CN217590813U

CN217590813U - 9-needle single-fiber bidirectional low-speed modulation optical module

Info

Publication number: CN217590813U
Application number: CN202221165782.0U
Authority: CN
Inventors: 李砚臣; 谢鹏; 王贺
Original assignee: Wuhan A Create Optics & Electronics Co ltd
Current assignee: Wuhan A Create Optics & Electronics Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-10-14
Anticipated expiration: 2032-05-16

Abstract

The utility model provides a two-way low-speed modulation optical module of 9 needles single fiber belongs to optical module technical field. The 9-pin single-fiber bidirectional low-speed modulation optical module comprises an optical device, wherein the optical device comprises a GNDR pin, an RD pin, an NRD pin, an SD pin, a VCCR pin, a VCCT pin, an NDT pin, a TD pin and a GNDT pin, an optical diaphragm is arranged in the optical device, the optical device replaces an original common low-speed optical module, single optical fiber full duplex and low-speed signal long-distance transmission through optical fibers are achieved, the defect that the low-speed signal is not far transmitted through the optical module is overcome, a highly integrated circuit is used, the performance is more stable to work, a TTL interface is packaged through 1 x 9, a power supply and related pins are compatible, peripheral components are saved, the power consumption of equipment is reduced, and due to the fact that the circuit is simplified, the reliability of the equipment is greatly improved, the production process is simple, the working efficiency is improved, and certain cost is saved.

Description

9-needle single-fiber bidirectional low-speed modulation optical module

Technical Field

The utility model relates to an optical module technical field particularly, relates to a 9 two-way low-speed modulation optical module of needle single fiber.

Background

At present, the transmission distance of an optical module for low-speed transmission and reception for communication is about 20km, and the application requirement of transmitting more than 40km cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to make up for the above deficiency, the utility model provides a 9 two-way low-speed modulation optical module of needle single fiber.

The utility model discloses a realize like this:

a9-pin single-fiber bidirectional low-speed modulation optical module comprises an optical device, wherein the optical device comprises a GNDR pin, an RD pin, an NRD pin, an SD pin, a VCCR pin, a VCCT pin, an NDT pin, a TD pin and a GNDT pin, and an optical diaphragm is arranged inside the optical device.

In an embodiment of the present invention, the GNDR pin is used for partial grounding, the RD pin is used for receiving partial data output, the SD pin is used for receiving partial no light warning and low level warning, the VCCR pin is used for receiving partial positive power supply, the VCCT pin is used for sending partial positive power supply, the TD pin is used for sending partial data input, and the GNDR pin is used for sending partial grounding pin.

In an embodiment of the present invention, the RD pin, the SD pin and the TD pin are TTL/LVTTL.

In an embodiment of the present invention, the VCCR pin and the positive power receiving and transmitting power of the VCCT pin are +5V/+3.3V.

In an embodiment of the present invention, the operating temperature of the optical device is between-30 ℃ and +70 ℃.

In an embodiment of the present invention, the storage temperature of the optical device is between-40 ℃ and +85 ℃.

In an embodiment of the present invention, the pin soldering temperature of the optical device is less than 260 ℃, and the soldering time is less than 10s.

The utility model has the advantages that: the utility model discloses a 9 two-way low-speed modulation optical module of needle single fiber that above-mentioned design obtained, this optical device replaces former ordinary low-speed optical module, single optic fibre full duplex can be realized to this scheme, the low-speed signal passes through optic fibre long distance transmission, overcome the low-speed signal and pass through the not distant shortcoming of optical module transmission, with highly integrated circuit, make the performance more stable work, through 1X 9 encapsulation TTL interface, power supply and relevant pin are compatible, save peripheral components and parts, the consumption of equipment reduces, because the circuit is simplified, the reliability of equipment improves greatly, the production process is simple, and the work efficiency is improved, and certain cost is saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a pin diagram of a 9-pin single-fiber bidirectional low-speed modulation optical module according to an embodiment of the present invention;

fig. 2 is a schematic diagram of technical indexes of a 9-pin single-fiber bidirectional low-speed modulation optical module according to an embodiment of the present invention;

fig. 3 is a schematic block diagram of a 9-pin single-fiber bidirectional low-speed modulation optical module according to an embodiment of the present invention.

