CN217588064U - Universal serial server - Google Patents
Universal serial server Download PDFInfo
- Publication number
- CN217588064U CN217588064U CN202221595669.6U CN202221595669U CN217588064U CN 217588064 U CN217588064 U CN 217588064U CN 202221595669 U CN202221595669 U CN 202221595669U CN 217588064 U CN217588064 U CN 217588064U
- Authority
- CN
- China
- Prior art keywords
- fuse
- transceiver
- terminal
- interface circuit
- control unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Communication Control (AREA)
Abstract
The utility model relates to a serial port server technical field, general type serial port server is proposed, including a plurality of first interface circuit, first interface circuit includes transceiver U1, fuse F2, resistance R1, resistance R3, transient state diode T1 and transient state diode T2, transceiver U1 first input passes through fuse F2 and regards as first interface circuit's first input, fuse F2 passes through transient state diode T1 ground connection, transceiver U1 second input passes through fuse F1 and regards as first interface circuit second input, fuse F1 passes through transient state diode T2 ground connection, transceiver U1's signal transmission end connection control unit's signal reception end, transceiver U1's signal reception end connection control unit's signal transmission end, through above-mentioned technical scheme, serial port server collection data singleness among the prior art has been solved, can not accomplish the multi-parameter collection, the less problem of collection port.
Description
Technical Field
The utility model relates to a serial port server technical field, it is specific, relate to general type serial port server.
Background
The serial server is a device for converting serial signals and network signals into each other. The serial port data are converted into network data in the hardware of the serial port server, the network data are transmitted to serial port server management software on a far-end host through a network link, and then the network data are converted into virtual serial port data.
SUMMERY OF THE UTILITY MODEL
The utility model provides a general type serial port server has solved serial port server data collection single among the prior art, can not accomplish multi-parameter collection, gathers the less problem of port.
The technical scheme of the utility model as follows:
general type serial port server, including control unit, power supply circuit, network circuit and a plurality of first interface circuit, power supply circuit be used for to the control unit first interface circuit with network circuit provides operating voltage, the control unit passes through network circuit and remote terminal communication, the control unit passes through first interface circuit connects outside serial port equipment, first interface circuit includes transceiver U1, fuse F2, resistance R1, resistance R3, transient state diode T1 and transient state diode T2, transceiver U1 first input end is connected fuse F2's first end, fuse F2's second end is as first interface circuit's first input end, fuse F2's second end passes through resistance R3 connects the 5V power, fuse F2's second end is connected the first end of transient state diode T2, transient state diode T1's second end ground connection, transceiver U1 second input end connects fuse F1's first end, fuse F1's second end is as the second end of second fuse F1's the first end of transient state diode T2's the ground connection the receiving terminal the fuse F1 signal connection the receiving terminal the fuse signal receiving terminal the signal unit is connected the ground connection of the fuse U1 of receiving terminal the fuse T1, the receiving terminal is connected the signal receiving terminal.
Further, the utility model discloses in still include second interface circuit, second interface circuit includes transceiver U3, fuse F4, resistance R5, transient diode T3 and transient diode T4, transceiver U3 first input end is connected fuse F4's first end, fuse F4's second end is as second interface circuit first input end, fuse F4's second end passes through resistance R5 connects the 5V power, fuse F4's second end is connected transient diode T4's first end, transient diode T4's second end ground connection, transceiver U3 second input end is connected fuse F3's first end, fuse F3's second end is as second interface circuit's second input end, fuse F3's second end passes through resistance R4 ground connection, fuse F3's second end is connected transient diode T3's first end, transient diode T3's second end ground connection, the signal connection of transceiver U3's second end, the signal connection of transceiver U3 the receiving terminal of signal control unit the receiving terminal, the signal control unit of transmitting terminal signal connection U3.
Further, the utility model discloses in still include third interface circuit, third interface circuit includes transceiver U5, transceiver U5's first signal receiving terminal does third interface circuit's input, transceiver U5's first signal transmitting terminal does third interface circuit's output, transceiver U5's second signal receiving terminal connects the control unit's signal transmitting terminal, transceiver U5's second signal transmitting terminal connects the control unit's signal receiving terminal.
