JPH0267970A - Oscillator for comparing plurality of conductors - Google Patents

Abstract

PURPOSE:To compare and confirm a plurality of conductors at the same time only by on-site workers by providing an audible signal generating part which has an oscillating part and oscillates and outputs a plurality of audible signals at the same time. CONSTITUTION:An oscillating part 19 oscillates an audible signal at a specified frequency. The audible signal current is intermittently cut at a specified interval in a chopper 20. The oscillating part 19 and the chopper are provided in an audible signal generating part B. For example, the ends of parallel paired cables 25 and 26 are connected. Output terminals O1 - On which are freely connected to cable conductors CL (L1 - Ln) to be correlated are formed at the other ends. The ends of branching and connecting wires 29a and 30a are branched and connected to the respective paired cables 25 and 26. The other ends of the wires 29a and 30a are connected to the positive sides of DC power sources 27 and 28. The ends of ground connecting wires 29b and 30b are connected to the negative side in parallel. A grounding terminal E which is freely connected to a grounding line alpha is formed at the other ends. Signal sounds which can recognize a plurality of the cable conductors L1 - Ln are transmitted at the same time in this constitution. In this way, a plurality of the conductors L1 - Ln can be discriminated all together, and the polarity of each conductor can be indentified.

Description

Detailed Description of the Invention (1) Purpose of the Invention [Field of Industrial Application] The present invention relates to a cable line configured by cascadingly connecting a plurality of cables each containing a plurality of core wires in a telephone line or the like. At both ends thereof, it is connected to a multi-fiber comparison oscillator which is used to perform fiber comparison.

[Prior Art] In this kind of conventional connection wiring work, as shown in Fig. 3, the call control personnel who waits at one end of the cable line CL (-the station side for boat fishing) first take the communication precautions established. Line 1-a, 1
- Connect the lead wires 2 and 3 connection ends of the head type line test handset 1 to the connection terminal TaTb at one end of -b, put the head spring 4 on your head, put the transmitter 5 near your mouth, and put the receiver 6 in your ear. At the same time, connect terminal Ta of communication core 1a.
The connecting end of the lead wire 8 of the oscillator 7 that emits an audible signal is connected to the oscillator 7, while the field work personnel arriving at the site on the other end of the cable line CL connect the lead wire 10°11 of the head-type line test transceiver 9. Connect one end of the call wire to the connection terminals Tc and Tdt at the other end, put the head spring 12 over your head, and use the transmitter 13 and receiver 14 to connect the call wire L.
While having a meeting with the call control personnel via a and Lb, the call control personnel pull out the drawer l! of the oscillator 7! 015, and the field worker connects the probe connector 18 of the probe lead wire 17, one end of which is connected to the connection terminal Td of the telephone core wire 1b, to the core wire L.
Connecting terminal T3 of any core wire 3 among groups 1 to In. T3
The field workers had to check the audible signals and compare them line by line.

[Problem to be solved by the invention] As described above, in the conventional cable line core comparison work, cooperation between the call comparison personnel at one end and the field work personnel at the other end is indispensable in order to verify each end of each line one by one. Therefore, if the field work personnel are delayed in arriving at the field due to traffic congestion or trouble, the call control personnel will be forced to wait needlessly.

This problem becomes even more serious when the same call comparison staff has a tightly packed schedule for conducting fiber comparison work with other field workers. Furthermore, since a signal sound is sent to each core wire and the identification signal is the same, multiple core wires cannot be checked at the same time, and the wire comparison work is time consuming as it has to be done line by line.In cases such as underground cable wiring, manholes are used. Therefore, the amount of time the traffic is disrupted will be prolonged.

SUMMARY OF THE INVENTION In view of the drawbacks of the conventional fiber comparison work for cable lines, the present invention seeks to provide an oscillator for comparing multiple fibers, which allows field workers to compare and confirm multiple fibers at the same time.

