JPS6153901B2 - - Google Patents

Description

[Detailed description of the invention]

First, an overview of the network configuration of the electronic exchange will be explained below. A network refers to a communication path network that constitutes communication paths and signal paths between subscribers and various trunks, and includes a line link network (LLN) that accommodates subscribers and a trunk link network that accommodates trunks. (TLN). As shown in FIG. 1, the LLN and TLN each consist of four stages of small crossbar switches in an 8x8 grid, and are connected to each other by a junctor, forming a total of eight stages of communication paths. In addition, LLN is a line switch grid (LSG) formed by a primary switch and a secondary switch, and a line switch grid (LSG) formed by a tertiary switch (or a junctor primary switch) and a quartic switch (or a junctor secondary switch). Consists of Tsudo (LJSG). The TLN consists of a trunk switch grid (TSG) formed by a primary switch and a secondary switch.
It consists of a trunk junction switch grid (TJSG) formed by a secondary switch (or jumper primary switch) and a quaternary switch (or jumper secondary switch). The wiring between each switch is the A link between the primary switch and the secondary switch, the B link between the secondary switch and the tertiary switch, the C link between the tertiary switch and the 4th switch, and the 4th switch and the 4th switch. The wiring between switches is called a junkter. The switches are connected through a horizontal path (input level) and a vertical path (output level) as shown in Figure 1. A grid is a constituent unit of a network, and consists of 8 small crossbar switches (primary or tertiary) and 8 small crossbar switches (secondary or quartic), 16 in total, interconnected. One grid has 64 input terminals and 64 output terminals each. This grid is given different names such as LSG, LJSG, TSG, and TJSG depending on its purpose, but all grids are exactly the same two-stage link switch. The network is composed of these grids,
1LLN consists of 32 LSGs and 16 LJSGs, 1
TLN consists of 16 cards each for TSG and TJSG. Therefore, the number of terminals in 1LLN that accommodates subscribers is
2048 terminals, the number of terminals in 1TLN that accommodates trunks is
It becomes 1024 terminals. Next, the A link and C link will be explained. The A link and the C link are the wiring between the primary switch and the secondary switch or the tertiary switch and the quaternary switch of the LLN or TLN, and their connection relationships are as follows. 1st switch number = 2nd switch input level number (3rd switch number) = (4th switch input level number) 1st switch output level number = 2nd switch number (3rd switch output level number) = (4th switch output level number) number) In other words, the relational expression between the switch and the level is αβ=β
It is α. Next, the B link will be explained. The B-link is the wiring between the secondary switch and the tertiary switch of the LLN or TLN, and the B-link of the LLM takes a reciprocating equation at the output side of the secondary switch and has a 2:1 convergence. The 64 output terminals housed in one grid are assigned switch numbers 0, 1, 2, 3, and 4.
Divide into 16 terminals each accommodated in 5, 6 and 7. Next, one terminal is extracted from each of these 16 terminals, and a total of four terminals are used as a unit for distribution among the grids. This kind of distribution unit can be made into 16 groups (64 terminals/4 terminals = 16 groups), so
The four terminals in each group are distributed to each of the 16 grids on the other side. Table 1 shows the specific B link allocation relationship. From Table 1, the B link has the following regularity, and from this regularity, the grid number, switch number, and level number of the other party can be determined.

