CN105391874A - Maintenance telephone system meeting use demands of domestic nuclear power plant - Google Patents
Maintenance telephone system meeting use demands of domestic nuclear power plant Download PDFInfo
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- CN105391874A CN105391874A CN201410455904.3A CN201410455904A CN105391874A CN 105391874 A CN105391874 A CN 105391874A CN 201410455904 A CN201410455904 A CN 201410455904A CN 105391874 A CN105391874 A CN 105391874A
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Abstract
The invention belongs to the technical field of nuclear power plants, and specifically relates to a maintenance telephone system meeting use demands of a domestic nuclear power plant. The system comprises a maintenance telephone system host, an emergency transfer box, wall-mounted communication sockets, a portable maintenance telephone terminal, and a cable dividing box. All subscriber lines of the maintenance telephone system host and all emergency loop lines of the emergency transfer box are connected to a wire distribution strip, and then are connected to the cable dividing box through a user cable. Each pair of subscriber lines in the cable dividing box are connected to normal mode jacks of each wall-mounted communication socket in a star-shaped manner. The emergency loop lines in the cable dividing box enable the emergency mode jacks of all wall-mounted communication sockets in the emergency loop to be connected in parallel in a bus mode through telephone lines. The portable maintenance telephone terminal is connected with the normal mode jacks or emergency mode jacks corresponding to the wall-mounted communication sockets in working modes (normal mode or emergency mode), thereby completing the connection for communication.
Description
Technical field
The invention belongs to nuclear power plant's communication technical field, be specifically related to a kind of maintenance telephone system meeting the user demand of domestic nuclear power plant.
Background technology
Less for the special product meeting domestic nuclear power plant maintenance phone at present, be all generally use sound power telephone or plain old telephone to substitute, be difficult to the actual demand meeting nuclear power plant's site examining and repairing.Although sound power telephone can off and passive use, be subject to the restriction of speech range and call function, can only among a small circle, such as apply under occasion between naval vessel, compact car etc., and point to point call can not be realized; Although plain old telephone speech range is far away, generally 5 ~ 6Km can be reached, but ordinary telephone set must rely on telephone exchange or other main process equipment to use, and needs extra distribution, once lose power supply or telephone exchange main process equipment because of after a variety of causes paralysis, ordinary telephone set just cannot use.
Summary of the invention
The object of the present invention is to provide a kind of maintenance telephone system meeting the user demand of domestic nuclear power plant, to meet the demands such as the communication distance of NPP Operations Personnel to the proposition of maintenance telephone system is long, system still can ensure work after losing external power, systemic-function is abundant.
For achieving the above object, the technical solution used in the present invention is:
Meet a maintenance telephone system for domestic nuclear power plant user demand, comprise maintenance telephone system main frame, emergent transfer box, wall call socket, Portable overhaul telephone terminal, cablehead; All subscribers feeders of maintenance telephone system main frame and each emergency loop line of emergent transfer box are connected to distribution row, by service cable, subscribers feeder and emergency loop line are connected to cablehead again, often pair of subscribers feeder in cablehead uses star fashion to be connected to the normal mode jack of each wall call socket respectively by telephone wire, and the emergency loop line in cablehead uses bus mode that the contingency mode jack of wall call sockets all in this emergency loop is carried out and connect by telephone wire; Portable overhaul telephone terminal, according to mode of operation, comprises the normal mode/normal mode jack/contingency mode jack of contingency mode connection wall call corresponding to socket and can complete connection and carry out call conversation.
Described maintenance telephone system main frame is according to onsite user's number of terminals determination host capacity, and namely can connect the number of users of maintenance telephone terminal under normal mode of operation, host capacity can be optional from 16 line to 1536 lines; Under the environment that supply of electric power is stable, maintenance telephone system may operate at normal mode of operation, has also been referred to as host mode.
Different emergency loop multi-taps is connected by one or more emergent patchcord by described emergent transfer box, realizes the switching between two or more emergency loop, and two or more pieces emergency loop is interconnected.
