User's Manual

Definitions 2-5
-
Line=IT+OO+IOT+IOO
where:
Line = Line traffic in CCS
IT = Incoming Terminating traffic in CCS.
00 = Originating Outgoing traffic in CCS
IOT = Irma-Office Terminating traffic in CCS
100
= Inn-a-Office Originating traffic in CCS
- R=(IOT+IOO)/Line
where:
R = Irma-Office Ratio
- Loop=Line+IT+OO
where:
Loop
= loop traffic in CCS
=Line+Line-RxLine
= Line x (2-R)
-
Total line capacity = Total loop capacity / (2-R)
-
Total trunk capacity = Total line capacity x ( 1-R)
= Total loop capacity x (1-R) / (2-R)
-
Total I/O capacity = Total loop capacity x R / (2-R)
- Network = Total CCS handled by the SL-1 switching network or:
= Traffic received from stations + trunks, attendants, Digitone
receivers, conference circuits and special features.
- InterGroup = Traffic flow between two network groups in SL-1s having
more than one network group.
System engineering 553-3001-l 51
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