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address words. Values 128 through 143 correspond to the 16 temporary addresses . Values 144
through 159 correspond to the 16 operator messaging addresses. For long addresses, the address
detect packet will only be sent once and the index will refer to the second word of the address.
TOA: Tone Only Address. Set if the address was programmed in the FLEX decoder as a tone-
only address. This bit will never be set for temporary or operator messaging addresses. No vector
word will be sent for tone-only addresses.
WN: Word number of vector (2 - 87). Describes the location in the frame of the vector word for
the detected address. This value is invalid for this packet if the TOA bit is set.
x: Unused bits. The value of these bits is not guaranteed.
12.4.3
Vector Packet
The Vector Field follows the Address Field in the FLEX protocol. Each Vector Packet must be
matched to its corresponding Address Packet. The ID of the vector packet is the word number
where the vector word was received in the frame. This value corresponds to the WN bits sent in
the associated address packet. The phase information in both the Address Packet and the Vector
Packet must also match. It is important to note for long addresses, the first message word will be
transmitted in the word location immediately following the associated vector. See12.5.2, Message
Building for a message building example. In this case, the word number (identified by b
to b
) in
6
0
the Vector Packet will indicate the message start of the second message word if the message is
longer than 1 word.
There are several types of vectors - 3 types of Numeric Vectors, a Short Message / Tone Only
Vector, a Hex / Binary Vector, an Alphanumeric Vector, a Secure Message Vector, and a Short
Instruction Vector. Each is described in the following pages. Two of the modes of the Short
Instruction Vector is used for assigning temporary addresses that may be associated with a group
call.
The Numeric, Hex / Binary, Alphanumeric, and Secure Message Vector Packets have associated
Message Word Packets in the message field. The host must use the n and b bits of the vector word
to calculate what message word locations are associated with the vector. The message word
locations and the phase must match.
Four of the vectors (Hex / Binary, Alphanumeric, Secure Message, and the temporary address
assignment modes of the Short Instruction) enable the FLEX decoder to begin the all frame mode.
This mode is required to allow for the decoding of temporary addresses and / or fragmented
messages. The host disables the All Frame Mode after the proper time by writing to the decoder
via the All Frame Mode Packet. See 12.5.3, Building a Fragmented Message and 12.5.4,
Operation of a Temporary Address for more information. For any Address Packet sent to the host
(except tone-only addresses), a corresponding Vector Packet will always be sent. If more than two
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