Described wall call socket is the interface linkage interface of maintenance telephone terminal, this wall call socket is installed in the place of using maintenance telephone terminal at each needs, containing two or more jacks in each wall call socket, wherein have 1 normal mode jack and 1 contingency mode jack at least, each normal mode jack by a pair independently telecommunication cable be finally connected to the subscriber line circuit of maintenance telephone system main frame, all contingency mode jacks under an emergency loop are finally connected to the corresponding circuit socket of emergent transfer box afterwards by a pair telecommunication cable parallel connection, whole system can use multiple emergency loop according to by the site environment of repair apparatus, use one or more emergent patchcord two or more emergency loop can be interconnected by emergent transfer box, realize the calling between different emergency loop and communication.
Described Portable overhaul telephone terminal is the terminal equipment of whole maintenance telephone system, this terminal can be operated in normal mode or contingency mode according to site specific, can be used in normal mode when overhauling telephone system host power supply stable and on-the-spot needs and be connected to normal mode jack during independent call between multipair maintenance telephone terminal; When main frame because this terminal when power-off or other a variety of causes cisco unity malfunctions can work in contingency mode and be connected to contingency mode jack, detachment system main frame is set up with other Portable overhaul telephone terminal and is communicated.
Described maintenance telephone system main frame comprises double copies stabilized voltage power supply, main frame frame, maintenance terminal, distribution row, mainframe;
Double copies stabilized voltage power supply output-48V DC power supply is connected to main frame frame by power line and is responsible for powering to circuit board each in main frame frame; Data communication set up by maintenance terminal usage data line and main frame frame, to monitor operational state of mainframe or to arrange maintenance to main frame; Each subscribers feeder is connected to distribution row by office cable by main frame frame; Double copies stabilized voltage power supply, main frame frame, maintenance terminal, distribution row, emergent transfer box are installed in mainframe;
Main frame frame: be motherboard subrack structure, all kinds of required circuit board is directly inserted in corresponding slot, and dissimilar circuit board has misplug-proof structure, prevents wrong plug slot from damaging circuit board;
Maintenance terminal: the correlation function for overhauling telephone system main frame is arranged and systems axiol-ogy is safeguarded;
Emergent transfer box: across the interconnecting device of the maintenance telephone terminal call conversation under loop and other emergency loop during for overhauling under telephone terminal emergency pattern;
Distribution is arranged: the distribution for each user under normal mode connects, the distribution connection of each emergency loop and over-current over-voltage protection under circuit over-current over-voltage protection and contingency mode;
Mainframe: standard 19 cun of standards, built-in double copies stabilized voltage power supply, main frame frame, maintenance terminal, distribution row, emergent transfer box;
The wiring of maintenance telephone system is star wiring and bus-type mixing wire laying mode, and wherein normal mode connection is star wiring, and emergency communication line is bus-type wiring; Each wall call socket is at least containing 1 normal mode jack and 1 contingency mode jack, and each normal mode jack is connected to main frame by 1 pair of normal communication line; Under normal mode, speech range can more than 5Km; Each contingency mode jack connects the contingency mode jack on other call sockets in emergent connection and this emergency loop by 1, and is finally connected to this emergency loop jack corresponding on emergent transfer box; Case of emergency speech range can more than 10Km.
Described emergent transfer box is provided with N*2 emergency loop multi-tap according to on-the-spot emergency loop quantity N, and namely each emergency loop is provided with 2 and the emergency loop multi-tap connect; Emergent patchcord: interconnecting of these two emergency loop can be realized after being connected by emergent patchcord by the emergency loop multi-tap of different emergency loop.
