RAD Data comm Vmux-2100 Bedienungsanleitung PDF herunterladen (Seite 83)

Vmux-2100 Installation and Operation Manual Chapter 6 Diagnostics

Loopback Tests 6-3

6.2 Loopback Tests

Vmux-2100 supports activation of the local and remote loopbacks. The purpose of

these tests is to determine the source of a break in the data flow. The loopbacks

are activated per E1/T1 port.

Local Loopback

Vmux-2100 can activate a local loopback to test the connection between the

E1/T1 voice port and the local side PBX. In this mode, data coming from the PBX

side is looped back (to the testing equipment). See Figure 6-4.

Main Module

Main Link

Testi ng

Equipment

Operating in

Internal Clock

E1/T1

Voice Module

Framer

Figure 6-4. Local Loopback



To activate an local loopback:

1. Configure the testing equipment to internal clock.

2. From the Diagnostics menu, choose Local Loop Test.

The Local Loop Test menu appears (see Figure 6-5).

Local Loop Test

1. Slot > (Slot 1)

2. Port > (Port 1)

3. Activate

@ - Db Update; # - Db Undo

ESC-prev.menu; !-main menu; &-exit

Figure 6-5. Local Loop Test Menu

3. From the Local Loop Test menu, perform the following steps to complete the

local loopback activation:

 Select a desired slot.

 Select a desired port.

 Activate the local loopback by choosing Activate, and then selecting Yes

from the displayed menu.

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RAD Data comm Vmux-2100 Bedienungsanleitung Seite 83