Verilink AS420 (34-00294) Product Manual Manual de usuario descargar pdf (Pagina 23)

Testing 15

Network

Setting the front panel rocker switch to NET activates a payload loopback

where every frame of the E1 datastream received is looped back to the

network. The equipment receives unframed 1’s.

Deactivate the loopback one of three ways: setting the rocker switch to the

middle position, allowing the 72-hour timer to expire, or receiving a

loopdown code from the network.

Figure 3.2

Payload Loopback

Equipment

Setting the front panel rocker switch to EQ activates an equipment loopback

where every frame received of the E1 datastream is looped back to the device.

The network receives all 1’s.

Deactivate the loopback one of three ways: setting the rocker switch to the

middle position, allowing the 72-hour timer to expire, or receiving a

loopdown code from the network.

Figure 3.3

Equipment Loopback

Equipment

Network

AS420

AIS

Equipment

AS420 Network

AIS

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Verilink AS420 (34-00294) Product Manual Manual de usuario Pagina 23