changed. Burst position generates a single cycle pream-
ble tone followed by the 5
or
6 tone sequence after
which the
output
terminates.
SIGNALING
SEQUENCE
MODE
SEL) 3
ENTER
0
FOR
MENU
DIGIT
FREQUENCY
HZ
DIGIT
FREQUENCY
HZ
SELECT
V
ENCODE
1)
ZVEI
3) CCIR (70MS)
5)
EEA
SEQ SEL) 1
2)
MODIFIED
ZVEI
4) CCIR
(lOOMS)
'--../
1124
1275
'----
....
1197
CCiR
HZ
0.000 SEC
1124
1197
EEA
HZ
1275
1124
1197
1275
970
1060
1160
1060
1160
1270
2
TONE
ZVEI/B.O.S. MOD. ZVEI CCIR
NUMBER HZ
HZ
HZ
ACCESS CODE) 12345
SCOPE
TRIG
DL
Y)
FIGURE
3-27.
SELECT
V
ENCODE
DISPLAY
•
SELECT
V
ENCODE
Figure 3-27 shows an encode display on page 3. Select
one
of
the five sequences to display the five-digit access
code for Select
V.
The processor responds to the entry
of
a new access code to execute the next complete se-
quence. Table 3-8 lists tone frequencies
and
time dura-
tion in milliseconds for each digit
of
the five sequences.
A sequence consists
of
a single series
of
five tones in re-
sponse to the five-digit access code. Each tone lasts for
the specified duration. Select single
or
repetitive cycles,
using the burst
or
continuous switch position.
0 600 6
1446
741
7
1587
2 882
8
1728
3
1023
9
1869
4 1164 R
459
5
1305
X 2010
TABLE
3-7.
CAP
CODES
SIGNALING
SEQUENCE
MODE
SEL) 2
0)
MENU
1)
START
2)
END
5/6
TONE
DECODE
CODE: 2 - 4 5 3 1 1 X
FREQ: 0082
1305
0741
1446
Hz
1164
1023
0429
TIME:
.035 .035
.035 .035
SEC .035 .035
.035
- NO
INPUT
SIGNAL -
FIGURE
3-26.
5/6
TONE
DECODE
DISPLAY
4 1400 1270
1358
1358 1358
•
5/6
TONE
DECODE
Figure 3-26 shows the decode display on page 2.
If
the
reset
is
activated by entering a "1" for "START", all
decode information
is
replaced by dashes and the
decoder sequence resumes.
If
the decode sequence
: detects the presence
of
the sixth or X tone, the X ap-
pears at the end
of
the code. Otherwise,
that
space re-
mains blank.
If
the sequence detects an invalid fre-
quency, a dash replaces that digit. The display shows the
detected frequency for each digit
of
the cap code.
The
format staggers a line with the appropriate frequency
directly below the code digit. Frequencies readout to a
maximum value
of
10,000 Hz with I
Hz
resolution.
If
the decode sequence cannot detect
an
input signal, a
warning message displays. The display retains the last
decoded sequence information, regardless
of
signal in-
put
condition, until the
operator
initiates another
decode
or
changes the display.
6
9
o
R*
TONE
LENGTH
illS
1530
1670
1830
2000
2200
2400
2600
70
1400
1530
1670
1830
2000
2200
2400
70
1446
1540
1640
1747
1860
1981
2110
100
1446
1540
1640
J747
1860
1981
2110
40
1446
1540
1640
1747
1860
1981
2110
70
*R
is
the repeat tone which
is
inserted wherever there
is
a repeat
of
the same tone in adjacent time slots
(Example: Encode 13334 as 13R34).
TABLE 3-8.
SELECT
V SEQUENCE
SPECIFICATION
'-----'
3-14
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