating Contact Crimp and unmating and insures high reliability under vibration. Contact Wire Max. Tensile Strength Size Size Wire Insulation Cable strain reliefs are available for internal attachment. Lbs. Min. (See page 107). 28 3 26 5 Variety of module types. Sealed and unsealed modules 22 .054 24 8 accept rear release 8, 16, 20 and 22 gauge contacts. 22 12 Bussing, diode and relay modules available. PC tail 24 8 contacts are also available consult Amphenol Aerospace. 20 22 12 .083 20 20 A variety of contacts accept 8 through 28 AWG wire. 20 20 Commercially available automated crimp terminating 16 18 30 .103 equipment may be used. 16 50 Wired or unwired modules are rear inserted and held by 14 70 8* .255 two retention tines. With the aid of a front release tool, the 12 110 modules are easily removed from the rear. (See pg. 107). 10 150 8 .255 Pin or socket modules may be intermixed in plug or 8 220 receptacle housings. * with 12 wire well Contact Amphenol Aerospace for more information at 800-678-0141 www.amphenol-aerospace.com 101