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bit errors are detected (via BCH calculations, parity calculations, check character calculations, or
value validation) in the vector word the e bit will be set and the message words will not be sent.
1. Numeric Vector Packet
Table 12-21 Numeric Vector Packet Bit Assignments
Bit 7
Bit 6
Byte 3
0
WN
Byte 2
e
p
Byte 1
x
x
Byte 0
n
b
0
V: Vector type identifier.
V
V
V
Name
2
1
0
0 1 1 Standard NumericVector
1 0 0 Special Format Numeric Vector Formatting of the received characters is predetermined
1 1 1 Numbered Numeric Vector
WN: Word number of vector (2 - 87 decimal). Describes the location of the vector word in the
frame.
e: Set if more than 2 bit errors are detected in the word, if the check character calculation fails
after error correction has been performed, or if the vector value is determined to be invalid.
p: Phase on which the vector was found (0=a, 1=b, 2=c, 3=d)
K: Beginning check bits of the message.
n: Number of message words in the message including the second vector word for long addresses
(000 = 1 word message, 001 = 2 word message, etc.). For long addresses, the first message word is
located in the word location that immediately follows the associated vector.
b: Word number of message start in the message field (3-87 decimal). For long addresses, the
word number indicates the location of the second message word.
x: Unused bits. The value of these bits is not guaranteed.
362
Bit 5
WN
6
5
p
1
0
K
3
b
6
5
Bit 4
Bit 3
WN
WN
4
3
x
x
K
K
2
1
b
b
4
3
Description
No special formatting of characters is specified
by special rules in the host.
The received information has been numbered by the
service provider to indicate all messages have been
properly received
Bit 2
Bit 1
WN
WN
2
1
V
V
2
1
K
n
0
2
b
b
2
1
Bit 0
WN
0
V
0
n
1
b
0
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