Further, the utility model discloses in still include the AND gate circuit, the AND gate circuit is established ties first interface circuit second interface circuit with third interface circuit's signal reception end with between the signal transmission end of the control unit, the AND gate circuit includes logic processor U6, logic processor U6's input 1A is connected transceiver U1's signal transmission end, logic processor U6's input 1B is connected transceiver U3's signal transmission end, logic processor U6's first output 1Y is connected logic processor U6's input 2A, logic processor U6's input 2B is connected transceiver U5's second signal transmission end, logic processor U6's second output 2Y is connected the receiving end of the control unit.
Further, in the utility model discloses in the network circuit includes network transformer TS1 and network interface RJ45, network transformer TS 1's input is connected network interface RJ45, network transformer TS 1's output is connected the control unit.
The utility model discloses a theory of operation and beneficial effect do:
the utility model discloses in, serial port server system realizes the conversion and the transmission of the communication data between serial port link and the terminal, and first interface circuit is used for with outside serial ports information connection, through network circuit, uses serial ports connection ethernet server, gives system terminal with data transmission, can overcome serial ports communication transmission distance and speed restriction problem, and power supply circuit is used for exporting different, stable voltage to the control unit, first interface circuit and network circuit power supply. In order to meet the requirements of different scenes, the first interface circuit can be composed of a plurality of branches with the same circuit structure, the utility model discloses in, the first interface circuit includes two branches with the same circuit structure, a MAX13487 chip is selected in any branch as a transceiver U1, the MAX13487 chip is used for transmitting RS485 serial signals, the first interface circuit is connected with external RS485 serial equipment through the A1 and B1 wiring ends at the right end, the RO end and the DI of the MAX13487 chip are connected with the control unit for data transmission; in the circuit operation process, if the current is abnormal, the fuse F1 and the fuse F2 can be fused, so that the circuit is protected; the transient diode T1 and the transient diode T2 can suppress a high pulse instantaneously appearing in the circuit, so that the high pulse instantaneously appearing is prevented from impacting and passing through a circuit element.
The utility model discloses in, through setting up many interface branches to satisfy different scene demands, solved serial server data collection singleness, can not accomplish multi-parameter collection, gather the less problem of port.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a circuit diagram of a first interface circuit according to the present invention;
fig. 2 is a circuit diagram of a second interface circuit according to the present invention;
fig. 3 is a circuit diagram of a third interface circuit according to the present invention;
fig. 4 is a circuit diagram of the and gate circuit of the present invention;
fig. 5 is a circuit diagram of the network circuit according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive work, are related to the scope of protection of the present invention.
Example 1
As shown in fig. 1, this embodiment provides a universal serial server, including a control unit, a power supply circuit, a network circuit and a plurality of first interface circuits, the power supply circuit is configured to provide operating voltage to the control unit, the first interface circuits and the network circuit, the control unit communicates with a remote terminal through the network circuit, the control unit connects an external serial device through the first interface circuit, the first interface circuit includes a transceiver U1, a fuse F2, a resistor R1, a resistor R3, a transient diode T1 and a transient diode T2, the first end of the fuse F2 is connected to the first input end of the transceiver U1, the second end of the fuse F2 is used as the first input end of the first interface circuit, the second end of the fuse F2 is connected to a 5V power supply through a resistor R3, the second end of the fuse F2 is connected to the first end of the transient diode T2, the second end of the transient diode T1 is grounded, the second end of the transceiver U1 is connected to the first end of the fuse F1, the second end of the fuse F1 is used as the second input end of the first interface circuit, the second end of the fuse F1 is connected to a ground terminal of the transient diode T2, the transceiver U1 is connected to the ground terminal of the transceiver U1, the transceiver unit, the transceiver is connected to the ground signal of the transceiver unit, the transceiver U2, the transceiver is connected to the transceiver U1, the transceiver unit.