Described wall call socket needs at least to comprise 1 normal mode jack and 1 contingency mode jack according to scene; Normal mode jack is with Green Marker, maintenance telephone system host subscriber port is connected to by normal communication line, maintenance telephone terminal connecting line should be inserted this jack when overhauling when telephone terminal works in normal mode, now overhaul telephone terminal by support maintenance telephone system host work, realize point-to-point or point-to-multipoint call conversation; Contingency mode jack in same emergency loop, with red-label, is connected to the corresponding emergency loop multi-tap of emergent transfer box by contingency mode jack by parallel way by emergency communication line.
Described Portable overhaul telephone terminal comprises:
Headset socket: use headset mode to converse for inserting special headset;
Telephone line terminal: for the connection of telephone wire, inserts wall telephone socket corresponding jack according to required mode of operation by telephone line plug after connecting telephone for special use connecting line;
Mode of operation switch: work in normal mode or contingency mode for selecting maintenance telephone terminal;
Repeating switch: can choice for use when remote call feels that called volume is less than normal when overhauling telephone terminal, to strengthen In Call;
Ringer volume switch: for regulating maintenance telephone terminal ringer volume;
Dialing keyboard: for overhauling the exhalation dialing under telephone terminal normal mode or the bell exhalation under contingency mode;
Talking handle: maintenance telephone terminal send called acceptor, in-built transmitter, receiver and hold key;
Hold key: in called process, surrounding enviroment noise is reached partner by transmitter for preventing maintenance telephone terminal, talking handle is equipped with and holds key, transmitter will be bypassed at ordinary times, can not send voice, need to pin to hold key and voice could be sent during speech.
Beneficial effect acquired by the present invention is:
The maintenance telephone system meeting the user demand of domestic nuclear power plant of the present invention can meet 256 couples of users and set up simultaneously and call out and converse when working in normal mode, also can initiate group calls or simultaneous call meets communicating with each other between multiple user, overhauling its distance of telecommunication cable using 0.5 wire diameter between telephone terminal and system host under normal mode farthest can more than 5km.Overhaul under contingency mode telephone terminal can detachment system main frame call out in this emergency loop other maintenance telephone terminal, also can by the maintenance telephone terminal in other emergency loop of calling after emergent transfer box switching, the maintenance terminal quantity of calling simultaneously or online call can more than 10, under contingency mode according to the telecommunication cable of 0.5 wire diameter its communication distance can more than 10km farthest.
System support has main frame and off two kinds of working methods, corresponding to normal mode and the contingency mode of the following stated; Terminal possesses the basic function of the dual-tone dialing of ordinary telephone set, ring, call; Terminal can realize under connection host mode point-to-point, point-to-multipoint with, simultaneous call, tone information and message look into auditory function; Terminal can Offhost independent operating, and terminal adopts three class telephone wires can realize the emergency communication ability of long distance call more than 10km, call in the emergency mode; The human relay working call between multiloop is realized by transfer box when terminal Offhost runs; Terminal is conversed by headset or handle mode, and wherein handle call has transmitter bypass functionality; Terminal shatter-resistant, anti-drop industrial design.
Accompanying drawing explanation
Fig. 1 is maintenance telephone system topological diagram;
Fig. 2 is maintenance telephone system main frame schematic diagram;
Fig. 3 is emergent transfer box schematic diagram;
Fig. 4 is wall call socket schematic diagram;
Fig. 5 is maintenance telephone terminal schematic diagram;
In figure: 1, overhaul telephone system main frame; 2, emergent transfer box; 3, wall call socket; 4, Portable overhaul telephone terminal; 5, cablehead; 101, double copies stabilized voltage power supply; 102, main frame frame; 103, maintenance terminal; 104, distribution row; 105, mainframe; 201, emergency loop multi-tap; 202, emergent patchcord; 301, normal mode jack; 302, contingency mode jack; 401, headset socket; 402, telephone line terminal; 403, mode of operation switch; 404, repeating switch; 405, ringer volume switch; 406, dialing keyboard; 407, talking handle; 408, key is held.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, the maintenance telephone system meeting the user demand of domestic nuclear power plant of the present invention comprises maintenance telephone system main frame 1, emergent transfer box 2, wall call socket 3, Portable overhaul telephone terminal 4, cablehead 5;
All subscribers feeders of maintenance telephone system main frame 1 and each emergency loop line of emergent transfer box 2 are connected to distribution row 104 by office cable, by service cable, subscribers feeder and emergency loop line are connected to cablehead 5 again, often pair of subscribers feeder in cablehead 5 uses star fashion to be connected to the normal mode jack 301 of each wall call socket 3 respectively by telephone wire, and the emergency loop line in cablehead 5 uses bus mode that the contingency mode jack 302 of wall call sockets 3 all in this emergency loop is carried out and connect by telephone wire.Portable overhaul telephone terminal 4 can complete connection according to mode of operation (normal mode/contingency mode) jack (normal mode jack 301/ contingency mode jack 302) connected corresponding to wall call socket 3 and carry out call conversation.
