DE1067875B - Circuit arrangement for direction selector - Google Patents

Description

The invention relates to a circuit arrangement for directional selectors without zero position with storage the marking in assigned setting sets, such as those in telecommunications, in particular telephone systems are used in remote dialing systems for directional selection.

With such directional selection stages, the case can very often occur that the voter at the time of his Allocation is already on a line connection that corresponds to the line bundle leading in the desired direction listened to. Since in the known circuit arrangements for this direction selector a Directional marking is only ever done on the first bundle step, the selector has to do this one after the other after a setting on a line belonging to the same bundle takes up almost a full cycle because each bundle can only be searched from the first step. This leads to increased Wear of the voter brushes and engines causes considerable unrest in the office and requires an increased amount of time required to establish a connection, which is not inconsiderable.

There are also circuit arrangements for direction selectors with step-by-step marking of the Voter known from memory, z. B. with phase marking, but require these marking methods complex electronic switching means.

The invention has the object of eliminating the disadvantages mentioned, and it has the effect of without using electronic marking means, by making each bundle step equal Marking step. It is characterized by the fact that the voter has a tion provided voter arm is granted a marking potential in a known manner, which is also in in a manner known per se on each step of the bundle to be marked and through the one im Adjustment set of the selector provided switching means becomes effective when the selector is on any Connection of a line belonging to the line bundle in the desired direction is available, however does not become effective and thereby allows another switching means to become effective when the marking the direction selector continues to run over the unmarked trunk group for the purpose of searching for the desired trunk group.

According to a further feature of the invention, a further switching means is provided which is dependent on from the fact that the direction selector in each Searched marked residual cable bundle does not find a free exit, repeat the search process of the direction selector, which extends to the same trunk group just searched.

Circuit arrangement for direction selector

Applicant:

Standard electrical system Lorenz

Corporation,

Stuttgart-Zuffenhausen,

Hellmuth-Hirth-Str. 42

Willy Bergholtz, Stuttgart-Zuffenhausen,

and Franz Geißl, Munich,
have been named as inventors

In a further embodiment of the invention, switching means are provided which are indirectly dependent from the marking of a bundle of lines the bundle of lines marked in this direction in the direction of rotation of the direction selector block the following trunk groups against checking and in such a way as Mark spinning bundle.

The invention is described on the basis of an exemplary embodiment that its application in a Remote dialing system shows. In

Fig. 1 is an overview plan shown in
Fig. 2 is detailed;

Fig. 3 shows an example of a circuit arrangement for the setting set of a
according to the invention.

In Fig. 1 KA means a node office, HA a main office, ZA a central office.

In FIG. 2, a connection from a subscriber Tn 1 of the node exchange KA 1 via the main office HAl, the central offices ZA 1 and ZA2, a node exchange KA 2, not shown, to a subscriber Tn 2, also not shown, is shown in simplified form. The setting of the direction selector RW in the node office KA is carried out by the zoner VZR connected to the counting pulse generator ZIG via the search selector SW after determining the direction number from the dialing information transmitted by the subscriber Tn 1. The direction selector / is set in the main office HA. RWH, II. RWH through the main office memory SPH, which is sent via search selector SW to the direction selector /. RWH is switched on in the main office, after determining the direction number from the dialing information of the sub-

Direction selector

909 640/100

3 4

taker's TnI. A relay Z is closed in the main office memory, relay An speaks

Werter Um assigned, which the information of the part about -, AN, ph2, hl, xl, earth on and switches on

receiver TnI in the direction numbers of the direction relay D via -, D, b2, pl, anl, earth. This

voters in the main office revalued. The controller closes its contacts dl ... d 4, and relay M checks

Direction selector in the main office through the main office 5 depending on the memory Sp via MZ

memory takes place in a manner known per se with the help of the relays I, II in the manner already described

of setting records Ji-S ". Also in the node office KA , the transmitted marking number (in the present case is

as well as in the main office HA the same arrangement z. B. Relay I energized alone, relay II de-energized)

can be used for the direction selector. over -, M, dl, 11, Vl, 212, line 1 to the over the

