Abstract: A security system is disclosed for detecting intrusions at a plurality of predetermined locations having moveable closure members. The system comprises a plurality of intrusion sensors disposed at the locations for detecting movement of the closure members. Primary and secondary optical fiber sensor lines are routed through the intrusion sensors, and primary and secondary scanning units pulse signals along the sensor lines and receive reflected signals back from the sensor lines. A processor processes the reflected signals to determine if a reflection and/or attenuation change has occurred in a reflected pulse signal signifying a prescribed level of unauthorized intrusion activity which matches a signature intrusion signal. In the event of a cut through in the sensor lines, the primary sensor line monitors the sensors downstream of the break, and the secondary sensor line is activated to monitor the sensors upstream of the break.

Abstract: A security system is disclosed for detecting intrusions at a plurality of predetermined locations having moveable closure members. The system comprises a plurality of intrusion sensors disposed at the locations for detecting movement of the closure members. Primary and secondary optical fiber sensor lines are routed through the intrusion sensors, and primary and secondary scanning units pulse signals along the sensor lines and receive reflected signals back from the sensor lines. A processor processes the reflected signals to determine if a reflection and/or attenuation change has occurred in a reflected pulse signal signifying a prescribed level of unauthorized intrusion activity which matches a signature intrusion signal. In the event of a cut through in the sensor lines, the primary sensor line monitors the sensors downstream of the break, and the secondary sensor line is activated to monitor the sensors downstream of the break.

Abstract: A method and apparatus are disclosed in which a continuous elongated length of multi-conductor flat ribbon cable having a plurality of continuous signal and ground conductors for serially interconnects a plurality of terminal connectors. The signal and ground conductors include signal and ground wires which are disposed along the length of the cable in a predetermined arrangement with insulation material covering the wires. The insulation material is removed at predetermined positions along the length of the cable exposing the signal and ground wires for attachment to the terminal connectors.

Abstract: A versatile electrical connector housing 12 with strain relief, includes a first housing section 26 and a second housing section 30. First back ridge 44 being offset from and in combination with a second back ridge 48 provide a strain relief. A vertical passage 50 in combination with a horizontal passage 52 allows an electrical transmission cable 16 to enter into the electrical connector within the profile of the electrical connector.

Abstract: A connector housing and method for minimizing EMI emissions from an electrical transmission cable is disclosed which includes providing a series of interrupt elements in each half of the connector housing which interlock together when the halves are clamped together about the electrical transmission cable. The interrupt elements provide discontinuity along the length of the interface joint which reduces the emission of interference signals from the housing. Preferably the housing connector and interference elements are molded from plastic material and plated with a metallic shield material.

Abstract: A coax retention comb adapted to be fittingly engaged within an interior area of a back shell of a coax assembly. The comb includes a plurality of slots formed across its top and bottom surfaces, the slots are vertically offset from each other and are tapered inwardly from rear to front which are adapted to receive an insulated coaxial wire. The coaxial wire has a diameter slightly larger that the inward tapered end of the slots so that the tapered ends are expanded where the wires are inserted therein. The interior area of the back shell is of a size which forces the comb back into its original configuration when the comb is fitted therein. This causes the inwardly tapered ends of the slots to bite into the insulation of the wires which fixedly position the wires relative to the comb.

Abstract: A cable assembly (A) is disclosed for a logic analyzer which comprises a flat woven cable (14) having an analyzer connector (18) and a probe connector (22). The analyzer connector includes a printed circuit board (32) and the probe connector includes a printed circuit board (34). Resistor-capacitor networks (D, E) are carried on respective PC board (32, 34) for extending the effective bandwidth of the cable assembly. A cable assembly (A") is disclosed having a low capacitance provided by high gauge signal conductors (92) and increased center-to-center spacing between the signal conductor and exclusively associated ground wires (94a, 94b). Resistor netowkrs (D', E') provide a high input resistance to the cable assembly. An interface shroud (B) connects terminal (C) of probe leads (10) to probe connector (22). A plurality of exterior grooves (54) are formed on an upper wall (44) of interface shroud (B) which receive locking arm (62) of terminal body (60).