User Manual

22 MHX-2400 Operating Manual: Chapter 3 Configuration Options
S Register 113 - Packet Retransmissions
This register applies to both Master and Repeater operation. It does not
apply to Slave operation. The Master will retransmit each data packet
exactly the number of times defined by the Packet Retransmissions
parameter. The Master retransmits once at the beginning of each hopping
interval until the limit is reached. This parameter is not necessary in Slave
units since all Slaves receive acknowledgement from the Master. As
discussed previously, the Repeater effectively behaves as both a Master and
a Slave. When the Repeater is tuned to its Secondary Hopping Pattern
(acting as a Master), the Packet Retransmissions Parameter comes into play.
The Repeater will re-send packets of data on to Slaves or other Repeaters
exactly the number of times defined by the Packet Retransmissions
parameter.
Recipients of the packet will discard any duplicates The valid settings for
this parameter are 0 to 255 retransmissions. The default is 2.
S Register 213 - Packet Retry Limit
Packet Retry Limit is analogous to Packet Retransmissions, but specifically
applies to Slaves and Repeaters. This parameter is not used by the Master.
Because the Slave has the advantage of receiving acknowledgements from
the Master, it is not necessary to blindly retransmit each packet. If the Slave
does not get an acknowledgement on the next hop, it will retransmit its
packet. This will continue until the Packet Retry Limit is reached or an
acknowledgement is received. If the limit is reached, the modem will give
up and discard the data. Valid settings are 0 to 255 retries. The default
value is 2.
The Repeater makes use of this parameter when it is tuned to its Primary
Hopping Pattern and is acting like a Slave.