Serial-to-ethernet conversion port

• US 7,018,242 B2
• Filed: 02/17/2005
• Issued: 03/28/2006
• Est. Priority Date: 04/15/2002
• Status: Expired due to Term

• Current Assignee: Lantronix Incorporated
• Original Assignee: Lantronix Incorporated
• Inventors: Brown, Curtis D., Brower, Charles J.
• Primary Examiner(s): Prasad, Chandrika
• Application Number:
  US11/060,664
• Publication Number:
  US 20050136731A1
• Time in Patent Office: 404 Days
• Field of Search: 439/676, 439/609, 439/76.1
• US Class Current: 439/676
• CPC Class Codes: H01R 13/6658 on printed circuit board H01R13/6666 - H01R13/6691 take precedence
• CPC Class Codes: H01R 13/6691 with built-in signalling means H01R13/717 takes precedence
• CPC Class Codes: H01R 2201/04 for network, e.g. LAN connectors
• CPC Class Codes: H01R 24/64 for high frequency, e.g. RJ 45
• CPC Class Codes: H01R 31/06 Intermediate parts for linking two coupling parts, e.g. adapter with a holder adapted for supporting apparatus to which its counterpart is attached H01R33/94
• CPC Class Codes: H05K 1/144 Stacked arrangements of planar printed circuit boards

Abstract

The present invention relates to a serial-to-Ethernet modular converter jack and a method of fabricating of the same. The serial-to-Ethernet converter electronic components, including the control software stored in on-board memory, are miniaturized and housed entirely in an RJ-45 jack. The present invention is constructed of a shielded housing that defines an open front portion for a connector port. The housing of the present invention also includes a segregated interior chamber, which encases all of the electrical components necessary to complete a serial-to-Ethernet conversion of data. Lead pins electrically connected to the circuitry within the interior chamber, protrude from the based of the connector jack providing for a means to mate the jack to a circuit board. First, second and third circuit boards collectively incorporate the serial-to-Ethernet circuitry components. Both the first circuit board incorporating magnetic circuitry and the second circuit board incorporating control circuitry are positioned in generally horizontal parallel relation within the interior chamber. The second circuit board which defines opposed sides includes electronic components disposed upon the upper and lower of both sides of the second circuit board. The third circuit board, incorporating connections to the LEDs, is positioned generally perpendicular in relation to the first and second circuit boards and is structurally connected to the first and second circuit boards, additionally providing an electrical connection between the first and second boards. Alternative embodiments of the invention are disclosed and include various arrangement of the serial-to-Ethernet circuitry within the interior chamber of the housing.

Claims

1. A module for mounting on an electronic component board, comprising:

a connector for connection to the board;

a logic circuit electronically coupled to the connector within a housing that translates between a serial protocol and an Ethernet protocol; and

an Ethernet output electronically coupled to the logic circuit.

2. The module of claim 1 wherein the Ethernet output provides a facility for wiring to an external component.

3. The module of claim 2 wherein the Ethernet output comprises a jack.

4. The module of claim 3 wherein the jack comprises an RJ 45 jack.

5. The module of claim 1 wherein the circuit is embodied in a logic chip.

6. The module of claim 5 wherein the chip is dispersed on a first miniature circuit board.

7. The module of claim 1 wherein connector and the logic circuit are disposed in the housing having a status light.

8. The module of claim 7 further comprising an isolation transformer within the housing.

9. The module of claim 8 wherein the isolation transformer is disposed on a second miniature circuit board.

10. The module of claim 1 wherein the connector comprises a plurality of pins.

11. The module of claim 1 wherein the connector comprises a plurality of connector elements.

12. The module of claim 1 wherein the serial protocol is selected from the group consisting of inter-IC control (I2C), controller area network (CAN), process field bus (ProfiBus), serial peripheral interface (SPI), and universal serial bus (USB).

13. A serial-to-Ethernet converter housed completely within a modular Ethernet jack housing for mounting on an electronic component board.

14. The converter of claim 13 further comprising a plurality of general purpose programmable input/output pins (PIO) within the housing.

15. The convener of claim 13 further comprising a memory, voltage regulators and supervisory circuits within the housing.

16. An improved device having a microprocessor with a serial I/O interface, the improvement comprising:

a modular Ethernet interface electrically coupled to the microprocessor in a housing through the serial I/O interface, and including an isolation transformer within the housing.

17. The device of claim 16 further comprising a plurality of general purpose programmable input/output pins (PIO) within the housing.

18. The converter of claim 17 further comprising a memory, voltage regulators and supervisory circuits within the housing.