CN202957834U - Four-line connecting structure between ZDD-12 carrier and Harris switch - Google Patents
Four-line connecting structure between ZDD-12 carrier and Harris switch Download PDFInfo
- Publication number
- CN202957834U CN202957834U CN 201220554218 CN201220554218U CN202957834U CN 202957834 U CN202957834 U CN 202957834U CN 201220554218 CN201220554218 CN 201220554218 CN 201220554218 U CN201220554218 U CN 201220554218U CN 202957834 U CN202957834 U CN 202957834U
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- Prior art keywords
- switch
- terminal equipment
- relay
- local side
- carrier terminal
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- 238000011084 recovery Methods 0.000 claims description 3
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000005329 tetralinyl group Chemical group C1(CCCC2=CC=CC=C12)* 0.000 description 1
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Abstract
A four-line connecting structure between a ZDD-12 carrier and a Harris switch comprises a central office switch and a central office carrier, wherein the central office switch is connected with a four-line interface on the central office carrier through a four-line relay, and a relay J is arranged on a line M connecting the central office switch and the central office carrier. Diodes D1 are parallelly connected at both ends of the relay J, wherein one ends of a pair of normally closed contacts of the relay J are connected with a signal sending disc a11, and the other ends of the pair of normally closed contacts are connected with a call sending disc b11. One ends of the other pair of normally closed contacts of the relay J are connected with a call receiving disc ab11, and the other ends of the pair of the normally closed contacts are connected with a resetting disc b5. The four-line connecting structure occupies a four-line relay user of a central office switch instead of user resources of a central office carrier. The reception level loss of a station end Carrier users received at a central office switch user is 0Db, and the sound effects are excellent. Equipotential dialing and calling between a common user of a switch and a common user of a station end carrier is realized, thereby preventing a secondary dialing, and improving work efficiency.
Description
Technical field
The utility model relates to a kind of communication of power system power carrier.
Background technology
Existing ZDD-12 electric wave carrier is connected with four lines of Harris's switch and need to could realizes by taking each 2 users of carrier terminal equipment and switch, when local side switch domestic consumer dials station end carrier terminal equipment domestic consumer, at first be that local side switch two wires relaying takies local side carrier terminal equipment domestic consumer, dialing (be generally 2,4,6,8 or 3,5,7,9 one number), stand and hold carrier terminal equipment called party ring, off-hook, conversation.Stand while holding carrier terminal equipment domestic consumer to dial local side switch domestic consumer, at first be station end carrier terminal equipment domestic consumer off-hook, dialing (be generally 2,4,6,8 or 3,5,7,9 one number), local side carrier terminal equipment called party starts, take switch domestic consumer, two-stage dialing, local side switch called party ring, off-hook, conversation.In use take the local side switch and local side carrier terminal equipment user resources are more, the station end carrier terminal equipment user reception level that the local side exchanger user is accepted reduces 7Db, and tonequality is poor.
Summary of the invention
The purpose of this utility model just is to provide four wire connection structures of a kind of ZDD-12 carrier terminal equipment and Harris's switch, take the local side switch and local side carrier terminal equipment user resources are more with solution, the station end carrier terminal equipment user reception level loss that the local side exchanger user is accepted is 7Db, causes the poor problem of tonequality.
The purpose of this utility model is to realize by such technical scheme, it includes the local side switch, the local side carrier terminal equipment, it is characterized in that: the local side switch is connected with the four-wire interface on the local side carrier terminal equipment by four line relayings, be provided with relay J on the M line be connected with the local side carrier terminal equipment at the local side switch, the two ends of relay J also are connected to diode D1, a relay J wherein end of a pair of normally closed contact connects signal transmitting panel a11, the other end connects calls out transmitting panel b11, another end to normally closed contact of relay J connects calls out take-up reel ab11, the other end connects recovery dish b5.
The utility model is work like this: when end switch domestic consumer of authorities dials station end carrier terminal equipment domestic consumer, be at first that local side switch four line relayings and local side carrier terminal equipment transmitting branch and receiving branch circuit are linked up; Switch M line voltage becomes 0 starting relay J, and it seals in signal transmitting panel a11 and disconnects with the normally closed contact of calling out transmitting panel b11, prevents that the other user from disturbing; Relay J seals in signal transmitting panel a11 and disconnects with the normally closed contact of calling out transmitting panel b11, and start station end carrier terminal equipment and prepare to accept incoming call, the switch dialing, relay J is flashed, the end carrier terminal equipment called party ring of standing, off-hook, conversation.
When station end carrier terminal equipment domestic consumer dials local side switch domestic consumer, at first be station end carrier terminal equipment domestic consumer off-hook, signal receiving plate ab11 makes switch E line voltage become 0, start switch and prepare to accept incoming call, stand and hold the dialing of carrier terminal equipment domestic consumer, local side switch called party ring, off-hook, conversation.
