CN201422144Y

CN201422144Y - 120-Ohm DDF unit body

Info

Publication number: CN201422144Y
Application number: CN2009200322813U
Authority: CN
Inventors: 赵谦
Original assignee: XIAN XUNGANG COMMUNICATION TECHNOLOGY Co Ltd
Current assignee: XIAN XUNGANG COMMUNICATION TECHNOLOGY Co Ltd
Priority date: 2009-03-13
Filing date: 2009-03-13
Publication date: 2010-03-10
Anticipated expiration: 2019-03-13

Abstract

The utility model relates to a 120-Ohm DDF unit body, which comprises two function areas, i.e. a cable access area and a tuning and testing area; the cable access area comprises a circuit printed board which serves as a base and a cable connecting device which is fixed on the circuit printed board; the tuning and testing area comprises another circuit printed board; and the circuits of the two circuit printed boards correspond to each other to be connected. The circuit capacity of the single space is greatly increased, and 32E1s to 64E1s can be achieved for 2U space, which is 2 to 4 times of the prior unit body, so the requirement on quite a large number of circuit connections can be met in limited space. Therefore, the 120-Ohm DDF unit body is applicable to the matching and the connectionamong a plurality of communication equipment.

Description

A kind of 120 ohm of DDF cell cubes

Technical field

The utility model relates to a kind of physical connection equipment in communication network field, is specifically related to a kind of 120 ohm of DDF cell cubes that are connected in communication network between the different equipment or between the different port of equipment.

Background technology

Communication network is made of a lot of equipment, need the signal transmission between the different equipment or between the different port of same equipment, in order to finish the signal transmission, need couple together by 120 ohm of symmetrical cables sometimes between these different equipment or between the different port of equipment.120 ohm of DDF cell cubes are used for the physical connection equipment that connects E1 circuit (also being the E1 signal) and this circuit is managed and safeguards in communication network, the E1 signal transmits between distinct device or different port by this cable.

Because when the network operation, often need to change the trend of signal, just to change the annexation between equipment or the port; Simultaneously, need in network operation that RST to each port disconnects, operation such as connection, winding and test.For network security, do not allow directly to carry out aforesaid operations usually, so just distinct device or different port all are connected to DDF upward (DDF refers to digital distribution frame) by 120 ohm of symmetrical cables at the signal port place of various device; Be equivalent to the signal port of distinct device is all extended together, so just help aforesaid operations.The existing application of DDF in network as shown in Figure 1.

120 ohm of DDF are installed in frame or the rack by a lot of cell cubes to constitute, and this element body is called 120 ohm of DDF cell cubes, and the function of DDF is all finished by it.120 ohm unit physical efficiency of common 2u height provides the connection of 8 couples of E1, and the E1 quantity that just is linked into this element body is 16, and claim that the capacity of this element body is 16 E1 this moment.Because technology and design reasons, it is very big that present cell cube capacity can't be done, and (U is the unit that description equipment takies size in vertical direction to common 2U, just is used for describing height or thickness.1u=44mm) cell cube all is 16 E1 basically.

In fact network communication equipment is a lot, and this just needs a plurality of cell cubes to finish the connection of circuit.Relation between a plurality of DDF unit and DDF and the peripheral equipment as shown in Figure 2.Sometimes owing to there are not enough installing spaces, at this moment just one or several 120 ohm of DDF cell cubes need be installed in the ready-made rack, but and the circuit quantity that need to connect limited when the space more for a long time, and present capacity is that the cell cube of 16 E1 just often can't meet the demands.

Present 120 ohm of DDF cell cubes all are to pass through extrusion moulding by plastic material, metal device are fixed therein to form again.Because design principle and manufacturing process restriction, the capacity of the DDF cell cube of 2U can only be accomplished 16 E1 at present; Moreover present cell cube need rotate a certain angle cell cube when carrying out the cable access, because after cell cube is installed on the frame just as loose pile of drawer together, cable inserts the zone in the drawer the inside, after the rotation, inserting the district just can expose, so just can carry out the operation that cable inserts, as twining the use of the similar rotary shoe chest of this process.The occupation space, also want extra cable access operation space when therefore cell cube is except installation.That is to say that the actual occupation space that the 2U cell cube takies will can reach about 3U usually greater than 2U.

Summary of the invention

The purpose of this utility model is to provide a kind of 120 ohm of DDF cell cubes, and the circuit capacity of its unit space increases greatly, and 32～64 E1 can be accomplished in the 2U space.

Technical solution of the present utility model is:

A kind of 120 ohm of DDF cell cubes comprise that cable inserts district and two functional areas of test bay, and its special character is:

Described cable insert the district be by circuit printing plate as pedestal, cable connecting arrangement be fixed on the circuit printing plate constitute, described test bay is made of another piece circuit printing plate; The circuit of described two circuit printing plates is corresponding one by one and be connected.

The circuit printing plate that above-mentioned cable inserts the district is vertical mutually with the circuit printing plate of test bay; Comprise changeable sending and receiving circuit of may command or structure in the circuit printing plate of described test bay, by test bay to the operation of transmission circuit finish disconnection, encircle certainly from the E1 signal of equipment, connection, on-line testing and interim line transfer operation.

The control of the sending and receiving circuit of above-mentioned test bay circuit printing plate realizes by attachment plug, socket, lead or switch.

Said units body both sides are provided with slideway or guide rail, and this cell cube is installed on rack or the frame by slideway or guide rail, and described cell cube can move by straight line on slideway or guide rail; Connection between described cell cube and the guide rail can be axle or structure similar and axle, and cell cube can rotate to an angle around axle when sliding into the guide rail end like this, so that the routing district is in the face of operating personnel.Make things convenient for the access operation of cable.

Above-mentioned cable connecting arrangement can be the coiling pin.

Above-mentioned cable connecting arrangement can be the spinning binding post.

Above-mentioned cable connecting arrangement can be the cable connecting hole.

Above-mentioned cable connecting arrangement can be the welding region on the circuit printing plate.

Above-mentioned cable connecting arrangement can also be that cable signal line conductor connects or other metal devices on circuit printing plate.

Advantage of the present utility model is:

Owing to used circuit printing plate, what therefore the density of circuit can design is very big, and the circuit capacity of unit space increases greatly, and 32～64 E1 can be accomplished in the 2U space, be 2～4 times of present cell cube, can satisfy the circuit connection requirement of larger amt under the confined space; After using slideway or guide rail, cell cube can pull out carries out winding operation, does not additionally take cabinet space.

Description of drawings

Fig. 1 is the application signal of existing DDF in network.

Fig. 2 is the relation signal between a plurality of DDF unit and DDF and the peripheral equipment.

Fig. 3 is access of the present utility model district and the signal of test bay position.

Fig. 4 inserts the transmission circuit signal of test bay respectively for the sending and receiving of the cable/circuit in the utility model access district.

Fig. 5 is three kinds of signal condition schematic diagrames of the utility model.

Embodiment

A kind of 120 ohm of DDF cell cubes, utilize the circuit printing plate seat to be pedestal, the pin that will wind the line is welded on the printed panel, become cable and insert the district, 120 ohm symmetrical cable just by the solderless wrapped connection of coiling instrument on the pin that winds the line, be made into test bay with an other circuit printing plate, inserting district's circuit printing plate and test bay circuit printing plate is vertical relation on the position, as shown in Figure 3; Cable/the circuit of test bay circuit printing plate and to insert the cable/circuit of district's circuit printing plate corresponding one by one and be connected, the sending and receiving circuit that inserts the cable/circuit in district inserts the sending and receiving circuit of test bay respectively, as Fig. 4.

