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Verilink 9000 Series (34-00271) Product Manual User Manual

Page 146

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124

C

HAPTER

7: B

ISYNC

2780/3780

AND

3270

After these fields have been filled, press F10. This redisplays the port using the
copied values.

Baud RATE

This is the rate of speed, in bits per second, at which the port will communicate.
The selections are 300, 1200, 2400, 4800, 7200, 9600, 12000, 14400, 16800,
19200, 24000, 28800, and 38400.

Bits per Character

The number of valid data bits in each byte is represented in this field. The
selections are 7 and 8.

Parity

Parity selections can be Odd, Even, or None. Setting the parity of a data byte is
done by marking the most significant bit (MSB) either on or off so that the total
number of on bits is either an odd or even number. Odd and even parity are used
when the bits per character are set to 7. When 8 bits per character are used, the
parity is set to None. Parity on a Bisync port is always None. The selections are O
(odd), E (even), and N (none).

Message Buffer

The message buffer represents the number of internally transferred bytes the port
accumulates before beginning to transmit the data to the attached device. If the
current port speed is less than or equal to the speed of the port transferring the
data, this parameter can be set to 100. If the current port speed is faster than that
of the transferring port, this parameter must be greater than the largest possible
message size. This acts as a fast-output option. When set to 100, the message is
sent to the terminal device while it is still being received from the host. When set
to a value greater than the actual message size, the entire message is received from
the host before being sent to the terminal device. If any terminal on this port is
linked to a port using a transport protocol such as X.25 or Frame Relay, set this
parameter to 4096. The selections are 10 to 4096.

Interface

This determines the interface type of the port. The only valid entry is S for Sync.
Any other entry is ignored. The selections are S (sync/RS-232) and V (V.35). This
is not used for the 9111.

Offline Timeout

The offline timeout indicates the maximum time, in seconds, the unit waits, with
no traffic from the host, before declaring the port offline. When the port is
declared offline, all stations connected to that host are logically disconnected. The
selections are 1 to 255, 30.

Termination

This field sets the port for DCE (data communication equipment) or DTE (data
terminal equipment). This is not used in the 9111.