Transmission apparatus
First Claim
1. A transmission apparatus comprising:
- a main signal line block for transmitting a main signal via lines and;
a monitor/control block for monitoring state of said apparatus and lines by collecting line switching information supplied from each unit which constitutes said main signal line block and controlling the switching operation between a working line and a protection line in said main signal line block;
wherein said main signal line block and said monitor/control block are connected by an ATM link;
said main signal line block includes a line switching information collecting portion for collecting line switching information supplied from each unit, and an ATM cell transmitter/receiver for transmitting an ATM cell in which said line switching information is mapped to said monitor/control block via said ATM link and receiving an ATM cell which is transmitted from said monitor/control block;
said monitor/control block includes an ATM cell transmitter/receiver for receiving an ATM cell which is transmitted from said main signal line block and transmitting an ATM cell in which predetermined information is mapped to said main signal line block via said ATM link.
1 Assignment
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Accused Products
Abstract
A transmission apparatus comprises a main signal line block for transmitting a main signal and a monitor/control block for monitoring state of the apparatus and lines by collecting line switching information supplied from each unit which constitutes the main signal line block and controlling the switching operation between a working line and a protection line. The main signal line block and the monitor/control block are connected by an ATM link. An ATM routing unit in the main signal line block collects line switching information supplied from each unit and maps the line switching information in data portion of an ATM cell and transmits the ATM cell to the monitor/control block via the ATM link.
38 Citations
6 Claims
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1. A transmission apparatus comprising:
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a main signal line block for transmitting a main signal via lines and; a monitor/control block for monitoring state of said apparatus and lines by collecting line switching information supplied from each unit which constitutes said main signal line block and controlling the switching operation between a working line and a protection line in said main signal line block;
wherein said main signal line block and said monitor/control block are connected by an ATM link;said main signal line block includes a line switching information collecting portion for collecting line switching information supplied from each unit, and an ATM cell transmitter/receiver for transmitting an ATM cell in which said line switching information is mapped to said monitor/control block via said ATM link and receiving an ATM cell which is transmitted from said monitor/control block; said monitor/control block includes an ATM cell transmitter/receiver for receiving an ATM cell which is transmitted from said main signal line block and transmitting an ATM cell in which predetermined information is mapped to said main signal line block via said ATM link. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification