Tainet DT-128 Series, Руководство пользователя

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CHAPTER 4 : GENERAL INFORMATION AND FEATURES
4.4 Synchronous VS. Asynchronous
The data formats of both connecting NTUs must be exactly the same in order to exchange
data with each other. Choosing various data formats in two NTUs still could connect each
other, but they won‘t transmit or receive data exactly.
There are synchronous and asynchronous data formats. The common personal computers and
terminals are asynchronous. Whereas, the host computers and their terminals are often
synchronous.
For most multiplexes and routers, the connecting NTUs should be synchronous. However, the
user should know the type of the data terminal equipment (DTE) to get proper operation.
4.5 Configuration
Profile Set-Up
The DT-128 has various operating modes. To save your energy, it provides 6 sets of factory
default settings. Users may choose the most similar factory default setting; by pressing key
properly in the front panel, make some modifications and the modified setting save to a user
profile automatically. From then on, once the NTU is turned on, it will use the user profile as
default.
Below is the profile setting procedure.
(1) With the main menu (MENU), press " ENTER " key to get " MENU SELECT " screen.
(2) Press "
←
" to move to " PROFILE " column, then press "ENTER" to enter “PROFILE”
menu.
(3) Press "
←
" to move to "LOAD" column, then press "ENTER" key " to various sets of
profile.
4.5.1 Factory Profile
#0 LT-SYNC-128K
LT mode, Sync, 128k
#1 NT-SYNC-128K NT mode, Sync, 128k
#2 LT-SYNC-64K LT mode, Sync, 64k
#3 NT-SYNC-64K NT mode, Sync, 64k
#4 LT-ASYNC-38.4K LT mode, Async, 38.4k
#5 NT-ASYNC-38.4K NT mode, Async, 38.4k
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