CN2550968Y

CN2550968Y - Multiple channel comprehensive monitor

Info

Publication number: CN2550968Y
Application number: CN02240729U
Authority: CN
Inventors: 韩惠良; 韦国英
Original assignee: No2 Artillery Communication Network Technology Management Centre Pla
Current assignee: No2 Artillery Communication Network Technology Management Centre Pla
Priority date: 2002-07-17
Filing date: 2002-07-17
Publication date: 2003-05-14
Anticipated expiration: 2012-07-17

Abstract

The utility model relates to a multi-channel integrated monitor, belonging to the information communication filed, mainly comprising a casing, a panel, a function adjusting key, an electronic circuit board arranged in the casing, which is characterized in that: a function key and a selecting key for device control, adjusting and switching are arranged on the front panel of the casing; multi-channel connecting end holes are arranged on the back panel; six circuit members of the multi-channel integral monitor are arranged on the internal circuit board of the casing; a CPU chip circuit is the center of the six members, which are connected with a monitoring modular circuit for error warning, a time slot switching circuit, a 2 M channel frame synchronous processing circuit, a serial port communication circuit for accepting the remote microcomputer control, and a keyboard/LCD display circuit. The utility model has the advantages of application for any optical fiber communication equipment, responsibility for daily multi-channel on-line monitoring, and real-time monitoring for the transmission channels in multiple directions.

Description

The multichannel synthesis monitoring instrument

Technical field

The utility model belongs to the information communication field, specially refers under the multichannel situation, and whether normally inspection message transmits net a kind of multichannel comprehensively monitoring instrument of operation.

Background technology

In order to adapt to the high speed development of information requirement, reach high quality information communication, top priority is to ensure information transmission platform---transmit the normal operation of net, for now, the foundation that transmits net mainly is a fiber optic communication network, in optical fiber telecommunications system, no matter be traditional PDH (plesiochronous digital) equipment, still advanced SDH (synchronous digital) equipment, or present popular WDM (wavelength division multiplexing), DXC (digital crossover connection) equipment, the base unit of communication channel all is 2Mb/s, the digital code stream of two-forty all is to be composited by a plurality of 2Mb/s, 2Mb/s is a present telecommunication transmission system interface rate grade the most widely, and the test of 2Mb/s and scheduling are the most frequent Maintenance Significant Items of optical fiber communication.Important circuit is carried out the real-time performance monitoring, writing circuit ruuning situation, be to guarantee the unimpeded key factor of the high link communication of importance, on the current market, the measuring instrument of single 2Mb/s interface emerges in an endless stream, but the product that can finish a plurality of online (being non-interrupting service) test simultaneously and dispatch automatically, there is no on the domestic and international market at present, at present, optical fiber communication 2Mb/s circuit test and circuit allocation also still rest on the artificial means that break down---test---switch, for the circuit of striding a plurality of transmission systems, the quality of circuit quality and active and standby switching with circuit, the time sex-limited gap that requires from communication is too big, therefore, for satisfying the following operation needs of current great task communication guarantee and army's manoeuvre, developing a kind of equipment that can finish multichannel on-line testing and automatic scheduling feature has been extremely urgent, our unit is through the use research of optical transmission device for many years, use on the successful basis at single 2Mb/s channel on-line testing product, further grasped series of key techniques on the Interface Matching of on-line testing of a plurality of 2Mb/s channel and auto switching again, develop a kind of multichannel 2Mb/s circuit automatic monitoring instrument device of small inexpensive, safeguard for optical fiber communication, more reliable guarantee is provided.

