Motorola MOSCAD 68P02958C00-B User Manual page 88

Toolbox version 5.50
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TX queue size <2^3-2^9>
This is the maximum number of MDLC frames that can be placed in the transmission queue
before a transmission process starts.
Number of ACK buffers <5-50>
The reception process of the Data Link layer prepares an ACK for each received data frame,
and is capable of issuing, in a single ACK message, up to 57 ACKs for data frames that arrived
in uninterrupted sequence. This parameter determines the number of ACK buffers in which
ACKs are prepared and moved to transmission before the "Cannot get ACK buffers" message
is issued to the Error Logger. This message means that the acknowledging side is unable to
move to ACK transmission because of heavy reception traffic, or because it cannot access a
channel for transmission.
Number of TX retries <0-9>
The number of times the Data Link layer retransmits a data frame for which ACK was not
received.
Number of TX retries upon BUSY ACK <0-9>
The number of times the Data Link layer retransmits a data frame for which BUSY ACK was
received (BUSY ACK is issued when all Data Link layer boxes of the switching node on are
full).
Interval between TX retries upon BUSY ACK <10-100> *100mSec.....
The interval of time that should elapse before a data frame for which BUSY ACK was
received, is retransmitted.
Number of TX broadcast (Group call) retries <0-9>
The number of retries for broadcast frames. Since broadcast frames are not acknowledged,
specify a value greater than 0 to increase the chances of the frames reaching their destination.
A broadcast that activates a momentary operation (not latch!) is likely to reactivate the
operation if the number of TX broadcasts is greater than 0.
Interval between broadcast (Group call) retries <10-100>*100mSec
The period of time that should elapse between retries of broadcast frames (if the previous
parameter is not 0).
Force 'Local response'
It is possible to conduct a session based on Site ID/Link ID using Local if the port is of
Computer/Rslink type. Normally the port is defined for Local Response if the medium is not
"multidrop". In any case, "local response" can be forced on a port if it is not "multidrop". The
default value is based on the port type. It is recommended to leave the default as is.
Clock synchronization delay <0-250> mSec
The delay (applied to the channel) between the end of a transmission and the beginning of
reception, for clock synchronization purposes. The default depends on the selected medium.
However, the user can change it.
5-31
Site Configuration
[2^6]:
[40]:
[2]:
[2]:
[40]:
[0]:
[40]:
[Force]:
[100]:

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