Because the utility model only takies four line trunk subscribers of local side switch, do not take local side carrier terminal equipment user resources, the station end carrier terminal equipment user reception level loss that the local side exchanger user is accepted is 0Db, switch domestic consumer and station end carrier terminal equipment domestic consumer have realized the number dialing with the same length calling, avoid the worry of two-stage dialing, improved operating efficiency.
Owing to having adopted technique scheme, the utlity model has compact conformation, advantage easy to use, it only takies four line trunk subscribers of local side switch, do not take local side carrier terminal equipment user resources, the station end carrier terminal equipment user reception level loss that the local side exchanger user is accepted is 0Db, and acoustical quality is good, and switch domestic consumer and station end carrier terminal equipment domestic consumer have realized the number dialing with the same length calling, avoid the worry of two-stage dialing, improved operating efficiency.
The accompanying drawing explanation
Accompanying drawing of the present utility model is described as follows.
Fig. 1 is connection block diagram of the present utility model.
Fig. 2 is local side carrier terminal equipment connection diagram.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1, 2, the utility model comprises local side switch A, local side carrier terminal equipment B, it is characterized in that: the local side switch is connected with the four-wire interface F on the local side carrier terminal equipment by four line relaying D, be provided with relay J on the M line be connected with the local side carrier terminal equipment at the local side switch, the two ends of relay J also are connected to diode D1, the relay J wherein end of a pair of normally closed contact J-1 connects signal transmitting panel a11, the other end connects calls out transmitting panel b11, another end to normally closed contact J-2 of relay J connects calls out take-up reel ab11, and the other end connects recovery dish b5.
Local side switch A in the utility model is with after local side carrier terminal equipment B is connected, by the local side carrier terminal equipment, with station end carrier terminal equipment C, be connected again, it is work like this: when end switch domestic consumer of authorities dials station end carrier terminal equipment domestic consumer, be at first that local side switch four line relayings and local side carrier terminal equipment transmitting branch and receiving branch circuit are linked up; Switch M line voltage becomes 0 starting relay J, and it seals in signal transmitting panel a11 and disconnects with the normally closed contact of calling out transmitting panel b11, prevents that the other user from disturbing; Relay J seals in signal transmitting panel a11 and disconnects with the normally closed contact of calling out transmitting panel b11, and start station end carrier terminal equipment and prepare to accept incoming call, the switch dialing, relay J is flashed, the end carrier terminal equipment called party ring of standing, off-hook, conversation.
When station end carrier terminal equipment domestic consumer dials local side switch domestic consumer, at first be station end carrier terminal equipment domestic consumer off-hook, signal receiving plate ab11 makes switch E line voltage become 0, start switch and prepare to accept incoming call, stand and hold the dialing of carrier terminal equipment domestic consumer, local side switch called party ring, off-hook, conversation.
Because the utility model only takies four line trunk subscribers of local side switch, do not take local side carrier terminal equipment user resources, the station end carrier terminal equipment user reception level loss that the local side exchanger user is accepted is 0Db, switch domestic consumer and station end carrier terminal equipment domestic consumer have realized the number dialing with the same length calling, avoid the worry of two-stage dialing, improved operating efficiency.
As shown in Figure 2, for the ease of local side carrier terminal equipment user's off-hook or as controlling switching relay when called, realize two/tetra-lines conversions, between the signal transmitting panel a11 in the local side carrier terminal equipment and two/tetra-drum ab13 and be connected to two diode D2, D3.
Claims (2)
1. four wire connection structures of ZDD-12 carrier terminal equipment and Harris's switch, comprise local side switch (A), local side carrier terminal equipment (B), it is characterized in that: local side switch (A) is connected with the four-wire interface (F) on local side carrier terminal equipment (B) by four line relayings (D), be provided with relay (J) on the M line be connected with local side carrier terminal equipment (B) at local side switch (A), the two ends of relay (J) also are connected to diode (D1), relay (J) wherein end of a pair of normally closed contact connects signal transmitting panel (a11), the other end connects calls out transmitting panel (b11), another end to normally closed contact of relay (J) connects calls out take-up reel (ab11), the other end connects recovery dish (b5).
2. four wire connection structures of ZDD as claimed in claim 1-12 carrier terminal equipment and Harris's switch is characterized in that: between the signal transmitting panel (a11) in the local side carrier terminal equipment and two/tetra-drums (ab13) and be connected to two diodes (D2, D3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220554218 CN202957834U (en) | 2012-10-26 | 2012-10-26 | Four-line connecting structure between ZDD-12 carrier and Harris switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220554218 CN202957834U (en) | 2012-10-26 | 2012-10-26 | Four-line connecting structure between ZDD-12 carrier and Harris switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202957834U true CN202957834U (en) | 2013-05-29 |
Family
ID=48463384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220554218 Expired - Fee Related CN202957834U (en) | 2012-10-26 | 2012-10-26 | Four-line connecting structure between ZDD-12 carrier and Harris switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202957834U (en) |
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2012
- 2012-10-26 CN CN 201220554218 patent/CN202957834U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20181026 |