In the figure: 100. an optical device; 1001. a GNDR foot; 1002. RD foot; 1003. an NRD pin; 1004. an SD pin; 1005. VCCR pin; 1006. VCCT pins; 1007. NDT pin; 1008. a TD pin; 1009. GNDT foot.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides a technical solution: a9-pin single-fiber bidirectional low-speed modulation optical module comprises an optical device 100.

Referring to fig. 1-3, the optical device 100 includes a GNDR pin 1001, an RD pin 1002, an NRD pin 1003, an SD pin 1004, a VCCR pin 1005, a VCCT pin 1006, an NDT pin 1007, a TD pin 1008, and a GNDT pin 1009, and an optical film is disposed inside the optical device 100.

Specifically, the structure of the optical device 100 is designed to be single-fiber bidirectional, and an optical film is put in the optical device to implement single-fiber full-duplex communication.

As an embodiment of the present invention, further, the GNDR pin 1001 is used for partial grounding, the RD pin 1002 is used for receiving partial data output, the SD pin 1004 is used for receiving partial non-light warning and low level warning, the VCCR pin 1005 is used for receiving partial positive power supply, the VCCT pin 1006 is used for sending partial positive power supply, the TD pin 1008 is used for sending partial data input, and the GNDR pin 1001 is used for sending partial grounding pin.

As an embodiment of the present invention, further, the electrical levels of the RD pin 1002, the SD pin 1004, and the TD pin 1008 are TTL/LVTTL.

As an embodiment of the present invention, further, the positive receiving power supply and the positive transmitting power supply of the VCCR pin 1005 and the VCCT pin 1006 are +5V/+3.3V.

As an embodiment of the present invention, further, the operating temperature of the optical device 100 is between-30 ℃ and +70 ℃.

As an embodiment of the present invention, further, the storage temperature of the optical device 100 is between-40 ℃ and +85 ℃.

As an embodiment of the present invention, further, the pin soldering temperature of the optical device 100 is less than 260 ℃, and the soldering time is less than 10s.

Specifically, the working principle of the 9-pin single-fiber bidirectional low-speed modulation optical module is as follows: the structure of the optical device 100 is designed to be single-fiber bidirectional, single-fiber full duplex communication is realized through an optical diaphragm inside the optical device 100, the optical device 100 integrates a modulation/demodulation circuit into an optical module to generate continuous coding signals, a low-speed signal is transmitted in a long distance through an optical signal by using a high-speed circuit optical module, and the transmission distance can reach 100km.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A9-pin single-fiber bidirectional low-speed modulation optical module is characterized by comprising,

the optical device (100) comprises a GNDR pin (1001), an RD pin (1002), an NRD pin (1003), an SD pin (1004), a VCCR pin (1005), a VCCT pin (1006), an NDT pin (1007), a TD pin (1008) and a GNDT pin (1009), and an optical film is arranged inside the optical device (100).

2. The 9-pin single-fiber bidirectional low-speed modulation optical module according to claim 1, wherein the GNDR pin (1001) is used for partially grounding, the RD pin (1002) is used for receiving partial data output, the SD pin (1004) is used for receiving partial no light warning and low level warning, the VCCR pin (1005) is used for receiving partial positive power, the VCCT pin (1006) is used for transmitting partial positive power, the TD pin (1008) is used for transmitting partial data input, and the GNDR pin (1001) is used for transmitting partial ground.

3. The 9-pin single-fiber bidirectional low-speed modulation optical module according to claim 2, wherein the levels of the RD pin (1002), the SD pin (1004) and the TD pin (1008) are TTL/LVTTL.

4. The 9-pin single-fiber bidirectional low-speed modulation optical module according to claim 2, wherein the positive receiving power supply and the positive transmitting power supply of the VCCR pin (1005) and the VCCT pin (1006) are both +5V/+3.3V.

5. The 9-pin single-fiber bidirectional low-speed modulation optical module according to claim 1, wherein the operating temperature of the optical device (100) is between-30 ℃ and +70 ℃.

6. The 9-pin single-fiber bidirectional low-speed modulation optical module according to claim 5, wherein the storage temperature of the optical device (100) is between-40 ℃ and +85 ℃.

7. The 9-pin single-fiber bidirectional low-speed modulation optical module according to claim 6, wherein a pin soldering temperature of the optical device (100) is less than 260 ℃ and a soldering time is less than 10s.