Verilink DDS Lite (34-00295.C) Product Manual Instrukcja Użytkownika Pobierz pdf (Strona 18)

12 CHAPTER 3: TESTING

Data

Set

Loop

(Non-latching)

This loop (shown in Figure 3-2) is activated by the receipt of at

least four consecutive loop commands and remains looped as

long as each third pattern byte is the loop command. It returns to

normal operation after at least four pattern bytes that are not the

loop command. This is a unidirectional loop that retransmits the

DSU received data on the DSU transmit data. Receive data is

unaffected and circuit CF is Off.

Figure 3-2 Remote Channel Loop (V.54) and Data Set Loop

V.54

Channel

Loop

This loop is activated by the receipt of the V.54 loop command.

This loop is unidirectional and returns the DSU receive data to

the DSU transmit data, and subsequently the DDS transmit data.

Receive data is unaffected.

DTE

NET

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Verilink DDS Lite (34-00295.C) Product Manual Instrukcja Użytkownika Strona 18