Network tap with interface for connecting to pluggable optoelectronic module
View Patent ↗A network TAP that provides access to data communicated in a network. The TAP includes a first port for connecting to a pluggable optoelectronic module such as an optical transceiver, a link port for connecting to an optical link configured to receive and send data to the optical transceiver, and a TAP port for relaying diverted optical data to a storage and/or analyzing device. Couplers are used to split the optical signals entering the TAP from the first port and/or the link port such that a useable portion of the optical signal(s) can be stored and/or analyzed. The TAP also includes optical devices for relaying optical signals between components in the TAP.
1. A network TAP that provides access to data communicated in a network, comprising:
a transceiver port configured to be connected to an optical transceiver module, wherein the transceiver port comprises a first interface for receiving outgoing signals from a transmitter optical subassembly of the optical transceiver module and a second interface for passing incoming signals to a receiver optical subassembly of the optical transceiver module;
a link port configured to interface with a network link that is in communication with the optical transceiver module, wherein at least one optical path is configured to relay optical signals between the transceiver port and the link port;
at least one coupler in the optical path for splitting the optical signals such that a portion of the optical signals is directed to a TAP port; and
the TAP port, wherein the TAP port is configured to relay a portion of the optical signals received at the transceiver port and a portion of the optical signals received at the link port to a connected device, wherein the at least one optical path comprises:
a first optical conductor for relaying outgoing optical signals from the transmitter optical subassembly to a first optical fiber of the network link; and
a second optical conductor for relaying incoming optical signals from a second optical fiber of the network link to the receiver optical subassembly; and the at least one coupler comprises:
a first coupler for splitting off a portion of the outgoing optical signals relayed on the first optical conductor and directing the split portion of the outgoing optical signals to the TAP port, wherein the split portion contains the same data as the outgoing optical signal relayed on the first optical conductor; and
a second coupler for splitting off a portion of the incoming optical signals relayed on the second optical conductor and directing the split portion of the incoming optical signals to the TAP port, wherein the split portion contains the same data as the incoming optical signal relayed on the second optical conductor.
2. The network TAP as defined in claim 1 , wherein the first coupler diverts thirty percent of the optical power of the outgoing optical signals to the TAP port.
3. The network TAP as defined in claim 1 , wherein the transceiver port and the link port are compatible with SFP standards.
4. A network TAP that provides access to data communicated in a network, comprising:
a transceiver port configured to be connected directly to an SFP optical transceiver module, including a first transceiver interface for receiving outgoing signals from a transmitter optical subassembly of the optical transceiver module and a second transceiver interface for passing incoming signals to a receiver optical subassembly of the optical transceiver module;
a link port that interfaces with a network link that is in communication with the optical transceiver module, including a first link interface for connecting to a first optical cable carrying incoming signals and a second link interface for connecting to a second optical cable carrying outgoing signals;
a TAP port that is configured for relaying optical signals to a connected device;
a first optical path between the first transceiver interface and the second link interface;
a first coupler for splitting the optical signals transmitted on the first optical path such that a split portion of the optical signals are relayed on a third optical path to the TAP port, wherein the split portion relayed on the third optical path is a copy of the optical signals transmitted on the first optical path;
a second optical path between the second transceiver interface and the first link interface; and
a second coupler for splitting the optical signals transmitted on the second optical path such that a split portion of the optical signals are relayed on a fourth optical path to the TAP port, wherein the split portion relayed on the fourth optical path is a copy of the optical signals transmitted on the second optical path.
5. The network TAP as defined in claim 4 , wherein the optical signals relayed on the third optical path have thirty percent of the optical power of the optical signals entering the first coupler.
6. The network TAP as defined in claim 4 , wherein the link port and the TAP port are configured side by side.
7. The network TAP as defined in claim 4 , wherein the link port and the TAP port are configured vertically with respect to one another.
8. The network TAP as defined in claim 4 , wherein the network TAP is connected to the optical transceiver module in a manner such that the network TAP is an integral component of the optical transceiver module.