Title:
DIGITAL TRUNK DEVICE
Document Type and Number:
Japanese Patent JPH04344796
Kind Code:
A
Abstract:
PURPOSE: To reduce number of connection signal lines for a transmission selection signal and a reception selection signal and to realize a loopback test of the selection signal in a trunk simply and inexpensively in the same level as the actual operating mode.
CONSTITUTION: The device is provided with a 1st storage means 30 storing tentatively a transmission selection signal and a reception selection signal, a timing control means 22 generating an address required to access the 1st storage means 30 and generating a timing when channel information is sent, and a 2nd storage means 28 to register a data to be referenced when an address signal is applied to the 1st storage means 30.
Inventors:
MURAMATSU JUNICHI
Application Number:
JP11730391A
Publication Date:
December 01, 1992
Filing Date:
May 22, 1991
Export Citation:
Assignee:
OKI ELECTRIC IND CO LTD
International Classes:
H04Q3/42; H04Q11/04; (IPC1-7): H04Q3/42; H04Q11/04
Domestic Patent References:
| JPS6113899A | 1986-01-22 |
Attorney, Agent or Firm:
Toshiaki Suzuki