The serial port server system realizes the conversion and transmission of communication data between a serial port link and a terminal, the control unit comprises a plurality of serial port signal receiving ports, the first interface circuit is used for being connected with external serial port information, the communication technology is developed efficiently and continuously and becomes a social hot technology, the serial port is connected with the Ethernet server through the network circuit to transmit the data to the system terminal, the problems of limitation of serial port communication transmission distance and speed can be overcome, and the power supply circuit is used for outputting different and stable voltages to supply power to the control unit, the first interface circuit and the network circuit.
In order to meet the requirements of different scenes, a first interface circuit can be composed of a plurality of branches with the same circuit structure, in this embodiment, the first interface circuit comprises two branches with the same circuit structure, a MAX13487 chip is selected as a transceiver U1 in any branch, the MAX13487 chip is used for transmitting RS485 serial port signals, as shown in FIG. 1, the first interface circuit is connected with external RS485 serial port equipment through A1 and B1 wiring terminals at the right end, and an RO end and a DI end of the MAX13487 chip are connected with a control unit for data transmission; in the circuit operation process, if the current is abnormal, the fuse F1 and the fuse F2 can be fused, so that the circuit is protected; the transient diode T1 and the transient diode T2 can suppress a high pulse instantaneously appearing in the circuit, so as to prevent the high pulse instantaneously appearing from impacting and passing through a circuit element. The other branch is the same as the above and will not be described herein.
As shown in fig. 2, the present embodiment further includes a second interface circuit, the second interface circuit includes a transceiver U3, a fuse F4, a resistor R5, a transient diode T3, and a transient diode T4, a first input end of the transceiver U3 is connected to a first end of the fuse F4, a second end of the fuse F4 is used as a first input end of the second interface circuit, a second end of the fuse F4 is connected to the 5V power supply through the resistor R5, a second end of the fuse F4 is connected to a first end of the transient diode T4, a second end of the transient diode T4 is grounded, a second input end of the transceiver U3 is connected to the first end of the fuse F3, a second end of the fuse F3 is used as a second input end of the second interface circuit, a second end of the fuse F3 is grounded through the resistor R4, a second end of the fuse F3 is connected to the first end of the transient diode T3, a second end of the transient diode T3 is grounded, a signal transmitting end of the transceiver U3 is connected to a signal receiving end of the control unit.
In this embodiment, the second interface circuit includes two branches with the same circuit structure, an SP485EN chip is selected as the transceiver U3, and the SP485EN chip is used to transmit RS422 serial signals, as shown in fig. 2, the second interface circuit is connected to an external RS422 serial device through Z1 and Y1 terminals at the right end, and an RO terminal and a DI terminal of the SP485EN chip are connected to the control unit for data transmission; in the circuit operation process, if the current is abnormal, the fuse F3 and the fuse F4 can be fused, so that the circuit is protected; the transient diode T3 and the transient diode T4 can suppress the transient high pulse in the circuit, so as to prevent the transient high pulse from impacting and passing through the circuit element. The other branch is the same as the above and will not be described herein.
As shown in fig. 3, in this embodiment, the third interface circuit further includes a transceiver U5, a first signal receiving end of the transceiver U5 is used as an input end of the third interface circuit, a first signal transmitting end of the transceiver U5 is used as an output end of the third interface circuit, a second signal receiving end of the transceiver U5 is connected to a signal transmitting end of the control unit, and a second signal transmitting end of the transceiver U5 is connected to a signal receiving end of the control unit.
In this embodiment, the third interface circuit has two paths of RS232 serial port signals, the first path selects an SP3221 chip as the transceiver U5, and the RS232 serial port signal is generated by the SP3221 chip, for example, as shown in fig. 3, the left end TXD1 and RXD1 of the SP3221 chip are connected to the control unit, the right end 232TXD1 and 232RXD1 of the SP3221 chip are used for connecting an external serial port device, and the other path is similarly not described herein again.
