Download High-Density DS3/E3 Expansion Module

OnSite Series Admin Reference Guide
5 • DS3/E3 Interface
DS3 and E3 Provisioning
The following section provides the procedures for enabling and disabling DS3 and E3 ports. The section concludes with the procedures for monitoring alarms and performance data at the DS3 and E3 levels and setting
up the loopback test function for DS3 and E3 signals.
Enabling a Port for Service
To configure a DS3/E3 port for service, see Figure 92 and Figure 93 on page 172 and follow these steps:
1. Select the CHASSIS folder from the navigation menu.
2. From the expanded CHASSIS folder, select Ports.
3. On the Ports page, select the DS3 or E3 port being configured and click on Properties.
Note
The system displays all DS3/E3 ports in slots 2 and 3 if the system is
equipped with DS3/E3 expansion modules in those slots.
Note
The system uses the following naming convention for DS3/E3 interfaces: T3:slot/port. For instance, T3:2/3 refers to the third DS3/E3
port in slot 2.
4. In the Port Properties window (see Figure 93), set Admin Status to Enabled.
You can use the port selector filters at the top of the Ports page to narrow the selection of ports according to
port type and location. To display, for instance, only the DS3/E3 ports in slot 3, use the scroll-down buttons to
select Show DS3/E3 ports and Slot 3. If you click on Enable All Ports, the system sets the Admin Status to
Enabled for only the ports that are on display.
5. Set the Line Rate to DS3 (default) or E3.
For DS3 ports, the line coding is set to B3ZS. For E3 ports, the line coding is set to HDB3. The system displays the correct line coding for the port after you click on Apply in Step 8.
6. Select the Line Framing for the DS3/E3 port.
Use the line framing setting if you wish to enable non-intrusive monitoring of DS3/E3 path-level defects and
the collection of performance-monitoring data in both directions of transmission, that is, from the physical
DS3/E3 port into the VC-3 (receive direction) and from the VC-3 into the physical port (transmit direction).
Make sure that the line framing setting corresponds to the actual frame structure of the DS3/E3 signal that is
being monitored. For DS3 signals using C-bit parity framing, set the Line Framing to C-bit Parity to start the
the collection of DS3 path PM data using both the P-bits and the CP-bits. For DS3 signals using M23 framing, set the Line Framing to M23; otherwise, setting the Line Framing to C-bit Parity results in the incorrect
collection of PM data using the CP-bits.
Note
The system starts the collection of DS3/E3 path-monitoring data
when the port is enabled and the framer is set to the correct signal
frame structure.
7. Use the Line Length (LBO meters) scroll-down button to select the line-build out (LBO) settings for the
DS3 port.
DS3 and E3 Provisioning
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