(2) Configuration of the Invention [Means for Solving the Problems] The oscillator for multiple fiber comparison according to the present invention has an oscillation section and simultaneously outputs a plurality of audible signals by oscillation. One end of each of parallel pairs corresponding to the plurality of audible signals is connected to the signal generating section, and output terminals each of which can be freely connected to the cable core wire to be contrasted are formed at the other end, and each of the parallel pairs is connected to the signal generating section. The other end of the branch connection wire, which has one end branch-connected to a single line, is connected to the positive side of each DC power supply, while the ground connection wire, which has one end connected to the negative side of each DC power supply, is connected in parallel and the other end is grounded. By forming a ground terminal that can be freely connected to the wire and simultaneously sending out a signal sound that can identify a plurality of cable cores, it is possible to confirm a plurality of cable cores at once and identify the polarity of each.

[Embodiment] A first embodiment of the present invention using audible signals of the same frequency will be described with reference to FIG.

This figure is a block diagram showing the configuration of an oscillator A for comparing multiple fibers according to the present invention. In the figure, reference numeral 8 denotes an audible signal generation section including an oscillation section 19 that oscillates an audible signal of a constant frequency and a chopper 20 that cuts off an audible signal current at regular intervals, and 21 and 22 a parallel pair of wires 23 connected in parallel to the oscillation section 19. and 24, corresponding output parallel pairs 1i125 and 2
6, a coupling transformer that mutually inductively couples each
27.28 are each upper side 25a of the output parallel pair wires 25°26,
Branch connection lines 29a and 30 with one end connected to 26am
Connect the other end of a to the positive side. For example, a DC type of about 10V [E is a ground terminal connected to the other end of the parallel connection of the ground connection 1i 129b, 30b connected in parallel with one end of the DC type 827.28, and 31 and 32 are the output parallel pair wires 25. 26 branch connection line 29a, interposed between the 3Qa branch point and the coupling transformer 21°22, the DC current of the DC type lTl27.
1.22 side coupling capacitor, 01.02 HaOtJ T 1 (7) Output terminal, Q3. Q4 is the output terminal of 0LIT2.

In the embodiment of the present invention, a case has been described in which the oscillation section 19 is used as one in the audible signal generation section B to oscillate and output a continuous audible signal and an intermittent audible signal of the same frequency. A plurality of oscillation units 19 that oscillate audible signals may be provided and the parallel pair wires 23 and 24 may be connected to each of the oscillation units 19, or a first
As shown in the figure, a plurality of parallel pairs 23 and 24 may be connected in parallel and a chopper 20 may be inserted between the parallel pairs 24.
In the figure, two parallel pairs 23 and 24 are arranged in parallel, but a large number of parallel pairs 23 and 24 are connected in parallel, and a chopper 20 that converts a continuous audible signal into an intermittent audible signal is inserted in the parallel pair 123, and the intermittent interval of each chopper 20 is divided. You can also adjust it in increments as much as possible.

[Function] Since the present invention is configured as described above, the core wires L1.1.2 and 13.2 in the cable line CL are connected in advance as shown in FIG. L
Connection terminal T1.4 at one end of each terminal T1. T2T 3. T
4 to the ou"ri output terminal 01.02 and 0UT2 output terminal 03.04 to the oscillator of the present invention, respectively, connect the connecting terminal Tα of one end of the ground wire α to the ground terminal E, and connect the other end to the ground G. After grounding, the oscillator A is operated to send a continuous audible signal of, for example, 1 KHz to 0UT1 and an intermittent audible signal (i) to 0UT2.

In this way, the field work personnel go to the field on the other end side of the cable line CL.

