326-328 Flashcards
4 main responsibilities of Tributary Station acting as a part time terminal?
OPEN-Remaining open each day until traffic to the node suggests other wise
NAME+NUMBER-Provide the node the name and telephone number of who will be available to open the tributary or make the decision to hold traffic at the node
RECEIPTS-Establishing procedures for receipt of high precedence traffic
OPEN/CLOSE-Opening and closing procedures and transmitting opening and closing notices
What are the hourly schedules of a Node?
24 hours a day
What are the procedures when no alternate station is specified or available to receive traffic?
open for operation when traffic is
received that meets time criteria specified by the national communications command
Opening Procedures/Notice examples
The tributary will be made ready to pass traffic at the scheduled time
Tributary equipment will be checked
Circuit will be activated and tested
Equipment will be started at the direction of the node
Verify the CSN of the last good message received against what?
The number
of the returning closing notice
If the CSN of the closing notice is in
sequence with the last good message received what will happen?
the terminal will close
If a disparity exists regarding the CSN how will the terminal respond?
immediately take service action in
accordance with paragraph 433 and then close
Fifteen minutes before closing terminal stations not employing CSNs
will send what?
A closing notice of Priority precedence to the node service
position without waiting for a reply
The node is programmed to automatically generate a format line 1 pilot for all message formats in what 2 instances?
- A suspected duplicate transmission is generated
- A collectively routed message is alternatively routed to another station
The appropriate content indicator code/communication action identifier from
Annex B will be inserted, as required, in which positions?
5 through 8 of the line1 pilot
The routing indicator of the node generating the pilot is inserted between what?
Filing
time and security redundancy warning sentinel of the line 1 pilot
