Verilink IMUX (880-503137-001) Product Manual Bedienungsanleitung PDF herunterladen (Seite 37)

Performance Monitoring

Verilink IMUX User Manual 4-5

The Loopback A and Loopback B signals are DTE signal lines used

to request loopback operation as described in TR30.2/SP-2976.

NOTE:

The labelling is deceptive and does not immediately activate

loopbacks. Combinations of these lines determine loopback.

The following matrix (Table 4-4) identifies the loopback

behavior as defined in TR30.2 and the loopbacks supported

by the IMUX.

Table 4-4 Loopback Signals

Signal Line Combinations TR30.2 Control Behavior IMUX Behavior

Loopback A - off

Loopback B - off

Loopbacks off Loops off

Loopback A - on

Loopback B - off

Remote Line Loopback Loops off

(not supported)

Loopback A - off

Loopback B - on

Local Line Loopback Loops off

(not supported)

Loopback A - on

Loopback B - on

Local Digital Loopback Local Digital Loopback

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 47 48

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Verilink IMUX (880-503137-001) Product Manual Bedienungsanleitung Seite 37