Maintenance telephone system main frame 1 is according to onsite user's number of terminals determination host capacity, and namely can connect the number of users of maintenance telephone terminal under normal mode of operation, host capacity can be optional from 16 line to 1536 lines.Under the environment that supply of electric power is stable, maintenance telephone system may operate at normal mode of operation, has also been referred to as host mode.
Different emergency loop multi-taps 201 is connected by one or more emergent patchcord 202 by emergent transfer box 2, realizes the switching between two or more emergency loop, two or more pieces emergency loop is interconnected.
Wall call socket 3 is the interface linkage interface of maintenance telephone terminal 4, this wall call socket 3 is installed in the place of using maintenance telephone terminal at each needs, containing two or more jacks in each wall call socket 3, wherein have 1 normal mode jack 301 and 1 contingency mode jack 302 at least, as shown in Figure 4, each normal mode jack 301 by a pair independently telecommunication cable be finally connected to the subscriber line circuit of maintenance telephone system main frame 1, all contingency mode jacks 302 under an emergency loop are finally connected to the corresponding circuit socket of emergent transfer box 2 afterwards by a pair telecommunication cable parallel connection, whole system can use multiple emergency loop according to by the site environment of repair apparatus, use one or more emergent patchcord 202 two or more emergency loop can be interconnected by emergent transfer box 2, realize the calling between different emergency loop and communication.
Portable overhaul telephone terminal 4 is terminal equipments of whole maintenance telephone system, this terminal can be operated in normal mode or contingency mode according to site specific, can be used in normal mode when overhauling telephone system main frame 1 supply of electric power stable and on-the-spot needs and be connected to normal mode jack 301 during independent call between multipair maintenance telephone terminal; When main frame because this terminal when power-off or other a variety of causes cisco unity malfunctions can work in contingency mode and be connected to contingency mode jack 302, detachment system main frame 1 is set up with other Portable overhaul telephone terminal 4 and is communicated.
As shown in Figure 2, overhaul telephone system main frame 1 and comprise double copies stabilized voltage power supply 101, main frame frame 102, maintenance terminal 103, distribution row 104, mainframe 105;
Double copies stabilized voltage power supply 101 exports-48V DC power supply and is connected to main frame frame 102 by power line and is responsible for powering to circuit board each in main frame frame; Data communication set up by maintenance terminal 103 usage data line and main frame frame 102, to monitor operational state of mainframe or to arrange maintenance to main frame; Each subscribers feeder is connected to distribution row 104 by office cable by main frame frame 102.Double copies stabilized voltage power supply 101, main frame frame 102, maintenance terminal 103, distribution row 104, emergent transfer box 2 are installed in mainframe 105.
Main frame frame 102: be motherboard subrack structure, all kinds of required circuit board is directly inserted in corresponding slot, and dissimilar circuit board has misplug-proof structure, prevents wrong plug slot from damaging circuit board.Mainly contain master control borad (two plate is hot standby), sub-control plate, user's plate, relay plate, Universal Power etc. in main frame frame 102, motherboard has exterior I/O communication interface, for connecting the external equipment such as maintenance terminal, supervisory keyboard.
