RAD Data comm Vmux-2100 Voice Trunking Gateway operation manual Loopback Tests, Local Loopback

Vmux-2100Installation and Operation Manual Chapter 6 Diagnostics

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.

Testing

Equipment

Operating in

Internal Clock

E1/T1

Voice Module

Framer

Main Module

Main Link

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.

Loopback Tests 6-3