ZETRON 025-9581M, Installation And Maintenance Manual

Page: 65 / 196

65
Serial Port Programming
this parameter is selected, the menu shown in Figure 14 is displayed showing the
communication modes that can be selected for the Model 6203.
For detailed explanations of the various Communication Modes, see “Communications
Mode” Menu on page 66.
Keyup Delay
This parameter is found in the Station Configuration Menu. In conventional radio modes it
sets the delay time, in seconds, from PTT activation until the Model 6203 starts to transmit
data. In the trunking radio modes it sets the delay time from channel grant to the beginning
of data transmission. This parameter accepts any value between 0.00 and 59.99 seconds.
When the VoIP Gateway is being used this parameter is usually set to
0 . In all other
communication modes it should be as small as possible to maximize system performance.
Retry Period
This parameter is found in the Station Configuration Menu. It sets the minimum time, in
seconds, that the Model 6203 will wait for a reply from the FSA Server before doing a
retry. The Model 6203 also adds a randomly generated time value to this parameter to
calculate the total wait time.
This parameter accepts any value between 0.00 and 59.99 seconds. A typical value would
be 10.00 seconds.
Max Timeout
This parameter is found in the Station Configuration Menu. It sets the maximum time the
Model 6203 will wait for a clear channel (No VOX or COR signal) before it goes ahead
and transmits anyway. If the value of this parameter is
0 , the Model 6203 always wait until
a channel is clear before transmitting. This parameter accepts any value between 0.00 and
59.99 seconds. Typically it is set to 0 (the default, always wait for a clear channel).
Voice Debounce
This parameter is found in the Station Configuration Menu. It sets the period of time that
the Model 6203 is prevented from transmitting after it stops receiving non-FFSK data. It is
used to prevent the pauses in normal speech (VOX communication mode) from giving a
false channel clear indication. It also prevents the muting of the PA prematurely during
station announcements. This parameter accepts any value between 0.00 and 59.99
seconds. Typically it is set for about 1.50 seconds.
FFSK Mute Debounce
This parameter is found in the Station Configuration Menu. It sets the period of time after
the Model 6203 stops receiving or sending FFSK data that it continues to mute the PA and
handset from FFSK packet noise (“packet racket”). If packet noise can be heard while the
PAs are on, increasing the value of this parameter should help to minimize it. This