【table】

[Table] From the connection relationship of B-links, as shown in Figure 2, for example, when viewed from one grid, there are four B-links that extend to a specific partner grid. This shows that there are four paths between the accommodated 1st input terminal and the 1st output terminal accommodated in the quaternary switch of the LJSG. The term multiplicity MN is used to distinguish between these four types of connections. A connection with a multiplicity of 0 means a connection between a secondary switch and a tertiary switch.
A connection that passes through SW0 or SW1,
Similarly, multiplicity 1 is SW2 or SW3, multiplicity 2 is SW4
or SW5, and multiplicity 3 is a connection that passes through SW6 or SW7. Note that this relationship also applies to TLN. If a fault such as continuity or crosstalk occurs during the connection of the communication path (A link - B link - C link - Junctor - C link - B link - A link) shown in Fig. 1 above, the following situation shown in Fig. 3 occurs. Information such as is typed out. [In Figure 3, the leftmost *...
Based on FLTCON-TEST, ERR (NON-HR), the pattern of the failure appears to be a poor call continuity test or disconnection failure in the LT connection. Also, the SG (switch group) ignores the TLN (trunk link network) side. ] For example, *...FLT CON−TEST ERR
(NON-HR) This performs failure search, and this type-out message includes information on the primary side and 4th side of each network.
Only the next side is typed out, and previously,
The path information of 1SW and 2SW, 2SW and 3SW, and 3SW and 4SW was analyzed using the following method. (1) Enter the G, SW, LV, and NM of the primary and quaternary sides using a type-out message as shown in Figure 4a. In Figure 4a, only the ◎ mark is typed out, and ○I to ○ta are analyzed. (2) Fill in the relevant parts of the AC link where αβ=βα as shown in Figure 4b. In Figure 4b,
Four locations indicated by arrows are analyzed. (3) Calculate the LV number from the other party's grid number as shown in Figure 4c. If the grid number is n, then 0~7G → n LV 8~15G → (n-8) LV 16~23G → (n-16) LV 24~31G → (n-32) Also in Figure 4 c, the arrow The four locations shown are analyzed. (4) As shown in Figure 4d, find the SW number from the multiplicity MN and the partner grid number.

[Table] Opponent grid number
〓 〓24〜32〓
When odd number SW
MN〓4

Claims (1)

