公开(公告)号：WO1995007580A1

公开(公告)日：1995-03-16

申请号：PCT/US1994009169

申请日：1994-08-11

Applicant: INTEGRATED NETWORK CORPORATION

Inventor： INTEGRATED NETWORK CORPORATION ,  EMERSON, Earl, A. ,  DESAY, Mahesh, P. ,  GONZALEZ, Henry, J. ,  HONG, Kyung-Yeop ,  SWIM, Martin, L.

IPC: H04L01/18

CPC classification number: H04Q3/00 ,  H04J3/14 ,  H04L1/08 ,  H04Q11/04

Abstract: In a time division multiplex digital communication system, access devices are capable of generating and detecting data sequences that are normally suppressed by end user equipment for establishing in-band communications between the access device and selected intelligent channel units (ICU's). In-band communication is initiated by transmitting a sequence comprising a plurality of first bytes for preventing inadvertent initiation of maintenance operations for digital devices in a particular time slot, followed by a plurality of second bytes in said time slot. In-band communication is established when the selected ICU receives a sequence comprising a plurality of said first bytes, a plurality of bytes which identify the select device and a plurality of said second bytes. Once established, in-band communications can then be used to accomplish automated provisioning, performance reporting, status reporting, alarm reporting as well as other important functions.

Abstract translation: 在时分复用数字通信系统中，接入设备能够生成和检测由终端用户设备正常抑制的用于在接入设备和所选择的智能信道单元（ICU）之间建立带内通信的数据序列。 通过发送包括多个第一字节的序列来启动带内通信，用于防止在特定时隙中数字设备的意外启动，随后在所述时隙中的多个第二字节。 当所选择的ICU接收包括多个所述第一字节的序列，识别选择装置的多个字节和多个所述第二字节时，建立带内通信。 一旦建立起来，可以使用带内通信来完成自动配置，性能报告，状态报告，报警报告以及其他重要功能。

公开(公告)号：WO1995015630A1

公开(公告)日：1995-06-08

申请号：PCT/US1994012855

申请日：1994-11-08

Applicant: INTEGRATED NETWORK CORPORATION

Inventor： INTEGRATED NETWORK CORPORATION ,  EMERSON, Earl, A. ,  GONZALES, Henry, J. ,  HONG, Kyung-Yeop

IPC: H04L01/24

CPC classification number: H04L1/247 ,  G06F11/1402 ,  G06F11/22 ,  G06F13/38 ,  H04B17/401 ,  H04L1/241 ,  H04L1/243 ,  H04L1/244 ,  H04L43/50

Abstract: A system for isolating the direction of communication errors in the local loop of a digital data network is described. A Network Interface Unit (NIU) located at the customer premises typically has a loopback feature, allowing for Bit Error Rate Tests (BERT) to be performed on the local loop from a remote test system located on the data network. The NIU loopback test isolates transmission problems at the customer premises from problems on the local loop. The present invention adds test pattern generation capability to the NIU, allowing the remote test system to determine whether the transmission problem on the local loop is in the network to customer premises direction or in the customer premises to network direction.

Abstract translation: 描述了用于隔离数字数据网络的本地环路中的通信错误的方向的系统。 位于客户驻地的网络接口单元（NIU）通常具有环回功能，允许在位于数据网络上的远程测试系统的本地环路上执行误码率测试（BERT）。 NIU环回测试将客户端的传输问题与本地环路上的问题隔离开来。 本发明向NIU添加测试模式生成能力，允许远程测试系统确定本地环路上的传输问题是否在网络中到客户驻地方向或者在客户驻地到网络方向。