US 5,517,493 A · Line setting and phase adjusting apparatus for synchronous multiplex communications

Abstract

The setting and phase adjusting apparatus for synchronous multiplex communications is provided which adjusts phase differences of main signals caused between a plurality of synchronous multiplexing sections and a line setting section during line setting, in which to reduce the scale of circuitry of the line setting section in a transmission device for carrying out multiplexing and line setting on large-capacity signals, a plurality of pointer modifiers are arranged on a shelf on which the line setting section is arranged. The pointer modifiers connect the line setting section to the respective synchronous multiplexing sections. The pointer modifiers are supplied with multiplexed signals of respective signal series whose data head positions are shifted from one another. The head positions of these signals are synchronized with a timing signal from a timing generator by the pointer modifiers. Line switching is then effected by time switches and a space switch.

Claims7

Dependent claims

A line setting and phase adjusting apparatus in combination with a transmission system for synchronous multiplex communications, for adjusting phase differences of main signals transmitted between a plurality of synchronous multiplexing means and line setting means, caused during line setting, the apparatus comprising:

a plurality of synchronous multiplexing means arranged on a plurality of shelves, respectively, for synchronously multiplexing signals received therein and outputting multiplexed signals;
line setting means arranged on a single shelf;
and
a plurality of pointer modifying means arranged on said single shelf on which said line setting means is arranged, said plurality of pointer modifying means connecting said plurality of synchronous multiplexing means, respectively, to said line setting means, said plurality of pointer modifying means receiving the multiplexed signals from respective synchronous multiplexing means, and said plurality of pointer modifying means including means for synchronizing data head positions of the signals supplied from said plurality of synchronous multiplexing means, with each other.

1 more element

A line setting and phase adjusting apparatus in combination with a transmission system for synchronous multiplex communications, for adjusting phase differences of main signals transmitted between a plurality of synchronous multiplexing means and line setting means, said phase difference being caused during line setting, the apparatus comprising:

a plurality of synchronous multiplexing means arranged on a plurality of shelves, respectively, for synchronously multiplexing signals received therein and outputting multiplexed signals;
line setting means arranged on a first shelf and including a space switch for executing line setting;
and
a plurality of pointer modifying means arranged on said first shelf on which said line setting means is arranged, said plurality of pointer modifying means connecting said line setting means to said plurality of synchronous multiplexing means, respectively.

1 more element

Dependencies are inferred from the claim text.

Line setting and phase adjusting apparatus for synchronous multiplex communications

Life of this patent

Line setting and phase adjusting apparatus for synchronous multiplex communications

Life of this patent

Abstract

Claims7