Next, connect the connector 2a at the 3rd end of the lead wire of the head type line test transceiver 1 that you brought with you to, for example, the connection terminal T3', put the head spring 4 on your head, and connect the connector 3a at the 3rd end of the lead wire to the connection terminal T4'. Connecting. Then, if the intermittent audible tone sent to 0UT2 can be heard on the handset 6, the connector 2a
The core wires connected by 3a and 3a constitute a pair of core wires L3
You can confirm that it is L4. However, at this time, the core wires L3 and L4 have not yet been identified separately.

Continue to connect the connector 3a of the lead wire 3 as shown by the dotted line in FIG.
If it is removed from the connection terminal T4' and grounded to the ground G, the ground wire α → earth connection terminal Tα → earth terminal E → DC current [128 → branch connection 113]
0 → Output parallel pair I! 26 upper line 26a → output terminal 03
→ Connection terminal T3 → Core wire L3 → Connection terminal T3' → Connector 2
By forming a series of closed circuits from a to lead wire 2,
Since a direct current flows through the carbon transmitter 5, if you blow strongly into the carbon transmitter 5, for example, you can hear the sound on the receiver 6, and the transmission goes through.In that case, the connection should not be changed. The core wire 2a is connected to the core 1! which is connected to the output terminal 03 of the oscillator A. You can confirm that it is L3. On the other hand, while connecting the connector 3a to the connecting terminal T4', disconnect the connector 2a from the connecting terminal T3' and connect it to the ground G.
If there is a ground fault, the coupling capacitor 32 of the oscillator A will cut off the DC current of the DC power supply 28, so that transmission will not be possible, and the core wire to which the connector 3a is connected will be connected to the output of the oscillator A. You can confirm that the core wire connected to terminal 04 is 4.

Similarly, in FIG. 2, the core wire L1 and the core wire L2 can be confirmed.

(3) Effects of the Invention Thus, the present invention enables comparative confirmation of cable cores in telephone lines, etc., which is efficient and reduces work time. Moreover, once the oscillator of the present invention is set at one end of the cable line, comparison can be made only by working at the other end of the cable line, so unlike conventional work, the number of personnel required for comparison calls can be saved. It has excellent effects, such as allowing field workers to work quickly and independently at their own pace.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is an explanatory diagram of cable core comparison work using the present invention, and FIG. 3 is an explanatory diagram of conventional cable core wire comparison work. A...Multi-core oscillator B...Audio signal generation section CL...Cable line E
...Earth terminal G...Ground la,
Lb... Core wires L1-L4... Core wires 01-o4... Output terminals Ta-Td, T1-T4. TI' ~ T4
'... Connection terminal Ta... Earth connection terminal α... Earth wire 1.9.
・・Head-type line test handset 2.3, 10.11・
... Lead wire 4.12 ... Head spring 5.14 ... Transmitter 6.13 ... Receiver 19
...Oscillating section 20...Chopper 21.22
...Coupling transformer 23.24...Parallel pair wires 25.26...Output parallel pair wires 25a, 26a...Upper line 27.28...DC N source 29a 30a...Branch connection line 29b, 30b...Earth connection wire 31.32...Coupling capacitor Figure 1

Claims (1)

[Scope of Claims] 1. Connecting one end of each of the number of parallel pairs of wires corresponding to the plurality of audible signals to an audible signal generation section having an oscillation section and simultaneously oscillating and outputting a plurality of audible signals; Forming output terminals that can be freely connected to the cable core wires to be compared, and connecting one end of each branch connection line to each line of the parallel pair of wires, and connecting the other end of the branch connection line to the positive side of each DC power supply, A multi-core oscillator 2 is constructed by connecting ground connection wires in parallel, one end of which is connected to the negative side of each DC power supply, and a ground terminal that can be freely connected to the ground wire at the other end, and the plurality of audible signals are The oscillator for comparing multiple fibers according to claim 1, wherein the oscillator for comparing multiple fibers is a continuous audible signal and an intermittent audible signal having the same frequency, and the oscillator for comparing multiple fibers according to claim 1, wherein the plurality of audible signals are audible signals having different frequencies.