Operations Manual

OPERATIONS 4-34
O&M of the MCC-545B PACKET DATA RADIO
12/2000
Group routing is provided in the 520B/C Master to facilitate the construction of the source
routing tables. A list of source IDs can by defined by a group name, then the group name can be
used in the LINK command, for example:
GROUP,G1,1200,1201,1203
GROUP,G2,1300,1301,1302
LINK,1000,G1
LINK,1001,G2
LINK,2,G1,G2
The equivalent functionality is provided in a 545B Master using the SOURCE RELAY
command, for example:
SOURCE RELAY,2
4.8.5. Network Parameters
Network parameters control how the unit responds in the network. The MCC-550B/C can only
be used as a data acquisition Remote. Therefore, their only network related command is to
assign the ID code for the Remote and its Master as discussed above in paragraph 4.8.2.1.
The MCC-545B and MCC-520B/C have the following network commands listed below. Each of
them are discussed in detail following the list.
SNP,TTL Message time-to-live
SNP,TTR Message time-to-retry
SNP,TEXTL Message packet size
SNP,NUP Number of receptions for neighbor up
SNP,NDOWN Number of minutes for neighbor down
SNP,RDOWN Number of minutes for Remote down
SNP,OTL Congestion control outstanding text limit
SNP,CONNP Priority for connectivity messages
SNP,ETEAP Priority for end-to-end-ack messages
SNP,FLOODP Priority level to initiate “flood-routing”
SNP,DATAP Priority for data reports
SNP,HTO History timeout in minutes for duplicate filtering
SNP,INF Infinity hop count
SNP,MBHOP Meteor burst link hop weight
SNP,RELAY Enable/disable Master’s ability to relay messages for other
destinations
SNP,TTL Message time-to-live
SNP,TTR Message time-to-retry
SNP,TEXTL Message packet size