As shown in fig. 4, in this embodiment, the apparatus further includes an and gate circuit, the and gate circuit is connected in series between the signal receiving terminals of the first interface circuit, the second interface circuit, and the third interface circuit and the signal sending terminal of the control unit, the and gate circuit includes a logic processor U6, an input terminal 1A of the logic processor U6 is connected to the signal sending terminal of the transceiver U1, an input terminal 1B of the logic processor U6 is connected to the signal sending terminal of the transceiver U3, a first output terminal 1Y of the logic processor U6 is connected to an input terminal 2A of the logic processor U6, an input terminal 2B of the logic processor U6 is connected to the second signal sending terminal of the transceiver U5, and a second output terminal 2Y of the logic processor U6 is connected to the receiving terminal of the control unit.
In order to meet the use requirements in different field environments, in the embodiment, two paths of RS485 signals, two paths of RS422 signals and two paths of RS232 signals are provided, and since the serial port signal receiving ports of the control unit are limited, in order to save the number of serial port signal receiving ports of the control unit through an and gate circuit, one path of RS485 signal, one path of RS422 signal and one path of RS232 signal share one signal receiving port, and six paths of serial port signals can realize signal transmission with the control unit through the two serial port signal receiving ports. The logic processor U6 is internally composed of four paths of independent AND logic gates with two-end input, and the right ends 3A-4Y of the logic processor U6 are used for connecting another group.
As shown in fig. 5, the network circuit in this embodiment includes a network transformer TS1 and a network interface RJ45, an input terminal of the network transformer TS1 is connected to the network interface RJ45, and an output terminal of the network transformer TS1 is connected to the control unit.
The external serial port equipment transmits data to the control unit through the corresponding interface circuit, the control unit processes the data and then transmits the data to the network interface RJ45 through the network transformer TS1, the network interface RJ45 is used for connecting a remote terminal, and finally, the serial data is transmitted to the network data and then to a bidirectional link of the serial data; data transmission can be carried out in real time; the data connection condition can be automatically checked.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The universal serial server is characterized by comprising a control unit, a power supply circuit, a network circuit and a plurality of first interface circuits, wherein the power supply circuit is used for providing working voltage for the control unit, the first interface circuits and the network circuit, the control unit is communicated with a remote terminal through the network circuit, the control unit is connected with external serial equipment through the first interface circuits, each first interface circuit comprises a transceiver U1, a fuse F2, a resistor R1, a resistor R3, a transient diode T1 and a transient diode T2, a first input end of the transceiver U1 is connected with a first end of the fuse F2, a second end of the fuse F2 is used as a first input end of the first interface circuit, the second end of fuse F2 passes through resistance R3 connects the 5V power, the second end of fuse F2 is connected the first end of transient diode T2, the second end ground connection of transient diode T1, transceiver U1 second input is connected the first end of fuse F1, the second end of fuse F1 is as first interface circuit second input, the second end of fuse F1 passes through resistance R1 ground connection, the second end of fuse F1 is connected the first end of transient diode T2, the second end ground connection of transient diode T2, transceiver U1's signal transmission end connects the signal receiving terminal of control unit, transceiver U1's signal receiving terminal connects the signal transmission terminal of control unit.
2. The universal serial server according to claim 1, further comprising a second interface circuit, wherein the second interface circuit includes a transceiver U3, a fuse F4, a resistor R5, a transient diode T3, and a transient diode T4, a first input end of the transceiver U3 is connected to a first end of the fuse F4, a second end of the fuse F4 is used as a first input end of the second interface circuit, a second end of the fuse F4 is connected to a 5V power supply through the resistor R5, a second end of the fuse F4 is connected to a first end of the transient diode T4, a second end of the transient diode T4 is grounded, a second input end of the transceiver U3 is connected to the first end of the fuse F3, a second end of the fuse F3 is used as a second input end of the second interface circuit, a second end of the fuse F3 is grounded through the resistor R4, a second end of the fuse F3 is connected to the first end of the transient diode T3, a second end of the transient diode T3 is connected to a ground, and a receiving end of the transceiver U3 is connected to the signal receiving end of the transceiver control unit.