Summary of the invention

The utility model technical issues that need to address are, in prior art, the product that has only the on-line testing of single 2Mb/s channel and dispatch automatically, and there are not to finish simultaneously the 2Mb/s on-line testing of a plurality of channels and the monitoring equipment of auto switching, for remedying this weak point, developed a kind of multichannel synthesis monitoring instrument and relate to again, the purpose of this utility model, realize by the following technical solutions, a kind of multichannel synthesis monitoring instrument, mainly comprise casing, panel, the function adjusting key, be contained in the electronic circuit board in the casing, it is characterized in that, the function key and the options button that have Equipment Control to regulate and switch on the casing front panel; Rear board is provided with the connection stomidium of a plurality of channels, the casing internal circuit board is provided with six circuit parts of multichannel comprehensive monitor, they are the center with the cpu chip circuit, are connected with error code alarm-monitor modular circuit, Time Slot Switching Circuit, 2M channel frame synchronous processing circuit, accept serial communication circuit and keyboard/LCD display circuit that remote microcomputer is controlled.Described multichannel, be meant and can be simultaneously the 2Mb channel of 16 (also can be 8) directions be carried out on-line monitoring, function key on the described front panel, comprise that switching of left side allows key, master/slave arrangement key, Long-distance Control key, and the options button on right side, beginning/stop key, setting/check key, reset key.Described casing, its volume is no more than 180 * 280 * 60mm ³, its weight is less than 3kg.The interface of this instrument adopts BNC unbalanced interface and standard 25 pin LPTs, 9 pin RS-232 serial ports and 9 pin external VGA interfaces.

The beneficial effects of the utility model are, this monitor is applicable to any optical-fibre communications equipment, particularly through the transmission channel of a plurality of Networks of Fiber Communications, particularly suitable to teleconference circuit and commander's private wire circuit, it both can undertake the on-line testing work of daily a plurality of channels, long-term monitoring in real time can be carried out again to the transmission channel of a plurality of important directions, and the auto switching of 2Mb/s circuit can be carried out by actual requirement.

Description of drawings

Fig. 1 is this monitor front panel

Fig. 2 is this monitor rear board

Fig. 3 is each function key position, front panel left side

Fig. 4 is each function key position, front panel right side

Fig. 5 is the contained circuit each several part relation of this multichannel synthesis monitoring instrument

Fig. 6 is multichannel (8 2M) monitoring and negater circuit schematic diagram

Fig. 7 be above-mentioned shown in the electrical schematic diagram of circuit.

Embodiment

With reference to the front panel 1 and the rear board 2 of Fig. 1,2 these multichannel synthesis monitoring instruments of expression, with reference to Fig. 3,4, the front panel left side is furnished with function key, and they are to switch to allow key 1-1, master/slave arrangement key 1-2, Long-distance Control key 1-3; The right side is furnished with options button 1-4, and beginning/stop key 1-5 is provided with/checks key 1-6, reset key 1-7; With reference to Fig. 5, represent the contained circuit idiotopy of this multichannel synthesis monitoring instrument, overall circuit 3, it comprises six parts, they are cpu chip circuit 3-1, error code alarm-monitor modular circuit 3-2, Time Slot Switching Circuit 3-3,2M channel frame synchronous processing circuit 3-4, serial communication interface circuit 3-5 and keyboard/LCD display circuit 3-6 is with reference to Fig. 6, Fig. 7, expression channel (8 2M) monitoring and automatic switching circuit signal and electrical schematic diagram, the enforcement of this circuit can make when link occurs fault or decreased performance during to threshold value, automatically according to priority and the route that presets in 100 milliseconds, finish and switch, guarantee that high priority link is unimpeded.

Claims

1, a kind of multichannel synthesis monitoring instrument mainly comprises casing, panel, function adjusting key, is contained in the electronic circuit board in the casing, it is characterized in that the function key and the options button that have Equipment Control to regulate and switch on the casing front panel; Rear board is provided with the connection stomidium of a plurality of channels, the casing internal circuit board is provided with six circuit parts of multichannel comprehensive monitor, they are the center with the cpu chip circuit, are connected with error code alarm-monitor modular circuit, Time Slot Switching Circuit, 2M channel frame synchronous processing circuit, accept serial communication circuit and keyboard/LCD display circuit that remote microcomputer is controlled.

2, synthesis monitoring instrument according to claim 1 is characterized in that, described multichannel, be meant can be simultaneously also can be that the 2Mb channel of 8 directions carries out on-line monitoring to 16.

3, synthesis monitoring instrument according to claim 1, it is characterized in that, function key on the described front panel comprises that switching of left side allows key, master/slave arrangement key, Long-distance Control key, and the options button on right side, beginning/stop key, setting/check key, reset key.

4, synthesis monitoring instrument according to claim 1 is characterized in that, described casing, and its volume is no more than 180 * 280 * 60mm ³, its weight is less than 3kg.

5, synthesis monitoring instrument according to claim 1 is characterized in that, the interface of this instrument adopts BNC unbalanced interface and standard 25 pin LPTs, 9 pin RS-232 serial ports and 9 pin external VGA interfaces.