ADTRAN Express 5210, Руководство пользователя

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Chapter 7. DTE Port Configuration
61200208L1-1 Express 5210 User Manual 7-13
Transmit Idle Code (TX IDLE CODE)
Enable the Express 5210 to transmit F
LAGS
or all O
NES
( F
LAGS
are
recommended).
Hardware Flow Control
When set to
O
N
, the Express 5210 varies the transmit clock rate to
temporarily limit the transmit data rate from the DTE device to the
Express 5210.
Protocol Options (PROTOCOL OPTS)
Data Format (FORMAT)
Set the D
ATA
F
ORMAT
to match the attached controller or FEP line
coding. The choices are non-return-to zero ( NRZ ) and non-return-
to-zero inverted ( NRZI ).
When using NRZI format, the Express 5210 does not derive timing
from the receive data input.
Address Table (ADDR TABLE)
Far End Port Number (FAR END PORT)
Enter the port number (DTE 1 or DTE 2) connecting the remote
ADTRAN frame relay product to the remote HDLC device.
Outgoing DLCI (OUT DLCI)
Enter the DLCI address that indicates the virtual circuit used to
connect with the remote ADTRAN frame relay product.
Transparent Async Protocol (TRANS ASYNC)
The T
RANSPARENT
A
SYNC
protocol frames up async characters to
transport across a frame relay network. This protocol is used when
the device connected to the Express 5210 is an async device such as
a terminal or PC. See Figure 7-7 for the
T
RANSPARENT
A
SYNC
menu
tree.
The Express 5210 buffers async characters from the DTE device
until two idle characters or 100 characters are received. A frame
relay synchronous frame is constructed containing the data content
of each character. Frame relay frames received on the network
containing transparent async data are transmitted to the attached