Cabletron Systems SmartSwitch 6000 User Manual page 187

Generate Clock
Rcv Clock (TT) from DTE
On-Line System Memory Changes/Database Display
EBCDIC
Transparent Text Supported
Ack
Controller Type
Full Duplex
# of Beginning Sync Chars
Configuring BSC
specifies whether the port will generate the clock necessary to synchronize traffic over
the link. If the port is a physical DCE (determined by the port's I/O cable interface),
specify , since the physical DCE generates clock. If the port is DTE, specify
Y
allows the clock to be looped back from the DTE using the TT (Terminal Timing)
signal, which can be helpful on high-speed lines. Generally, if the local interface is
physical DCE and the line speed is above 256 Kbps, this parameter should be set to
(Make sure the remote DTE is configured to provide the terminal timing.)
determines which set of values will change, as described under "Database and System
Memory Values" on page 5-4.
stands for "Extended Binary Coded Decimal Interchange Code." Specifying
requires that all devices on a line use the same character set for successive session
polls. It is activated after a session is over; i.e., an EOT (End of Transmission) is suc-
cessfully transmitted down the line. On expiry, a
under certain special conditions. The timer is deactivated at
causes (if ) all characters transmitted, including control character sequences, to be
Y
treated as data. This is useful for transmitting binary data, machine language computer
programs, etc., without special coding.
Data-link control character sequences transmitted during transparent mode must be
preceded by character 1/0 (DLE) in order to be recognized as control characters.
specifies which methods of acknowledgement will be used:
= ETB:loc, ETX:end – local acknowledgement of transmission blocks,
A
end-to-end acknowledgement of text.
= ETB:end, ETX:end – end-to-end acknowledgement of transmission blocks
B
and text.
= ETB:loc, ETX:loc – local acknowledgement of transmission blocks and
C
text.
ETB = End of transmission block, ETX = End of text.
= Use this if you don't care or are not sure which type to select.
A
= 2780 = 3780
B C
specifies full-duplex transmission (both directions at once). Currently, this must be
configured as .
Y
specifies the number of synchronization characters that will be added to the beginning
of each frame.
= 3740 = 2770
D E
is transmitted, except
General Poll
.
Link Down
= 3770
F
.
N
.
Y
Y
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