System & Station
Ringing Assignments
PORTS
Group No
LED
039
20
038
19
037
18
036
17
035
16
034
15
033
14
032
13
031
12
030
11
029
10
028
09
027
08
026
07
025
06
024
05
023
04
022
03
021
02
020
01
3-140
Program 72 Day 1 - (12 Second Delay) - Incoming DDI Exchange Line Station
022
023
024
025
026
027
Strata DK40 Programming Manual Spring 1999