Maintenance terminal 103: the correlation function being mainly used in overhauling telephone system main frame 1 is arranged and systems axiol-ogy maintenance.
Emergent transfer box 2: across the interconnecting device of maintenance telephone terminal 4 call conversation under loop and other emergency loop when being mainly used in overhauling under telephone terminal 4 emergency pattern.
Distribution row 104: the distribution for each user under normal mode connects, the distribution connection of each emergency loop and over-current over-voltage protection under circuit over-current over-voltage protection and contingency mode.
Mainframe 105: standard 19 cun of standards, built-in double copies stabilized voltage power supply 101, main frame frame 102, maintenance terminal 103, distribution row 104, emergent transfer box 2.
The wiring of maintenance telephone system is star wiring and bus-type mixing wire laying mode, and wherein normal mode connection is star wiring, and emergency communication line is bus-type wiring.Each wall call socket 3 is at least containing 1 normal mode jack 301 and 1 contingency mode jack 302, and each normal mode jack is connected to main frame by 1 pair of normal communication line.Under normal mode, speech range can more than 5Km; Each contingency mode jack 302 connects the contingency mode jack on other call sockets in emergent connection and this emergency loop by 1, and is finally connected to this emergency loop jack corresponding on emergent transfer box.Case of emergency speech range can more than 10Km.
As shown in Figure 3, emergency loop multi-tap 201: emergent transfer box 2 is provided with N*2 emergency loop multi-tap 201 according to on-the-spot emergency loop quantity N, and namely each emergency loop is provided with 2 and the emergency loop multi-tap 201 connect.Emergent patchcord 202: interconnecting of these two emergency loop can be realized after being connected by emergent patchcord 202 by the emergency loop multi-tap 201 of different emergency loop.
As shown in Figure 4, wall call socket 3 needs at least to comprise 1 normal mode jack 301 and 1 contingency mode jack 302 according to scene.
Normal mode jack 301: this jack is generally with Green Marker, maintenance telephone system main frame 1 user port is connected to by normal communication line, maintenance telephone terminal 4 connecting line should be inserted this jack when overhauling when telephone terminal 4 works in normal mode, now overhaul telephone terminal 4 support maintenance telephone system main frame 1 is worked, realize point-to-point or point-to-multipoint call conversation.
Contingency mode jack 302: the contingency mode jack 302 in same emergency loop, generally with red-label, is connected to the corresponding emergency loop multi-tap of emergent transfer box 2 by this jack by parallel way by emergency communication line.
As shown in Figure 5, the headset socket 401 of Portable overhaul telephone terminal 4: use headset mode to converse for inserting special headset.
Telephone line terminal 402: for the connection of telephone wire, inserts wall telephone socket corresponding jack according to required mode of operation by telephone line plug after connecting telephone for special use connecting line.
Mode of operation switch 403: work in normal mode or contingency mode for selecting maintenance telephone terminal 4.
Repeating switch 404: can choice for use when remote call feels that called volume is less than normal when overhauling telephone terminal 4, to strengthen In Call.
Ringer volume switch 405: for regulating maintenance telephone terminal 4 ringer volume.
Dialing keyboard 406: for overhauling the exhalation dialing under telephone terminal 4 normal mode or the bell exhalation under contingency mode.
Talking handle 407: maintenance telephone terminal 4 send called acceptor, in-built transmitter, receiver and hold key 408.
Hold key 408: in called process, surrounding enviroment noise is reached partner by transmitter for preventing maintenance telephone terminal 4, talking handle is equipped with and holds key 408, transmitter will be bypassed at ordinary times, can not send voice, need to pin to hold key 408 and voice could be sent during speech.