The invention will now be described in more detail with reference to FIG. 3 io arm / the direction selector RW lying on the ground, which a setting set ES under path marking steps in the marked line bundle, leave all not related to the essence of the invention relay M speaks in the case, that the sounding Markiererde shows details that is to \ ^r fore sub ject of, before the response of the relay £ 1 and switching operations are not required. prevents the ml by closing its contact

A line bundle is marked 15 when the dialer starts up and when the contact is opened

by storing a marking number MZ from in2 the response of the relay El; as auxiliary relay for

Memory Sp her. Relay M speaks relay MH via -, MH II, MHI, m3,

In the below described in more detail from earth to, and. switches relay L via -, L, mh 1, ph I, the example is marked, for example in cm2, earth. Relay U speaks about -, U, 15, 1/4, known way through the combination of the switch 20 to 3, earth, and the relays M and MH fall after two relays I and II. Either relay I is one another, the latter delayed by short-circuiting alone or relay II alone, or relay I and II winding MJiI through the contact mh2, from; Relay at the same time or ultimately neither of the two. LH speaks via - , LH, 13, mh3, an4, earth on. Im pulled. The relay or relays that are in each case hold the test circuit of the direction selector RW in a holding circuit (not shown), 25 successively the relays P and PJi or via earth, until the marking is evaluated. The following d4, 14, Wi, Pll, PI, x2, c-arm against voltage on characteristic operating cases are possible: the test wire of the occupied line and via earth, d4, ₁ P .. 14, p2, PH, PI etc. to , and the blocking of the occupied " ^a th line takes place in a known manner by the

At the time of his occupancy, the voter has 30 contact ph 2.

on a free port of a marked bundle; The relay U indicates that the marker does not start, but occupies the line immediately. line 2 associated trunk of the first · - and "P .. so that all - steps by its contact" in loading ^"a set of all previously fall horizontal pipes as a

At the time of its occupancy, the voter stands at 35 paces at which the direction selector should be shut down at an occupied exit of the marked line because there is no free exit in the bundle. The subsequent exits are also ked bundles found. The line is busy. The voter overflows, a free exit election first ended,
searching for the lines behind the marking step, the free selection ends before the first marking step

step of the next bundle, runs to the first The voter stands on an occupied step of the exit of the marked bundle and starts there marked bundle, and all following markers look for a free exit again. If all steps of this bundle are also busy.
Outputs of the marked bundle are occupied, over- The occupied direction selector causes the suit, he runs the bundle and is stopped, or he can switch the relay ON, as described above; Relay D picks up, in another bundle specified by the corrector, relay M checks, as also described above, looking for a free line. Marking arm / direction selector. It is again. ρ .. assumed that the relay I as marking identification

sign attracted alone, relay II has dropped out. That

The selector stands on a line connection in 50 relay M checks the contacts 1/1, 2/2 and the

an unmarked bundle, runs when occupied on line 1 to the marker earth on arm f and

and looks for someone in the highlighted trunk group. Relay MH responds as described above,

free exit. switches on relay L , which switches relay M through

If all lines in the marked bundle are switched off, contact II is switched off. Relay MH drops with a delay

sets, then two different modes of operation 55 are activated, relay U speaks via -, U, 15, 1/4, an3, earth.

possible: After relay MH drops out , relay LH also speaks

ο λ τ- · VVi ι r ,, 1 TT7-11 -j an. The selector starts after the relay MH drops out

3. 1. Overflow is provided, and the _{voter will and first check the remaining} lines of the mar-

from the searched bundle to a through the _{um- ^^ LdtungsbündelS; which he} runs over as they all

Values identified by a different marking digit _are 6o occupied as required.

drew bundle switched over, in which he followed _{Ef big to the first marking step of the} .

looking for a loyal line. the following bundle on which it is stopped,

3. 2. The voter is on the first step of which the line election is initially ended. Relay M

next trunk group shut down and leads speaks via -, M, dl, 11, e2l3, ell3, ul, line 2,

do not perform a second search. 65 / -Arm, earth on and put the voter to a standstill. relay

