IRIG 106-99  CHAPTER 9 - TELEMETRY ATTRIBUTES TRANSFER STANDARD, Continued....
Start of Chapter 9
9.5.2 General Information (G)
9.5.3 Transmission Attributes (T)
9.5.4 Tape Source Attributes (R)
9.5.5 Multiplex/Modulation Attributes (M)
9.5.6.1 PCM Format Attributes (P)
9.5.6.2 PCM Measurement Description (D)
9.5.6.3 1553 Bus Data Attributes (B)
9.5.8 Data Conversion Attributes (C)
9.5.9 Airborne Hardware Attributes (H)
CHAPTER 9

TELEMETRY ATTRIBUTES TRANSFER STANDARD, Continued....

9.5.7 PAM Attributes (A)



9.5.7 PAM Attributes (A). This group provides the information necessary to define the channelization and measurand definition for a PAM waveform. As with the PCM signal, the tie to the calibration data is with the measurement name. Figure 9-9 summarizes the types of inputs required. Table 9-8 specifies the details required. The information which defines the measurand for each channel is required for the channels of interest.

PAM Attributes Group (A)
Figure 9-9.  PAM Attributes Group (A).



TABLE 9-8. PAM ATTRIBUTES GROUP (A)

R
O
W


PARAMETER

MAX
FIELD
SIZE

CODE
NAME


DEFINITION

1

DATA LINK NAME

32

A-x\DLN

IDENTIFY THE DATA LINK NAME.

2

INPUT CODE

2

A-x\A1

 DEFINE THE INPUT CODE:
   50% DUTY CYCLE – ‘RZ’
   100% DUTY CYCLE(NRZ) – ‘NR’.

3

POLARITY

1

A-x\A2

NORMAL- ‘N’
INVERTED- ‘I’.

4

SYNC PATTERN TYPE

3

A-x\A3

 SPECIFY THE SYNCHRONIZATION PATTERN
   IRIG 106 – ‘STD’
   OTHER – ‘OTH’.

5

SYNC PATTERN (OTHER)

5

A-x\A4

 DEFINE THE OTHER (NON-STANDARD) SYNCHRONIZATION PATTERN IN TERMS OF
   0 - ZERO SCALE
   H - HALF SCALE
   F - FULL SCALE
   X - DON'T CARE.

6

CHANNEL RATE

6

A-x\A5

SPECIFY THE CHANNEL RATE IN CHANNELS PER SECOND.

7

CHANNELS PER FRAME

3

A-x\A\N

SPECIFY THE NUMBER OF CHANNELS PER FRAME INCLUDING THE SYNC PATTERN AND CALIBRATION CHANNELS. MAXIMUM ALLOWED IS 128.

8

NUMBER OF MEASURANDS

4

A-x\A\MN\N

INDICATE THE NUMBER OF MEASURANDS ASSOCIATED WITH THIS DATA LINK (SOURCE).

REFERENCE CHANNELS

9

0% SCALE CHANNEL NUMBER

3

A-x\RC1

CHANNEL NUMBER OF 0% SCALE REFERENCE.
IF NOT USED ENTER ‘NON’ (NONE).

10

50% SCALE CHANNEL NUMBER

3

A-x\RC2

CHANNEL NUMBER OF 50% SCALE REFERENCE.
IF NOT USED ENTER ‘NON’ (NONE).

11

FULL SCALE CHANNEL NUMBER

3

A-x\RC3

CHANNEL NUMBER OF FULL SCALE REFERENCE.
IF NOT USED ENTER NONE ("NON").

SUBFRAME DEFINITION

12

NUMBER OF SUBFRAMES

1

A-x\SF\N

SPECIFY THE NUMBER OF SUBMULTIPLEXED CHANNELS IN THE FRAME.

13

SUBFRAME n LOCATION

3

A-x\SF1-n

CHANNEL NUMBER OF THE SUBFRAME (REPEAT THIS ENTRY AND THE FOLLOWING TWO ENTRIES FOR EACH SUBFRAME AS A SET).

14

SUBFRAME n SYNCHRONIZATION

3

A-x\SF2-n

 SPECIFY THE SYNCHRONIZATION PATTERN FOR THE SUBFRAME:
IRIG 106 – ‘STD’,    OTHER – ‘OTH’.

15

SUBFRAME n SYNCHRONIZATION PATTERN

5

A-x\SF3-n

 DEFINE THE OTHER (NONSTANDARD) SYNCHRONIZATION PATTERN IN TERMS OF
‘0’ - ZERO SCALE    ‘H’ - HALF SCALE
‘F’ - FULL SCALE    ‘X’ - DON'T CARE
‘OTH’ - OTHER.

CHANNEL ASSIGNMENT

16

MEASUREMENT NAME

32

A-x\MN1-n

GIVE THE MEASUREMENT NAME.

17

SUBCOM

1

A-x\MN2-n

IS THIS A SUBCOMMUTATED CHANNEL? ‘Y’ OR ‘N’.

18

SUPERCOM

1

A-x\MN3-n

IS THIS A SUPERCOMMUTATED CHANNEL? IF YES, ENTER THE NUMBER OF POSITIONS IT OCCUPIES - n. IF NO ENTER ‘N’. A SUPERCOMMUTATED SUBCOMMUTATED PARAMETER IS ALLOWABLE AND WILL HAVE ENTRIES IN THIS AND THE PREVIOUS RECORD.

LOCATION

19

CHANNEL NUMBER

3

A-x\LCW-n-s

NUMBER OF THE CHANNEL WHICH CONTAINS THIS MEASURAND. IF THIS IS A SUBCOMMUTATED CHANNEL, ENTER THE CHANNEL THAT CONTAINS THE SUBCOMMUTATED CHANNEL.

20

SUBFRAME CHANNEL NUMBER

3

A-x\LCN-n-s-r

CHANNEL NUMBER IN THE SUBFRAME IF APPROPRIATE.

COMMENTS

21

COMMENTS

3200

A-x\COM

PROVIDE ANY ADDITIONAL INFORMATION REQUIRED OR DESIRED.



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