CN205123706U - PTN (packet transport network) packet transport equipment - Google Patents

Abstract

A PTN packet transmission device, the circuit structure of the device includes a key coding circuit, a control circuit, an optical interface circuit and an electrical interface circuit, and a first detection module circuit for detecting the type of the interface is added to the optical interface circuit. A second detection module circuit for detecting the interface type is added to the electrical interface circuit, an interface type switching circuit is added, and the input end of the first detection module circuit is connected to the optical interface circuit. Since the embodiment of the utility model is realized on the basis of the existing hardware equipment, no additional cost is added, and the cost of the software is not greatly increased, but it effectively achieves the purpose of flexibly providing the photoelectric interface of the equipment, and adapts to the photoelectric interface of the engineering site. The randomness requirement of the number of interfaces.

Description

A PTN packet transmission device

technical field

The utility model belongs to the technical field of communication, and relates to a PTN packet transmission device.

Background technique

At present, in order to meet the requirements of transmission, PTN equipment needs to provide two types of interfaces: optical port and electrical port at the same time, so as to meet the access needs of both optical and electrical access methods. The practice of existing PTN equipment is to use two PHY (physical layer, that is, physical interface transceiver) chips to provide optical ports and electrical ports respectively, or to use a PHY chip with photoelectric properties at the same time, and to provide optical ports through software photoelectric switching. mouth and electric mouth. Existing designs and equipment do not fully consider that the demand for optical and electrical interfaces for interconnection with other equipment is uncertain. Due to this uncertainty, the optical and electrical interfaces with fixed configurations cannot meet the interface randomization problem in practical applications, resulting in Interface resources are wasted.

Utility model content

In order to overcome the defects of the prior art, the utility model designs a PTN packet transmission device.

The technical scheme of the utility model is a PTN packet transmission device, the circuit structure of which includes a key coding circuit, a control circuit, an optical interface circuit and an electrical interface circuit, the key lies in: adding a detection device to the optical interface circuit The first detection module circuit of the interface type, the second detection module circuit of the detection interface type is added to the electrical interface circuit, the interface type switching circuit is added, the input end of the first detection module circuit is connected with the optical interface circuit, the second The output end of the first detection module circuit is connected to the control circuit, the input end of the second detection module circuit is connected to the electrical interface circuit, the output end of the second detection module circuit is connected to the control circuit, and the output end of the control circuit is connected to the interface type The switching circuit realizes switching between the optical interface circuit and the electrical interface circuit.

A crystal oscillator module circuit is also provided in the circuit structure, and the crystal oscillator module circuit is connected with the control circuit.

The circuit structure is also provided with a dedicated storage unit for storing the data detected by the first detection module circuit and the second detection module circuit, and the dedicated storage unit is connected to the control circuit.

The beneficial effect of the utility model is that not only can a plurality of photoelectric interfaces be provided on a limited equipment panel, but also the actual number of photoelectric interfaces can be automatically configured according to the needs of the site, which is convenient and flexible. Since the embodiment of the utility model is realized on the basis of the existing hardware equipment, no additional cost is added, and the cost of the software is not greatly increased, but it effectively achieves the purpose of flexibly providing the photoelectric interface of the equipment, and adapts to the photoelectric interface of the engineering site. Randomness requirements for the number of interfaces.

Description of drawings

Fig. 1 is a circuit principle block diagram of the PTN equipment of the present invention.

detailed description

A PTN packet transmission device, the circuit structure includes a key coding circuit 1, a control circuit 2, an optical interface circuit 3 and an electrical interface circuit 4, and a first detection module circuit for detecting the interface type is added to the optical interface circuit 3 5. Add the second detection module circuit 6 of the detection interface type in the electrical interface circuit 4, add the interface type switching circuit 7, the input end of the first detection module circuit 5 is connected with the optical interface circuit 3, the first detection The output end of the module circuit 5 is connected with the control circuit 2, the input end of the second detection module circuit 6 is connected with the electrical interface circuit 4, the output end of the second detection module circuit 6 is connected with the control circuit 2, and the output of the control circuit 2 The end connection interface type switching circuit 7 realizes switching between the optical interface circuit 3 and the electrical interface circuit 4 .

A crystal oscillator module circuit 8 is also provided in the circuit structure, and the crystal oscillator module circuit 8 is connected to the control circuit 2 .

The circuit structure is also provided with a dedicated storage unit 9 for storing the data detected by the first detection module circuit 5 and the second detection module circuit 6 , and the dedicated storage unit 9 is connected to the control circuit 2 .

When the utility model is implemented, the control circuit 2 automatically switches the detection task by creating and starting the photoelectric interface of the PTN equipment, and regularly detects the type of the in-position module circuit. The in-position module circuit is the optical interface circuit 3 and the electrical interface circuit 4. Collectively; according to the detected type of the in-position module, the photoelectric attribute of the in-position module is switched, and the photoelectric interface is automatically switched by means of the interface type switching circuit to meet the randomness requirements of the interface application in the actual network.

Describe preferred embodiment of the present utility model in detail below, the specific operating steps of the present utility model can comprise the following steps:

Step 301: Create a PTN equipment photoelectric interface automatic switching detection task, detect the switching of the PTN equipment photoelectric interface, and the detection time of the task can be set according to the actual performance requirements of the equipment;

Step 302: Start the photoelectric attribute switching process, and prepare to switch the photoelectric interface;

Step 303: During the automatic detection process of the photoelectric interface, it is judged whether there is a module in place for the physical interface obtained by round robin;

Step 304: Is the module present? If yes, execute step 305, otherwise go to step 303;

Step 305: Read the type of the in-position module inserted into the physical interface;

Step 306: Is the currently in-position module an ordinary optical module or an electrical module? If it is an electrical module, then perform step 307; if it is an ordinary optical module, then perform step 308;

Step 307: Configuring the attribute of the physical interface where the in-position module is located as an electrical port;

Step 308: Configure the attribute of the physical interface where the on-site module is located as an optical port.

Claims (3)

1. A kind of PTN grouping transmission equipment, comprise key coding circuit (1), control circuit (2), optical interface circuit (3) and electrical interface circuit (4) in the circuit structure of this equipment, it is characterized in that: in optical interface A first detection module circuit (5) for detecting the interface type is added in the circuit (3), and a second detection module circuit (6) for detecting the interface type is added in the electrical interface circuit (4), and the interface type is added The switching circuit (7), the input end of the first detection module circuit (5) is connected with the optical interface circuit (3), the output end of the first detection module circuit (5) is connected with the control circuit (2), and the second detection module circuit (5) is connected with the control circuit (2). The input end of the detection module circuit (6) is connected to the electrical interface circuit (4), the output end of the second detection module circuit (6) is connected to the control circuit (2), and the output end of the control circuit (2) is connected to the interface type switch The circuit (7) realizes switching between the optical interface circuit (3) and the electrical interface circuit (4). 2. A PTN packet transmission device according to claim 1, characterized in that: said circuit structure is also provided with a crystal oscillator module circuit (8), and the crystal oscillator module circuit (8) is connected to the control circuit (2). 3. A PTN packet transmission device according to claim 1, characterized in that: said circuit structure is also provided with a circuit for storing the first detection module circuit (5) and the second detection module circuit (6) A special storage unit (9) for the detected data, and the special storage unit (9) is connected with the control circuit (2).