In a specific embodiment, in this system, wall call socket 3 is distributed in 10 regions, and each Regional Distribution is an emergency loop by we.Normal jack 301 in wall call socket 3 in each region is connected to the relative users port of system host respectively by telephone wire → cablehead 5 → telecommunication cable → distribution row 104, each normal mode jack 301 distributes a telephone number, and namely the circuit of each normal mode jack 301 is independently.And the contingency mode jack 302 in each emergency loop in wall call socket 3 by telecommunication cable and after connecing or splice connection in cablehead 5 → distribution row 104 → to the respective branch binding post of emergent transfer box, the contingency mode jack 302 in each loop interconnects physically like this.
The mode of operation of system is divided into normal mode and contingency mode two kinds, and two kinds of patterns both can independently use, and also can use simultaneously.
Normal mode works: in the normal mode, first should determine that maintenance telephone system main frame 1 is working properly, the mode of operation switch 403 of maintenance telephone terminal 4 is threaded to normal mode, and the telephone connection post 402 of maintenance telephone terminal 4 is inserted the normal mode jack 301 wall overhauling telephone socket 3 by connection plug, dialing tone can be heard after maintenance telephone relation handle 407 off-hook, use dialing keyboard 406 by called phone number, maintenance telephone terminal 4 now also should be inserted in maintenance telephone socket 3 normal jack 301 in and overhaul after telephone terminal 4 works in normal mode and can hear ring-back tone, called terminal ringing, pin after called off-hook and hold key 408 and can converse.Corresponding group calling number can be dialed as needs carry out group calls or simultaneous call or to generally call number, maintenance telephone system main frame 1 can according to dial the number and call out accordingly.As the earphone jack 401 that only headset need be inserted maintenance telephone terminal 4 during telephone ear microphone need be used in communication process.
In maintenance telephone system main frame 1 power-off or because contingency mode being used to carry out call conversation when other reasons causes main frame not work.Can converse by Offhost when contingency mode works, detailed process is as follows:
Open maintenance telephone terminal 4 battery sleeve and load three joints No. 1 battery, maintenance telephone terminal 4 mode of operation switch 403 is threaded to contingency mode, the telephone connection post 402 of maintenance telephone terminal 4 is inserted the contingency mode jack 302 wall overhauling telephone socket 3 by connection plug, mention after talking handle 407 by the call button on dialing keyboard 406, other terminals 4 be inserted in emergent jack 302 now on same branch road start ring, can converse after off-hook.As the terminal be inserted in same emergency loop has multiple, these terminals meeting ring simultaneously, also can pay attention to the class after off-hook simultaneously.Maintenance telephone terminal 4 is supported when contingency mode works to use telephone ear microphone communication equally.As needed only need to be undertaken connecting by transfer box needing two the emergency loop multi-taps 201 conversed with emergent connecting line 202 across branch road communication, being divided into 10 emergency loop in this project, allowing 10 emergency loop all to connect, also can partly connect.When not connected by emergent transfer box 2, each loop is all independently speech channels, and the call on each loop can not interfere with the communication of other branch roads.
System also can work in two modes simultaneously, mutual when working does not affect, only should be noted in using that the mode switch 403 of maintenance telephone system main frame 1 is threaded to corresponding mode of operation, phone can only be inserted normal mode jack 301 when overhauling telephone terminal 1 and being operated in normal mode, phone can only be inserted emergent jack 302 when overhauling when telephone system main frame 1 is operated in contingency mode, maintenance telephone system main frame 1 can be caused during wrong plug to work abnormal, but can not c maintenance telephone system main frame 1.
Claims (9)
1. meet a maintenance telephone system for domestic nuclear power plant user demand, it is characterized in that: this system comprises maintenance telephone system main frame (1), emergent transfer box (2), wall call socket (3), Portable overhaul telephone terminal (4), cablehead (5), all subscribers feeders of maintenance telephone system main frame (1) and each emergency loop line of emergent transfer box (2) are connected to distribution row (104), by service cable, subscribers feeder and emergency loop line are connected to cablehead (5) again, often pair of subscribers feeder in cablehead (5) uses star fashion to be connected to the normal mode jack (301) of each wall call socket (3) respectively by telephone wire, emergency loop line in cablehead (5) uses bus mode that the contingency mode jack (302) of walls call socket (3) all in this emergency loop is carried out and connect by telephone wire, Portable overhaul telephone terminal (4) is according to mode of operation, and normal mode jack (the 301)/contingency mode jack (302) comprised corresponding to normal mode/contingency mode connection wall call socket (3) can complete connection and carry out call conversation.
