Specifications

Table Of Contents
OPERATIONS
Page 47 MRC-565 Packet Data Radio Operations & Maintenance
MODE
DESCRIPTION
Current
WU TIME
LPM,OFF
LPM off with Ethernet on
130ma
NA
LPM,OFF
LPM off with Ethernet off
110ma
NA
LPM,SP
Rx on, CF halted, power on
75 ma
3 MSEC
LPM,ALARM
Rx off, CF halted, power on
50 ma
300 MSEC
LPM,PWR
Rx off, CF halted, power off
2 ma
3 SECONDS
5.2.5 Selecting Network Parameters
MRC recommends using the given default network parameters (values that are set on power-up
or after reset). If you choose to change these parameters, first review the discussion in this
Section and in Section 4.8.5, then use the following commands to change to the desired settings:
SNP{,pname,value}
where "pname" is the network parameter and "value" is a limit dependent on "pname". The
"pname" parameters are as follows:
TTL Time-to-live in minutes (default is 120 minutes); this is the time limit for a message to
reach its destination before it is deleted from the queue.
The time-to-live parameter input is truncated to a 10-minute boundary. If you enter 60 through
69, the TTL for the next message will be 60 minutes. A resultant value of 0 (parameter range 0 –
9) means the message will never time out.
TTR Time-to-retransmit in minutes (default is 30 minutes); i.e., the message is retransmitted if
it has not reached its destination within this time frame.
NUP – Neighbor-up threshold (default is 2 acquisitions); the number of times a Station must hear
from another Station within a one minute time interval before it becomes a neighbor.
NDOWN Neighbor-down threshold in minutes (default is 120 minutes); if there is no
communication with a neighboring Station within the set time, the route to that neighbor is
ignored. Setting NDOWN to 0 maintains the routing to the neighbor indefinitely.
RDOWN Remote-down threshold in minutes (default is 2 minutes); if there is no
communication with a Remote Station within the set time, the Remote is declared down and is
removed from the Remote table. Setting RDOWN to 0 keeps a Remote defined indefinitely.
OTL Outstanding text limit (default is 20 texts); the number of messages a Station is allowed
to send to another Station without an end-to-end acknowledgment.