PT77305A - Apparatus for connecting digital terminals to a digital exchange - Google Patents
Apparatus for connecting digital terminals to a digital exchangeInfo
- Publication number
- PT77305A PT77305A PT7730583A PT7730583A PT77305A PT 77305 A PT77305 A PT 77305A PT 7730583 A PT7730583 A PT 7730583A PT 7730583 A PT7730583 A PT 7730583A PT 77305 A PT77305 A PT 77305A
- Authority
- PT
- Portugal
- Prior art keywords
- terminals
- information
- digital
- terminal
- exchange
- Prior art date
Links
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Appts. in a digital communication system connects digital terminals to a terminal junction point which in turn is connected to a digital exchange. The junction point contains a directing unit sending, in a first state, a flag signal to all terminals as well as to the exchange, this signal being utilised as filling-out information, and in its second state sending an information packet received from a terminal towards the exchange as well as to all terminals. The terminals contain units for sending out on information packet in response to the flag signal having been received a given number of times, the reception of the information pocket at the junction point resetting the directing unit to its second state. The terminals also contain a comparator for determining whether the packet information sent back from the junction point corresponds to the terminal's sum sent out packet information and for disconnecting the terminal in the opposite case. This gives multiple access to a digital subscriber line and enables the utilisation of the same terminal interface for both bus and star structures.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT7730583A PT77305B (en) | 1983-09-08 | 1983-09-08 | Apparatus for connecting digital terminals to a digital exchange |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT7730583A PT77305B (en) | 1983-09-08 | 1983-09-08 | Apparatus for connecting digital terminals to a digital exchange |
Publications (2)
Publication Number | Publication Date |
---|---|
PT77305A true PT77305A (en) | 1983-10-01 |
PT77305B PT77305B (en) | 1986-03-27 |
Family
ID=20083365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT7730583A PT77305B (en) | 1983-09-08 | 1983-09-08 | Apparatus for connecting digital terminals to a digital exchange |
Country Status (1)
Country | Link |
---|---|
PT (1) | PT77305B (en) |
-
1983
- 1983-09-08 PT PT7730583A patent/PT77305B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
PT77305B (en) | 1986-03-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM3A | Annulment or lapse |
Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 19990930 |