Connector
Input mode
Switching between PDH Rx and DSn Rx is done in the SDH/SONET receiver
setup screen.
1. Select SDH Rx or SONET Rx check box.
2. Touch STM-xx, STS-xx, or OC-xx button in the navigation area.
3. Use drop down menu at right bottom to switch SDH or SONET. Selecting
the SDH displays PDH Rx on Rx screen. Selecting the SONET displays
DSn Rx on Rx screen.
4. Touch Rx button in the navigation area.
5. Select PDH Rx or DSn Rx check box.
6. Clear SDH Rx or SONET Rx check box.
7. Touch E1 radio button. Touching Off radio button disables the receiver.
This screen allows you to make the physical setup of the PDH receiver in E1
mode. It can also be used to inspect the current status of the selected port.
The configuration options available in the setup area of the screen are
described below. The status information is described in a separate section.
Select the physical type of the relevant output connectors located on the
back panel of the instrument. Choose Unbalanced to link to the
corresponding unbalanced connector, or choose Balanced to link to the
corresponding balanced connector. A balanced input is taken from RJ48
connector.
Pin assignment of E1 Balanced Connectors
RJ-48 Pin Signal
1 RX, Ring
2 RX, Tip
3 Ground
4 TX, Ring
5 TX, Tip
6 Ground
7 No connect
8 No connect
Be sure to confirm the cable type. For E1 cable, there are the straight cable
and the cross cable.
Select the mode of input.
Terminate
Used when the instrument is used as a tester and the receiver is the only
device connected to the line. The input impedance is nominal.
Bridged
Used when the receiver is connected directly in parallel to a line carrying
live traffic. Please observe that this way of connecting may disturb the
monitored line - connection through a protected monitor point, as well as
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