KR970031567A - DS64N service unit unit with high speed modem capability - Google Patents

Abstract

The present invention relates to a DS64N service unit device with a built-in high-speed modem function that can provide services such as high-speed data, high-speed facsimile, video, etc., in which service is rapidly increasing. It is possible to connect the high speed modem of subscriber side with 4W as the existing data service in channel self by accepting the medium for extension of distance in the package form in DS64N unit. Through V.11, V.10, V.28 or V.35 interface with subscriber terminal, device installation and facility simplicity, remote maintenance function by remote test function of subscriber modem in channel self, channel self Price reduction due to the elimination of the connector between the modem and modem Can bring

Description

DS64N service unit unit with high speed modem capability

Since this is an open matter, no full text was included.

1 is a configuration diagram of a DS64N service unit apparatus according to the present invention.

Claims (13)

Receive equalization means for predicting the transmission distance according to the input data level and data rate and automatically converting and compensating the filter value by the CPU control program; Demodulation means for reproducing data modulated by various modulation methods, descrambler means for decrypting encrypted data output from the demodulation means and reproducing the original data, and receiving data from the descrambler means V.11 connection means for connecting to the N × 64kbps portion of the DS64N, level conversion means for converting RS449 level data from the V.11 connection means to the TTL level for connection with the N × 64kbps portion, and using a PLL. Clock generation means for generating a system clock and a transfer rate of N × 64 kbps (N = 1 to 3) provisioned under control of the BCU; Therefore, time slot assignment means for allocating timeslots for receiving data, 2M connection means for DS64N units to which 2M data streams and signal streams are input and output from each trunk, and data from the level converting means and 2M connection means. Elastic buffer means stored by the clock generating means and the timeslot allocating means to form synchronous data for the system clock, scrambler means for encrypting data from the V.11 connection means, and encryption from the scrambler means. Modulation means for modulating the modulated data using a biphasic or bipolar scheme, transmission equalization means for connecting the modulated data from the modulation means to a subscriber station via a subscriber modem, and the demodulation means and the V.11 connection means. Pattern for error measurement of data connected between And means for generating a signal pattern for testing a bit error after loop looping between the generating means and the V.11 connecting means and the modulating means. The DS64N service unit apparatus according to claim 1, wherein the bit rate is adjustable by an operator's selection provision under the control of the BCU at 64 kbps from 64 kbps to 1920 kbps. 2. The DS64N service unit of claim 1, wherein the processor automatically recognizes this when the unit is inserted and automatically provisions start time slot and trunk information for the inserted unit. 4. The DS64N service unit device of claim 3, wherein the time slot allocation is performed continuously in a trunk. The method according to claim 1, wherein when the time slot assignment unit assigns the timeslot for the DS64N incorrectly, TSA_MIS (Time Slot Assignment Mismatch) information is displayed on the user terminal as 'Warring' and is being used for the DS64N. In case of wrong insertion of other unit into the timeslot, INS_FAIL (Insert_Fail) information is displayed as 'Warning' on the user operation terminal and DS64N service unit device which turns on all LEDs of the unit. 2. The DS64N service unit of claim 1, wherein the provisioning by the operator terminal has a number of time slot allocations to be used, a normal clock / inverted clock to eliminate transmission delay, a loopback type selection, and the like. The method of claim 1, wherein the high-speed modem portion is in the form of a DS64N unit package having a high-speed modem and an interface package, the V.10, V.11, V.28, V.35 interface according to the application of the package DS64N service unit device, characterized in that it can accommodate. 8. The DS64N service unit according to claim 7, wherein the unit package is designated as 60 pins of 30 pins at the top and bottom pins for connecting the N × 64kbps data generation part. Device. 8. The unit package of claim 7, wherein the unit package is connected to the other party's modem by 4W when accommodating the high speed modem, and uses a 25-pin or 37-pin connector directly at the V.11 connector when accommodating V.11. DS64N service unit device, characterized in that directly connected. The front surface of the DS64N unit is composed of a FAIL LED indicating a circuit pack failure, a Data LED indicating current service, and an LB LED that is turned on when loopback is performed to find a fault location. DS64N service unit device. According to claim 1, The loopback for the test of the DS64N unit is composed of LL (Local Loopback), RL (Remote Loopback), M-RL (Modem-RL) according to the position and the front of the unit again along the line and the line DS64N service unit device, characterized in that the test to the subscriber modem can be divided into IN / OUT test according to the operation of the switch. 12. The test circuit according to claim 11, wherein the test is performed by intensively constructing a test line using a 6-hole anti-tamper in a BMU, which is a maintenance unit of a common part of a channel self, and connecting the test line to the instrument. DS64N service unit device, characterized in that by setting the direction, using the operating terminal to select and execute the loopback function, and then using the test pattern from the instrument. 12. The method of claim 11, wherein the RL loopback uses a bit of bits a, b, c, and d of timeslot 16 signals on an E1 frame, and the M-RL loopback uses signals a and b of timeslot 16 times an E1 frame. DS64N service unit device, characterized in that using the b bits of, c, d. ※ Note: The disclosure is based on the initial application.