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ISDN ANALYZER D1080 - messkom.de

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USER’S MANUAL REV. 5 <strong>ISDN</strong> <strong>ANALYZER</strong> <strong>D1080</strong><br />

4. OPERATING PRINCIPLE<br />

4.1. USE AS MONITOR<br />

Fig. 4-1 shows the functional block diagram of <strong>D1080</strong> when used<br />

as monitor and/or protocol analyzer over the D channel. The<br />

signal monitoring can be carried out both on “S0” and “E1”. It is<br />

also possible to extract the B data channel towards the V.11<br />

interface at 64 kb/s<br />

B.R.I.<br />

P.R.I.<br />

LINE<br />

INTERFACE<br />

* FOR PRIMARY ACCESS<br />

D ch. (NT-TE)<br />

MONITOR<br />

B ch. (NT-TE)<br />

MONITOR<br />

OFF<br />

B ch. (TE-NT)<br />

MONITOR<br />

D ch. (TE-NT)<br />

MONITOR<br />

Fig. 4-1<br />

vf ifc<br />

CHAPTER 4.OPERATING PRINCIPLE 31

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