Browse Prior Art Database

Local Area Network Station Connector

IP.com Disclosure Number: IPCOM000043035D
Original Publication Date: 1984-Jul-01
Included in the Prior Art Database: 2005-Feb-04
Document File: 2 page(s) / 64K

Publishing Venue

IBM

Related People

Annunziata, EJ: AUTHOR [+2]

Abstract

This article describes a wiring topology that allows multiple stations to be connected to a single local area network (LAN) lobe serving an office or the like. The wiring topology enables low entry users to configure a LAN system without resorting to prominent wiring and wiring closets. The wiring topology has the following characteristics: (1) Low insertion loss (2) Provides DC isolation between the station connected to the device and other stations on the ring. (3) No internal power supply is required. (4) Designed with special connectors that provide automatic wrap capability and self-terminating features. (5) Permits phantom drive to be effective not only within the unit but to the wiring concentrator when used to extend the lobe.

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Local Area Network Station Connector

This article describes a wiring topology that allows multiple stations to be connected to a single local area network (LAN) lobe serving an office or the like. The wiring topology enables low entry users to configure a LAN system without resorting to prominent wiring and wiring closets. The wiring topology has the following characteristics: (1) Low insertion loss

(2) Provides DC isolation between the station

connected to the device and other stations on the

ring.

(3) No internal power supply is required.

(4) Designed with special connectors that provide

automatic wrap capability and self-terminating

features.

(5) Permits phantom drive to be effective not

only within the unit but to the wiring

concentrator when used to extend the lobe.

(6) Permits open wire detection to be effective

between the device and the station as well as

between adjacent devices or to the wiring

concentrator. Fig. 1 shows a star wired ring network with offices 1, 2 and 3 connected via lobe segments 4, 5, and 6 to a common wiring concentrator 7. Lobe segment 4 is connected to office 1 via established communication link (ECL) receptacle 8. Similarly, lobe segments 5 and 6 are connected to office 2 and office 3 via ECL receptacles 9 and 10, respectively. Each of the offices contains multiple stations which are interconnected via single station connectors (SSCs). Fig. 2 shows a wiring schematic for the three SSCs connecting the stations 11, 12 and 13 in offi...