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Small System Loops and Cards

From PBX Wiki

Small Systems use "Loops" to allocate timeslots to certain card slots. There is a mapping of loop number to card slot for these systems, as it is different than in Large Systems

Contents

Newer Small Systems

SUPL Card Slot
0 1-4
4 5-8
8 9-12
12 13-16
16 17-20
32 21-24
36 25-28
40 29-32
44 33-36
48 37-40
64 41-44
68 45-48
72 49-50
P096 61-64
P100 65-68
P104 69-72
P108 73-76
P112 77-80

Older Small Systems

SUPL Card Slot
0 1-4
4 5-8
8 9-12
12 13-16
16 17-20
32 21-24
36 25-28
40 29-30(32)
?44 33-36
48 ?37-40
P064 41-44
P068 45-48
P072 49-52
P076 52-56
P080 57-60

T1 Spans

Loop Card Slot
20 1
21 2
22 3
23 4
24 5
25 6
26 7
27 8
28 9
29 10

Formulas

Card -> Loop

32 * ((card-1) div 20) + ((card - 1) mod 20)

Loop -> Entry

Loop - (Loop mod 4)

See Also


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