Alarm system for computer equipment connected in a network
First Claim
1. Alarm device for computer units (13a, 13b), which are connected in a twisted pair network, in which two or more conductors in the existing network are used for communication between different computer units, where the computer units are connected via the network to a common hub (3) so that a connection is obtained between each of the computer units via the hub (3), characterised in thatan alarm center (1) is operationally connected to the hub (3),at least two of the connectors not used for communication between the computer units (13a,13b), are connected to an address unit (11) in a first alarm unit (4), associated with one or more of the computer units,the alarm center (1) is arranged to generate a request to the address unit (11) in the first alarm unit (4),the address unit (11) in the first alarm unit (4) is arranged to report its address and status to the alarm center (1) upon said request, andthe alarm center (1) is arranged to activate an alarm when it cannot maintain contact with the address unit (11) in the first alarm unit (4).
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Accused Products
Abstract
The present invention concerns an alarm device for computer units (13a, 13b) which, via a network of twisted pair type, are connected to a common hub (3). The computer units (13a 13b) are arranged to be connected to a first alarm unit (4) corresponding to the respective computer unit. This incorporates an input (25) for connection to the hub, an output (23) for operational connection to a network board in a computer unit corresponding to the alarm unit, and a connection (22) for interconnection with a second alarm unit (5; 7) or a connection unit (10). In the device according to the invention, an alarm center (1) is operationally connected to the hub, which is arranged to transmit a request generated in the alarm center to the first alarm unit (4) and to notify the alarm center when a change occurs in the computer units (13a, 13b) associated with the alarm centers.
46 Citations
8 Claims
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1. Alarm device for computer units (13a, 13b), which are connected in a twisted pair network, in which two or more conductors in the existing network are used for communication between different computer units, where the computer units are connected via the network to a common hub (3) so that a connection is obtained between each of the computer units via the hub (3), characterised in that
an alarm center (1) is operationally connected to the hub (3), at least two of the connectors not used for communication between the computer units (13a,13b), are connected to an address unit (11) in a first alarm unit (4), associated with one or more of the computer units, the alarm center (1) is arranged to generate a request to the address unit (11) in the first alarm unit (4), the address unit (11) in the first alarm unit (4) is arranged to report its address and status to the alarm center (1) upon said request, and the alarm center (1) is arranged to activate an alarm when it cannot maintain contact with the address unit (11) in the first alarm unit (4).
Specification