NetTek YBT1E1 T1 & E1 Circuit Tester User Manual
3- 1
Connecting to a Signal
There are several ways to connect the NetTek YBT1E1 to a T1 or E1
circuit within the base station environment. Each type of connection
allows you to test a different aspect of functionality.
Base station
equipment
Channel
Service
Unit
(CSU)
Network
Interface
Unit (NIU)
Tx
Tx
Rx
Demarcation
Telco
Wireless
operator
DSX
1
panel
Rx
DSX
2
panel
Figure 3- 1: Typical base station showing network interfaces
Making a Monitor Connection
This is the most common type of connection to a DSX service panel.
With this configuration, you can use the YBT1E1 to monitor either
the network side or the customer side of the data stream, without
removing the line from service. This configuration does not transmit
data, therefore it does not block communications on either side.
Use this configuration to detect errors on the line, such as Bipolar
Violations (BPV) and CRC (Cyclic Redundancy Check) errors, or to
perform bit error-rate testing if a known test pattern is being
received.
Summary of Contents for NetTek YBT1E1
Page 4: ......
Page 8: ...Table of Contents iv NetTek YBT1E1 T1 E1 Circuit Tester User Manual...
Page 12: ...General Safety Summary viii NetTek YBT1E1 T1 E1 Circuit Tester User Manual...
Page 16: ...Preface xii NetTek YBT1E1 T1 E1 Circuit Tester User Manual...
Page 17: ...Getting Started...
Page 18: ......
Page 40: ...Getting Started 1 22 NetTek YBT1E1 T1 E1 Circuit Tester User Manual...
Page 41: ...Operating Basics...
Page 42: ......
Page 56: ...Operating Basics 2 14 NetTek YBT1E1 T1 E1 Circuit Tester User Manual...
Page 66: ...The Measurement Results Windows 2 24 NetTek YBT1E1 T1 E1 Circuit Tester User Manual...
Page 67: ...Reference...
Page 68: ......
Page 92: ...Testing a Circuit 3 24 NetTek YBT1E1 T1 E1 Circuit Tester User Manual...
Page 93: ...Appendices...
Page 94: ......
Page 100: ...Appendix A Specifications A 6 NetTek YBT1E1 T1 E1 Circuit Tester User Manual...
Page 110: ...Appendix C Diagnostic Self Tests C 4 NetTek YBT1E1 T1 E1 Circuit Tester User Manual...
Page 113: ...Index...
Page 114: ......