XtendLan XL-GDB101E, Руководство пользователя

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XtendLan XL-GDB series User’s Guide
This menu is to select whether the E1 interface uses either the unframed, FAS+CRC or FAS.
When the Frame is configured as UNFRAME, the whole bandwidth (2.304Mbps) is used for
transmitting data without checking CRC.
5.4.1.3.2 Frame Insert Menu
The above menu is for framing; the user can select either insert or bypass framing word. Time slot
zero can be inserted or bypassed by the local unit. When in bypass mode, time slot zero is added
to the number of payload time slots to form the line rate used by the G.SHDSL system. For
example, when the user selects time slots 1,2 and 3 as the payload time slots, and user selects
bypass framing, time slot zero is added to the total payload rate count for a total count of four.
When user selects insert framing, time slot zero is not added to the total payload rate count for a
total count of three. When STU-R’s user interface is either DTE or Ethernet, framing will always be
inserted by the E1 interface.
5.4.1.3.3 Line Code Menu
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