The transmission circuit of test bay is that may command is changeable, so just can by test bay to the operation of the sending and receiving circuit of circuit printing plate finish disconnection, encircle certainly from the E1 signal of equipment, functions such as connection, on-line testing, interim line transfer, the control of the sending and receiving circuit of test bay circuit printing plate is finished by attachment plug or socket or lead or switch.

When not inserting the disconnection of plug or socket or switch in the A position, the E1 signal just is disconnected; When plug or socket were inserted in the B position, perhaps switch was when closing at the B position, and the E1 circuit is encircled certainly; When plug or socket were inserted in the C position, perhaps switch was when closing at the C position, and the E1 circuit is connected.Wherein three kinds of signal conditions are seen Fig. 5.

The design of the utility model cell cube both sides has slideway or guide rail, this cell cube is installed on rack or the frame by slideway or guide rail, cell cube can move by straight line on slideway or guide rail, carries out cable when inserting, and unit body image drawer is equally pulled out get final product.

In the such scheme, on the circuit printing plate in cable access district the spinning binding post can be installed and replace the pin that winds the line.

In the such scheme, cable inserts the district and can also design the cable connecting hole and replace the pin that winds the line, and when cable inserts cable signal line solderable conductor is connected on the connecting hole to get final product.

In the such scheme, cable access district can also design the welding region that is positioned on the circuit printing plate and replace the pin that winds the line, and when cable inserts cable signal line solderable conductor is connected on this zone and upward gets final product.

In the such scheme, cable inserts the district can also replace the pin that winds the line by designs fix other metal devices on circuit printing plate, when cable inserts with the connection of cable signal line conductor or be welded on this device and get final product.

Claims

1, a kind of 120 ohm of DDF cell cubes, comprise that cable inserts district and two functional areas of test bay, it is characterized in that: described cable insert the district be by circuit printing plate as pedestal, cable connecting arrangement be fixed on the circuit printing plate constitute, described test bay is made of another piece circuit printing plate; The circuit of described two circuit printing plates is corresponding one by one and be connected.

2, according to the described 120 ohm of DDF cell cubes of claim 1, it is characterized in that: the circuit printing plate that described cable inserts the district is vertical mutually with the circuit printing plate of test bay; Comprise changeable sending and receiving circuit of may command or structure in the circuit printing plate of described test bay, by test bay to the operation of transmission circuit finish disconnection, encircle certainly from the E1 signal of equipment, connection, on-line testing and interim line transfer operation.

3, according to the described 120 ohm of DDF cell cubes of claim 2, it is characterized in that: the control of the sending and receiving circuit of described test bay circuit printing plate realizes by attachment plug, socket and lead or switch and lead.

4, according to the arbitrary described 120 ohm of DDF cell cubes of claim 1～3, it is characterized in that: described cell cube both sides are provided with slideway or guide rail, this cell cube is installed on rack or the frame by slideway or guide rail, and described cell cube can move by straight line on slideway or guide rail; Connection between described cell cube and the guide rail can be axle or structure similar and axle, and cell cube can rotate to an angle around axle when sliding into the guide rail end like this.

5, according to the described 120 ohm of DDF cell cubes of claim 4, it is characterized in that: described cable connecting arrangement is the coiling pin.

6, according to the described 120 ohm of DDF cell cubes of claim 5, it is characterized in that: the fixed form of described cable connecting arrangement is welding.

7, according to the described 120 ohm of DDF cell cubes of claim 4, it is characterized in that: described cable connecting arrangement is the spinning binding post.

8, according to the described 120 ohm of DDF cell cubes of claim 4, it is characterized in that: described cable connecting arrangement is the cable connecting hole.

9, according to the described 120 ohm of DDF cell cubes of claim 4, it is characterized in that: described cable connecting arrangement is the welding region on the circuit printing plate.

10, according to the described 120 ohm of DDF cell cubes of claim 4, it is characterized in that: described cable connecting arrangement is that cable signal line conductor connects or is welded on other metal devices on the circuit printing plate.