Verilink FrameStart FSM (34-00299.E) Product Manual User Manual

Page 134

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5-16

F r a m e S t a r t F S M

Tx Clock

Used to select the clock that the unit uses to sample the data transmitted from
the DTE. When set to “Internal,” the data is sampled directly with the
transmit data clock that is also supplied to the DTE as Transmit Clock.

Values: Internal, External
Default: Internal

Inv Clock

For use in DTE Packet mode to change the clock edge of the transmitted data.

Values: Enable, Disable
Default: Disable

Rate

If the port is running in Packet mode, the Rate must be configured to the
desired port speed. In TDM mode, the port speed rate will be set by
configuring the next four parameters (Start Channel, Number of Channels,
Bundling, and Channel Rate). The menu displays the calculated rate in
kilobits per second.

Values: Nx56K, Nx64K, where N = 1

32

Default: 1536 kbps

Channel Rate

The unit can operate at any data rate that is a multiple of 56 or 64 kbps. If

Ν

x64K” is selected, the ones density requirements of the T1 network line

must be ensured. If “

Ν

x56K” is selected, ones density for the selected DS0

channel is maintained. The menu displays the calculated rate in kilobits per
second.

Values: Nx56K, Nx64K
Default: Nx64K

Bundling

Selects whether the DTE channel assignment is made as a “Contiguous”
group or as “Alternate” channels. Selecting “Alternate” ensures ones density.
Because the unit allows individual channels to be configured for a service, a
value of “Arbitrary” will be returned for this parameter if the current channel
allocation is not contiguous or Alternate. The “Arbitrary” value can only be
supplied by the unit

it cannot be set by the user.

Values: Contiguous, Alternate
Default: Contiguous

NOTICE:

Because the “Alternate” Bundling option works by stuffing even
channels with ones (1’s) and using odd channels for data, the available
bandwidth is actually half of that selected.

Start Channel

Selects the starting channel in the 24-channel DS1 bit stream. Starting with
the specified channel, the unit automatically assigns the channels that follow.

Values: 1 through 24
Default: 1

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