MFJ-1278B MULTI-MODE

OPERATIONAL COMMANDS

SLOTS nnn

Mode: Packet

Default: 3

Parameter:

nnn0 - 127, specified the number of sides on the slot time dice.

The SLOTS parameter determines how many sides are on the slot time dice. SLOTS represents an n+1 sided dice the TNC "throws" before transmitting. The SLOTS command allows any number of slots from 1 thru 127 to be defined.

SLOTS (n)

REMARKS

1

Disables Slotting

2

 

4

This should be the default setting

8

Use only if the channel is VERY busy.

16

VERY VERY VERY busy !

32

You get the idea.

64

 

128

Might as well print it out & send it in the mail.

The value used on a particular channel should be agreed on by the channel users. Access to the channel will be equitably distributed among all users if everybody is using the same value for the SLots and DEAdtime parameters.

The idea is to pick a value large enough that the probability of two queued up stations picking the same value is relatively small. On the other hand, the value chosen should be small enough that most of the time, ONE of the queued up stations will have a significant probability of picking the first available slot. In this way, the channel is reliably arbitrated and at the same time the overhead required for the arbitration is minimized so that overall throughput on the channel is maintained. The actual value used will depend on the average number of queued up stations there are on the channel during busy periods.

SOLF ON/OFF

Mode: AMTOR

Default: ON

SOLF determines whether only LINEFEED characters from the AMTOR receiver are sensed as newline characters. If SOLF is OFF then carriage return and linefeed characters are passed directly through to the terminal, otherwise every received linefeed character will generate a <CR>,<LF> newline sequence.

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Epson MFJ-1278B manual Slots nnn Mode Packet Default, Solf ON/OFF