2. the maintenance telephone system meeting the user demand of domestic nuclear power plant according to claim 1, it is characterized in that: described maintenance telephone system main frame (1) is according to onsite user's number of terminals determination host capacity, namely can connect the number of users of maintenance telephone terminal under normal mode of operation, host capacity can be optional from 16 line to 1536 lines; Under the environment that supply of electric power is stable, maintenance telephone system may operate at normal mode of operation, has also been referred to as host mode.
3. the maintenance telephone system meeting the user demand of domestic nuclear power plant according to claim 1, it is characterized in that: different emergency loop multi-taps (201) is connected by one or more emergent patchcord (202) by described emergent transfer box (2), realize the switching between two or more emergency loop, two or more pieces emergency loop is interconnected.
4. the maintenance telephone system meeting the user demand of domestic nuclear power plant according to claim 1, it is characterized in that: described wall call socket (3) is the interface linkage interface of maintenance telephone terminal (4), this wall call socket (3) is installed in the place of using maintenance telephone terminal at each needs, containing two or more jacks in each wall call socket (3), wherein have 1 normal mode jack (301) and 1 contingency mode jack (302) at least, each normal mode jack (301) by a pair independently telecommunication cable be finally connected to maintenance telephone system main frame (1) subscriber line circuit, all contingency mode jacks (302) under an emergency loop are finally connected to the corresponding circuit socket of emergent transfer box (2) afterwards by a pair telecommunication cable parallel connection, whole system can use multiple emergency loop according to by the site environment of repair apparatus, use one or more emergent patchcord (202) two or more emergency loop can be interconnected by emergent transfer box (2), realize the calling between different emergency loop and communication.
5. the maintenance telephone system meeting the user demand of domestic nuclear power plant according to claim 1, it is characterized in that: described Portable overhaul telephone terminal (4) is the terminal equipment of whole maintenance telephone system, this terminal can be operated in normal mode or contingency mode according to site specific, can be used in normal mode when overhauling telephone system main frame (1) supply of electric power stable and on-the-spot needs and be connected to normal mode jack (301) during independent call between multipair maintenance telephone terminal; When main frame because this terminal when power-off or other a variety of causes cisco unity malfunctions can work in contingency mode and be connected to contingency mode jack (302), detachment system main frame (1) is set up with other Portable overhaul telephone terminal (4) and is communicated.
6. the maintenance telephone system meeting the user demand of domestic nuclear power plant according to claim 1, is characterized in that: described maintenance telephone system main frame (1) comprises double copies stabilized voltage power supply (101), main frame frame (102), maintenance terminal (103), distribution row (104), mainframe (105);
Double copies stabilized voltage power supply (101) output-48V DC power supply is connected to main frame frame (102) by power line and is responsible for powering to circuit board each in main frame frame; Data communication set up by maintenance terminal (103) usage data line and main frame frame (102), to monitor operational state of mainframe or to arrange maintenance to main frame; Each subscribers feeder is connected to distribution row (104) by office cable by main frame frame (102); Double copies stabilized voltage power supply (101), main frame frame (102), maintenance terminal (103), distribution row (104), emergent transfer box (2) are installed in mainframe (105);
Main frame frame (102): be motherboard subrack structure, all kinds of required circuit board is directly inserted in corresponding slot, and dissimilar circuit board has misplug-proof structure, prevents wrong plug slot from damaging circuit board;
Maintenance terminal (103): the correlation function for overhauling telephone system main frame (1) is arranged and systems axiol-ogy is safeguarded;
Emergent transfer box (2): across the interconnecting device of maintenance telephone terminal (4) call conversation under loop and other emergency loop during for overhauling under telephone terminal (4) emergency pattern;
Distribution row (104): the distribution for each user under normal mode connects, the distribution connection of each emergency loop and over-current over-voltage protection under circuit over-current over-voltage protection and contingency mode;
Mainframe (105): standard 19 cun of standards, built-in double copies stabilized voltage power supply (101), main frame frame (102), maintenance terminal (103), distribution row (104), emergent transfer box (2);
The wiring of maintenance telephone system is star wiring and bus-type mixing wire laying mode, and wherein normal mode connection is star wiring, and emergency communication line is bus-type wiring; Each wall call socket (3) is at least containing 1 normal mode jack (301) and 1 contingency mode jack (302), and each normal mode jack is connected to main frame by 1 pair of normal communication line; Under normal mode, speech range can more than 5Km; Each contingency mode jack (302) connects the contingency mode jack on other call sockets in emergent connection and this emergency loop by 1, and is finally connected to this emergency loop jack corresponding on emergent transfer box; Case of emergency speech range can more than 10Km.