[Claims] 1. An A link in which the primary (PSW) and secondary (SSW) accommodating subscribers are wired, and the tertiary (JPSW)
A line link network (LIN) consisting of a C-link with a secondary (SSW) and a quaternary (JSSW) wired, and a B-link with a secondary (SSW) and a tertiary (JPSW) wired, and another quaternary that accommodates the trunk. Another C link with (JSSW) and another tertiary (JPSW) wired, and another A link with another secondary (SSW) and another primary (PSW) wired with the latter tertiary ( A trunk link network (TLN) consisting of a B-link (JPSW) and another B link with a secondary (SSW) wired therein, and a junker with which the line link network (LIN) and the trunk link network (TLN) are wired. The switch and level relational expression αβ=βα holds between the A link and the C link, and the B link takes the reciprocating equation at the output side of the secondary switch and achieves a 2:1 convergence. In a network of electronic exchanges with
2, 1G-4, 1G-8, 1G-16 and 3 toggle switches for the primary switch 1S-1, 1S-
2, 1S-4, 3 toggle switches for primary input level 1IL-1, 1IL-2, 1IL-4, multiplicity
2 toggle switches for MN MN-1, MN-2 are grounded, and 4 toggle switches for 4th grit 4G-1, 4G- are installed to visually confirm the setting on the exit side.
2, 4G-4, 4G-8 and 3 toggle switches for 4th switch 4S-1, 4S-2, 4S-4
and 3 toggle switches for the 4th output level 4L-
1, 4L-2, 4L-4 are grounded, and has a plurality of green light emitting diodes and a plurality of red light emitting diodes on the input side and output side, respectively, and a resistor that satisfies the current limit value of these light emitting diodes. , a power supply circuit is provided with a battery adapted to the current limit value and a non-lock switch (NLSW) for saving the current consumption, and when the non-lock switch (NLSW) is pressed, the battery is switched to the resistor. On the inlet side, 5 green LEDs are supplied as a primary grid to represent up to 32 in binary. has a light emitting diode,
Bit 0 of the toggle switch for the primary grid, 1
bit and secondary bit (by flipping the toggle switches 1G-A, 1G-2, and 1G-4 for the primary grid, the 0th and 1st bits of the primary grid
The green light emitting diodes 1G-1, 1G-2, 1G-4 are the 1st and 2nd bits, and the red light emitting diodes 3IL-1, 3IL-2 are the 0th, 1st and 2nd bits of the tertiary input level. ,3IL-
The cathode (C) terminals are connected in parallel so that 4 lights up at the same time, and by turning down the 3rd bit of the primary grid toggle switch (1G-8 of the primary grid toggle switch), the 3rd grid lights up. The green light-emitting diode 1G-8 for the 0th bit of the tertiary switch, the red light emitting diode 3S-1 for the 0th bit of the tertiary switch, and the red light emitting diode 4 for the 0th bit of the 4th input level.
The cathode (C) terminals are connected in parallel so that IL-1 lights up at the same time, and the 4th bit of the toggle switch for the primary grid (1G-16 of the toggle switch for the primary grid)
By knocking down, the cathode (C) terminal is connected so that the 4th bit green light emitting diode 1G-16 of the primary grid lights up, and the relationship between the A link and the C link becomes the above relationship αβ = βα. By doing so, the primary switch is 2
It is connected to the next level and has three green light emitting diodes to represent up to 8 in binary as a primary switch, and the 0th bit, 1st bit and 2nd bit (1 Next switch toggle switch 1S-1, 1S-2, 1
By defeating S-4, the green light emitting diodes 1S-1, 1S-2, 1S-4 of the 0th bit, 1st bit and 2nd bit of the primary switch and the 0th bit and 1st bit of the secondary input level 2nd and 2nd bit red light emitting diodes 2IL-1, 2IL-2,
The cathode (C) terminals are connected in parallel so that 2IL-4 lights up at the same time, and it has three green light emitting diodes to express up to 8 in binary as the primary input level. The 0th bit, 1st bit, and 2nd bit of the toggle switch for Eye and second bit green light emitting diode 1IL-
The cathode (C) terminal is connected so that 1, 1IL-2, 1IL-4 lights up, and the 0 bit of the multiplicity toggle switch is used as the multiplicity MN to determine whether the other switch is odd or even. Eye MN-1
By defeating , the 1st bit of the secondary switch,
Red light emitting diode 2S-2, 1L-2, 3S-2 for the 1st bit of the primary output level, the 1st bit of the tertiary switch, and the 1st bit of the 4th input level.
The cathode (C) terminals are connected in parallel so that 4IL-2 lights up at the same time, and the 1st bit of the multiplicity toggle switch MN-2
By defeating , the second bit of the secondary switch,
Red light emitting diode 2S-4, 1L-4, 3S-4, 2nd bit of primary output level, 2nd bit of tertiary switch, and 2nd bit of 4th input level.
The cathode (C) terminals are connected in parallel so that 4IL-4 lights up simultaneously, and the output side has four green light emitting diodes to represent up to 16 in binary as a 4th grid. The 0th bit, 1st bit, and 2nd bit of the toggle switch for the grid (4G-1, 4G-2, 4G- of the toggle switch for the 4th grid)
By defeating 4, the green light emitting diodes 4G-1, 4G-2, 4G-4 of the 0th bit, 1st bit, and 2nd bit of the 4th grid and the 0th bit, 1st bit, and 4G-4 of the secondary output level are 2nd bit red light emitting diode 2L-1, 2L-2,
The cathode (C) terminals are connected in parallel so that 2L-4 lights up at the same time, and by turning down the 3rd bit of the 4th grid toggle switch (4G-8 of the 4th grid toggle switch), the 4th grid can be turned on. The cathode (C) terminal is set so that the 3rd bit green light emitting diode 4G-8 of the secondary switch and the 0th bit red light emitting diode 2S-1, 1L-1 of the secondary switch and the 0th bit of the primary output level are lit at the same time. They are connected in parallel, and the relationship between the A link and the C link is αβ=βα, so the quartic switch is 3
It is connected to the next output level and has three green light emitting diodes to represent up to 8 in ternary system as a 4th order switch.
Bit, 1st bit, and 2nd bit (4S-1, 4S-2 of the toggle switch for the 4th switch,
By defeating 4S-4, the green light emitting diodes 4S-1, 4S-2, 4S-4 of the 0th bit, 1st bit, and 2nd bit of the 4th switch and the 0th bit and 1st bit of the tertiary output level 1st and 2nd bit red light emitting diodes 3L-1, 3L-
Cathode (C) so that 2 and 3L-4 light up at the same time
The terminals are connected in parallel, and it has three green diodes to represent up to 8 in binary as a 4th output level switch, and the 0th, 1st and 2nd bits of the 4th output level toggle switch Bit (4L-1, 4L-2, 4L-4 of toggle switch for 4th output level)
By defeating the 0th bit of the 4th level,
Path information-network accommodation position characterized in that the cathode (C) terminals are connected in parallel so that the first and second bit green light emitting diodes 4L-1, 4L-2, and 4L-4 are lit at the same time. converter.