Systems and methods are provided for automatically detecting passive components in communications systems using radio frequency identification (RFID) tags. A coupling circuit is provided in a system between a communications network and an RFID tag. The RFID tag is associated with a passive element of a distributed antenna system (DAS). The coupling circuit can allow an RFID signal received from an RFID transmitter over the communications network to be transported to the RFID tag. The coupling circuit can substantially prevent mobile communication signals on the communications network from being transported to the RFID tag.

A flexible printed circuit board and optical network allocation device comprising same. The flexible printed circuit board comprises a circuit board body (1), a plurality of protruding interfaces (101) on the circuit board body, an adhesive layer (2) covering the upper surface of the circuit board body (1), components (102), and an uplink interface (103) used for information interaction with the components (102) on the circuit board body (1). Each protruding interface (101) is provided with an electronic label read/write interface (1011) used for reading electronic label information on an optical fiber head and an indicator (1012). The adhesive layer (2) is provided with an open window region (201) in the middle. The components (102) are immobilized on the upper surface of the circuit board body (1) and located in the open window region (201) of the adhesive layer, and are connected to the electronic label read/write interface (1011), the indicator (1012), and the uplink interface (103) respectively, used for controlling and monitoring the read/write information of the electronic label read/write interface (1011) and controlling on/off of the indicator (1012).

A fiber optic connector having a radio frequency identification tag for optically coupling with a mated fiber optic connector, comprising: a housing; a fiber ferrule extending from a first end of the housing; a spring member provided within the housing; a tail sleeve connected at a second end of the housing opposite to the first end to fix an end of an optical cable; and a tag receiving portion formed in a sidewall of the housing, wherein the radio frequency identification tag is received in the tag receiving portion, and wherein the tag receiving portion is separated from the spring member and the tail sleeve in a longitudinal direction of the housing. The RFID tag overlaps with only the non-metal housing and the non-metal protection sleeve in the lateral direction. As a result, it can eliminate the effect of metal materials in the fiber optic connector on the reading performance of the radio frequency identification tag.

In one embodiment, a patch cord comprises: a communications cable that includes a first conductor and a second conductor that form a first differential pair, a third conductor and a fourth conductor that form a second differential pair; a fifth conductor and a sixth conductor that form a third differential pair, a seventh conductor and an eighth conductor that form a fourth differential pair; and a plug that is attached to a first end of the communications cable, the plug comprising: a plug housing that receives the communications cable; first through eighth plug contacts that each are at least partially within the housing and that are electrically connected to the respective first through eighth conductors; and a color identification tag that has a first color pattern that is a unique identifier for the patch cord.

Systems and methods are provided for automatically detecting passive components in communications systems using radio frequency identification (RFID) tags. A coupling circuit is provided in a system between a communications network and an RFID tag. The RFID tag is associated with a passive element of a distributed antenna system (DAS). The coupling circuit can allow an RFID signal received from an RFID transmitter over the communications network to be transported to the RFID tag. The coupling circuit can substantially prevent mobile communication signals on the communications network from being transported to the RFID tag.

One embodiment is directed to a method of reading RFID tags in an interconnection system comprising at least one port. The method comprises initiating a localized read transaction to read any RFID tag attached to a first connector and any RFID tag attached to a second connector inserted into the port. The method further comprises, as a part of the localized read transaction, reading any RFID tag configured to respond to a first type of RFID interrogation signal, wherein the first connector comprises an attached RFID tag that is configured to respond to the first type of RFID interrogation signal; and, as a part of the localized read transaction, reading any RFID tag configured to respond to a second type of RFID interrogation signal, wherein the second connector comprises an attached RFID tag that is configured to respond to the second type of RFID interrogation signal. Other embodiments are disclosed.

A connector plug arrangement (330, 600, 700) includes a connector body (334, 610, 720); and an indication component (335, 650, 750). The indication component (335, 650, 750) includes a first portion (337, 653, 751) that is disposed at a rear end of the connector body and a second portion (339, 654, 753) that extends outwardly from the first portion (337, 653, 751). The first portion (337, 653, 751) is configured to extend along a circumferential perimeter of the connector body (334, 610, 720). The second portion (339, 654, 753) is configured to extend along the longitudinal axis of the connector body (334, 610, 720).

Port occupancy can be detected by positioning signal responders on shutters disposed at the ports. The signal responders are detectable when the shutters are undeflected (i.e., the respective ports are available). The signal responders are not detectable when the shutters are deflected (i.e., the respective ports are occupied). The signal responders may include RFID tags. Each shutter having a corresponding signal responder may span more than one port.

Each of the opposite ends of a patch cord carries a connector (20), wherein the identifier device (ID) has a body (30) in a U shape, having a basic leg (31) to be seated against an upper face (21) of the connector (20) and provided with an outwardly facing housing (33) and with at least one projection (34) facing inwardly of the body (30) and to be fitted inside of a crimping cavity (25) of the connector (20), the body (30) further having two side legs (32) than can be seated against respective opposite side faces (22) of the connector (20) and incorporating an inner end tooth (35) to be seated against the lower face (23) of the connector (20); an identifier tag (40) positioned on the housing (33); and a cover (50) closing the housing (33) and retaining the identifier tag (40) within the latter.

Systems and methods are provided for automatically detecting passive components in communications systems using radio frequency identification (RFID) tags. A coupling circuit is provided in a system between a communications network and an RFID tag. The RFID tag is associated with a passive element of a distributed antenna system (DAS). The coupling circuit can allow an RFID signal received from an RFID transmitter over the communications network to be transported to the RFID tag. The coupling circuit can substantially prevent mobile communication signals on the communications network from being transported to the RFID tag.