7. the maintenance telephone system meeting the user demand of domestic nuclear power plant according to claim 1, it is characterized in that: described emergent transfer box (2) is provided with N*2 emergency loop multi-tap (201) according to on-the-spot emergency loop quantity N, namely each emergency loop is provided with 2 and the emergency loop multi-tap (201) connect; Emergent patchcord (202): interconnecting of these two emergency loop can be realized after being connected by emergent patchcord (202) by the emergency loop multi-tap (201) of different emergency loop.
8. the maintenance telephone system meeting the user demand of domestic nuclear power plant according to claim 1, is characterized in that: described wall call socket (3) needs at least to comprise 1 normal mode jack (301) and 1 contingency mode jack (302) according to scene; Normal mode jack (301) is with Green Marker, maintenance telephone system main frame (1) user port is connected to by normal communication line, maintenance telephone terminal (4) connecting line should be inserted this jack when overhauling when telephone terminal (4) works in normal mode, now overhaul telephone terminal (4) by support maintenance telephone system main frame (1) work, realize point-to-point or point-to-multipoint call conversation; Contingency mode jack (302) in same emergency loop, with red-label, is connected to the corresponding emergency loop multi-tap of emergent transfer box 2 by contingency mode jack (302) by parallel way by emergency communication line.
9. the maintenance telephone system meeting the user demand of domestic nuclear power plant according to claim 1, is characterized in that: described Portable overhaul telephone terminal (4) comprising:
Headset socket (401): use headset mode to converse for inserting special headset;
Telephone line terminal (402): for the connection of telephone wire, inserts wall telephone socket corresponding jack according to required mode of operation by telephone line plug after connecting telephone for special use connecting line;
Mode of operation switch (403): work in normal mode or contingency mode for selecting maintenance telephone terminal (4);
Repeating switch (404): can choice for use when remote call feels that called volume is less than normal when overhauling telephone terminal (4), to strengthen In Call;
Ringer volume switch (405): for regulating maintenance telephone terminal (4) ringer volume;
Dialing keyboard (406): for overhauling the exhalation dialing under telephone terminal (4) normal mode or the bell exhalation under contingency mode;
Talking handle (407): maintenance telephone terminal (4) send called acceptor, in-built transmitter, receiver and hold key (408);
Hold key (408): in called process, surrounding enviroment noise is reached partner by transmitter for preventing maintenance telephone terminal (4), talking handle is equipped with and holds key (408), transmitter will be bypassed at ordinary times, can not voice be sent, need to pin during speech to hold key (408) and voice could be sent.
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| CN1276948A (en) * | 1997-07-30 | 2000-12-13 | 诺基亚高速接入产品公司 | Power conservation for POTS and modulated data transmission |
| US20040172660A1 (en) * | 2003-02-28 | 2004-09-02 | Celite Systems, A Delaware Corporation | Impedance-matched interface for broadband data service provisioning |
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