₁ -p .. MH responds in a known manner, relay JiI speaks

^τ · ^tal1 over -, ElII, lh4, e2 \ T, m / t4, phl, an2, earth an

The voter stands on a free line connection and drops relay M through e 1/3. Relay MH drops

End in the marked cable bundle. The direction through m3 and throws relay L through in turn

Selector RW is occupied, the contact xl of one is not released, relay LH also drops through 13 . Of the

The voter starts up again and adjusts to the first of the lines in the highlighted bundle that have not yet been checked. Here it is first stopped by relay M, which responds in the known way. Relay MH responds and brings relays L and £ 2 or through mhl and mhS. After the relay MJi has dropped, the selector starts up again and searches for a free line in the area of the marked bundle that has not yet been checked; if he finds one, the relays P and PH respond in a known manner, and the voter is shut down.

However, if all the following lines in the selected bundle are busy, the status follows »3. Case «a.

3. Case

The assigned direction selector RW is on a line connection in an unmarked bundle. Relay M cannot respond because the marker line is not connected. Relay E 1 therefore responds first and the voter starts up. Relay £ 1 holds over -, £ 111, eljl, Ih2 (mhl ·), phl, an2, earth. When accruing the voter on the first line connection in the z. B. the bundle marked by the activated relay I responds to relay M in the manner already described, stops the selector, brings relay MH to pick-up, and this switches relay £ 2 via -, £ 2, IhZ, mh5, elß, an5, Earth one; Relay £ 2 maintains itself via contacts e 2/1, an5 . If the selector finds a free exit in the marked bundle, the further processes follow, as described under case 2.

If, however, all lines in the marked bundle are busy, then the selector runs on the first step of the marked bundle, is shut down in a known manner, relay E 1 drops out, and two different functions can now occur.

3.1. Overflow is provided. In this case, the memory receives a switching criterion via -, B, el / 5, e 2/6 ... Sp, earth, whereby relay B receives fault current. The previously stored marking number is deleted in a known manner, not shown, and a new marking (for example excited by relay II alone) is entered from the memory Sp. An internal revaluation can also be carried out without a function of the memory. The voter starts up again and looks for a free line in the bundle marked by the marker that has now been set, in the manner already described.

3. 2. There is no overflow, the selector should be shut down and the setting set enabled will.

In this case the memory receives a switching criterion via -, B, el / 5, e2 / 6 ... Sp, earth, whereby relay B picks up and holds itself via & 3, d 4, earth. Relay B drops relay AN and relay D , relays £ 2, L, and possibly I, II and LH also drop out. Relay X is thrown off by the setting set in a manner not shown, relay B drops out after contact d 4 is opened, and the selector stops where it is.

The setting set is released when relay X drops out and is available to other direction selectors when relay B drops out.

Claims (3)

Patent claims: 1. Circuit arrangement for direction selector with intermediate storage of the marking and without zero position in remote dialing systems for telecommunications, in particular telephone systems, in which switching means that become effective depending on the busy state of all lines of a line bundle cause a reversal of the direction selector to another line bundle, characterized in that the voter manner known per se a Markierpotential is issued via a provided for the marking Wählerarm (f) in which the rests in a likewise known manner on each step to be marked bundle and through which a provided in the adjustment set (ES) of the selector switching means (M ) becomes effective if the voter is on a connection of a line belonging to the line bundle to be searched and which initiates the subsequent search selection in the marked bundle, but does not take effect and thus allows another switching means (£ 1) to become effective if the marking u It remains that causes the direction selector to continue running over the unmarked trunk group in order to find the respectively desired marked trunk group. 2. Circuit arrangement according to claim 1, characterized in that a switching means (£ 2) is provided, depending on the fact that the direction selector is searched in each case marked trunk group does not find a free exit, again initiates a search process of the direction selector, which is on the same, just searched Line bundle extends. 3. Circuit arrangement according to claim 1 or 2, characterized in that switching means (U, G) are provided which, in indirect dependence on the marking of a bundle of lines, block the bundle of lines marked in the direction of rotation of the direction selector against checking and thus identify them as spinning bundles . Considered publications:
German interpretative document No. 1 016 764. 1 sheet of drawings © 909 640/100 10.59