Mf(R1) Frequencies - AMERITECH AM8a Instruction Manual

AM8a Instruction Manual
4.9.4 MF(R1) Frequencies: There are 15 frequency combinations that represent the possible
MF (Multi-Frequency) tones that are used between Central Offices and some PBXs.
For the AM8a to analyze digits as MF, a KP digit must immediately precede the first
dialed digit.
MF(R1) digits will not be seen if DIALTONE is used as a Start Signal.
NOTE:
The analyzing of digits as MF will cease with the reception of an ST, ST3P, STP, or
ST2P digit. Refer to the table on the next page.
NOTE: The KP digit ON-time is twice the programmed value.
Example: MF digit 5 is made up of two frequencies: Low Band 900 Hz and High
Band 1300 Hz.
DIGIT
1
2
3
4
5
6
7
8
9
0
* (KP)
# (ST)
A (ST3P)
B (STP)
C (ST2P)
0037-S04.L_32
(18-0037)
MF FREQUENCIES
LO BAND
700
700
900
700
900
1100
700
900
1100
1300
1100
1500
700
900
1300
4-7
Analysis Parameters
HIGH BAND
900
1100
1100
1300
1300
1300
1500
1500
1500
1500
1700
1700
1700
1700
1700
February 10, 2000