Difference between revisions of "Logical Channel Number"
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| − | LCN stands for "Logical Channel Number" and is primarly used to define frequencies in use on | + | LCN stands for "Logical Channel Number" and is primarly used to define frequencies in use on M/A-COM [[EDACS]] systems and [[LTR]] systems. |
| − | All EDACS systems have 25 real LCN channel frequencies, and then an | + | All [[EDACS]] systems have 25 real LCN channel frequencies, and then an |
| − | additional six 'status' channels reserved for special messaging to radios and infrastructure. They are not | + | additional six 'status' channels reserved for special messaging to radios and infrastructure. They are not actual frequencies, but they indicate a certain status message to the calling radio. The following in [[Etrunk]] format lists these special LCNs: |
| − | actual frequencies, but they indicate a certain status message to the | ||
| − | calling radio. The following in [[Etrunk]] format lists these special LCNs: | ||
s DOWNLINK,1a,ffff,0 | s DOWNLINK,1a,ffff,0 | ||
| Line 13: | Line 11: | ||
s DENIEDid,1f,ffff,0 | s DENIEDid,1f,ffff,0 | ||
| − | CONVERTc is used to tell a radio who PTTs while there talkgroup is active, and sends them to listen to the | + | CONVERTc is used to tell a radio who PTTs while there talkgroup is active, and sends them to listen to the talkgroup, giving them an error beep as well. QUEUEDid is where a calling radio will be placed if they are waiting for a next available voice channel or phone patch, etc. SYS-BUSY, means the system is busy, no channels available, and somebody is in the Queue. DENIEDid is if that radio ID is not allowed on the system for some reason. |
| − | talkgroup, giving them an error beep as well. QUEUEDid is where a calling | ||
| − | radio will be placed if they are waiting for a next available voice channel | ||
| − | or phone patch, etc. SYS-BUSY, means the system is busy, no channels | ||
| − | available, and somebody is in the Queue. DENIEDid is if that radio ID is | ||
| − | not allowed on the system for some reason. | ||
Revision as of 14:45, 13 February 2005
LCN stands for "Logical Channel Number" and is primarly used to define frequencies in use on M/A-COM EDACS systems and LTR systems.
All EDACS systems have 25 real LCN channel frequencies, and then an additional six 'status' channels reserved for special messaging to radios and infrastructure. They are not actual frequencies, but they indicate a certain status message to the calling radio. The following in Etrunk format lists these special LCNs:
s DOWNLINK,1a,ffff,0 s RESERVED,1b,ffff,0 s CONVERTc,1c,ffff,0 s QUEUEDid,1d,ffff,0 s SYS-BUSY,1e,ffff,0 s DENIEDid,1f,ffff,0
CONVERTc is used to tell a radio who PTTs while there talkgroup is active, and sends them to listen to the talkgroup, giving them an error beep as well. QUEUEDid is where a calling radio will be placed if they are waiting for a next available voice channel or phone patch, etc. SYS-BUSY, means the system is busy, no channels available, and somebody is in the Queue. DENIEDid is if that radio ID is not allowed on the system for some reason.