3. The universal serial server according to claim 2, further comprising a third interface circuit, wherein the third interface circuit includes a transceiver U5, a first signal receiving terminal of the transceiver U5 is used as an input terminal of the third interface circuit, a first signal transmitting terminal of the transceiver U5 is used as an output terminal of the third interface circuit, a second signal receiving terminal of the transceiver U5 is connected to the signal transmitting terminal of the control unit, and a second signal transmitting terminal of the transceiver U5 is connected to the signal receiving terminal of the control unit.
4. The universal serial server according to claim 3, further comprising an and gate circuit, wherein the and gate circuit is connected in series between the signal receiving terminals of the first interface circuit, the second interface circuit, and the third interface circuit and the signal sending terminal of the control unit, the and gate circuit includes a logic processor U6, an input terminal 1A of the logic processor U6 is connected to the signal sending terminal of the transceiver U1, an input terminal 1B of the logic processor U6 is connected to the signal sending terminal of the transceiver U3, a first output terminal 1Y of the logic processor U6 is connected to an input terminal 2A of the logic processor U6, an input terminal 2B of the logic processor U6 is connected to the second signal sending terminal of the transceiver U5, and a second output terminal 2Y of the logic processor U6 is connected to the receiving terminal of the control unit.
5. The universal serial server according to claim 1, wherein the network circuit includes a network transformer TS1 and a network interface RJ45, an input terminal of the network transformer TS1 is connected to the network interface RJ45, and an output terminal of the network transformer TS1 is connected to the control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221595669.6U CN217588064U (en) | 2022-06-24 | 2022-06-24 | Universal serial server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221595669.6U CN217588064U (en) | 2022-06-24 | 2022-06-24 | Universal serial server |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217588064U true CN217588064U (en) | 2022-10-14 |
Family
ID=83531842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221595669.6U Active CN217588064U (en) | 2022-06-24 | 2022-06-24 | Universal serial server |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217588064U (en) |
-
2022
- 2022-06-24 CN CN202221595669.6U patent/CN217588064U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8481911B2 (en) | System and method for connecting electrical devices using fiber optic serial communication | |
| CN112019457B (en) | High-speed switching device based on localization SRIO | |
| CN201118630Y (en) | A non-polarity two-core communication bus receiver/transmitter for photoelectrical separation | |
| CN112865880B (en) | System and method for one-way data transmission through optical port | |
| CN104753597A (en) | Access method and system for passive beam splitting RS-485 optical fiber bus | |
| CN107908584B (en) | Multi-path RS-485 communication network | |
| CN105515927A (en) | Remote serial port communication system and method based on Ethernet Cat.5 wiring framework | |
| CN217588064U (en) | Universal serial server | |
| CN112260760B (en) | Nuclear power plant distributed control system field bus system based on optical loop | |
| CN109600288A (en) | The isolation circuit and electronic control unit of controller local area network's CAN signal | |
| CN106452572B (en) | Traction substation is comprehensive from optical transceiver failure positioning system and its Fault Locating Method | |
| CN202904571U (en) | Controller area network (CAN) bus interface circuit with electric isolation function | |
| CN104753598A (en) | Communication method for passive beam splitting RS-485 optical fiber bus | |
| CN108616292A (en) | Communication circuit, communication method thereof, controller and electric equipment | |
| CN108566243A (en) | A kind of optical interface 1+1 protection isolated form multi-service Ethernet optical transmitter and receiver based on FPGA | |
| CN209447019U (en) | RS485 equipment connects circuit and system | |
| CN220292053U (en) | Circuit and system for realizing USB transfer management network port based on RTL8153B | |
| CN101404582B (en) | Management signal transmitting/receiving method and apparatus, Ethernet power supply unit and system | |
| CN220935198U (en) | CAN communication circuit and CAN communication system with optical coupling isolation | |
| CN116701286B (en) | On-line switching system for RS485 communication | |
| CN113849437B (en) | Communication interface device | |
| CN207835494U (en) | Communication protocol conversion device in a kind of wind power generating set | |
| CN216697257U (en) | Single-wire asynchronous serial communication circuit realized by photoelectric coupler | |
| CN218897224U (en) | Investigation array module | |
| CN203416280U (en) | Elevator controller CAN communication interface device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |