61200290L1-1G 6-1
SECTION 6, LOOPBACKS
Section 6
Loopbacks
1. INTRODUCTION
The Loopback menu initiates loopback tests from the MX2800. Figure 6-1 shows the main Loopback
menu. To initiate a loopback, select
Loopback Menu.
To locate descriptions of the types of loopback tests that are available, find T1/E1, DS2, or DS3 Loopback
descriptions. Next, select by number the type of loopback for a description.
Descriptions and testing diagrams of the loopback tests are provided in the following subsections:
• T1/E1 Loopbacks on page 6-2
• DS3 Loopbacks on page 6-6
• DS2 Loopbacks on page 6-9
Figure 6-1. Loopback Menu
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