Connecting to a Signal
3- 4
NetTek YBT1E1 T1 & E1 Circuit Tester User Manual
Making a Loopback Connection
Use this type of connection to retransmit the incoming signal back to
the point of origin through the NetTek YBT1E1. Looping back is
virtually equivalent to hard wiring the receive side of the line to the
transmit side of the line while allowing the NetTek YBT1E1 to make
measurements on the received data.
To loopback a circuit through the NetTek YBT1E1, do the following:
1.
Select the
Loopback
radio button.
2.
Connect the RJ48-to-Bantam Y cable,
RJ48-to-Alligator Clip
Cable, or RJ45 to BNC cable to the YBT1E1 Line Interface.
3.
Connect the
Transmit
Bantam plug, alligator clips, or BNC
connector to the
IN
or
OUT
side of the service access, depending
on the circuit you want to terminate. See Figure 3--4.
4.
Connect the
Receive
Bantam plug, alligator clips, or BNC
connector to the other side of the line for monitoring purposes.
5.
Refer to
Testing a Circuit
on page 3--7 for how to configure the
YBT1E1 Tester to take measurements.
MON
OUT
IN
DSX
X
IN
OUT
MON
From CSU
To CSU
Figure 3- 4: Typical connections for loopback mode
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: ......