Integration Guide

WIT2410

will not be sent and will be discarded. This parameter is variable and depends on the

number of remotes currently registered.

Handle 63 is reserved for broadcast packets from the base to all remotes.

Acknowledgment requests are not supported for broadcasts. For this reason, it is a good

idea to send broadcast messages several times to increase the odds of reaching all

remotes.

3.1.3. Connect Packet

1110 1001 10HH HHHH RRRR TTTT 00NN NNNN <3-byte remote ID> (base, receive

only)

H : handle number (0-62)

R : receive sequence number (from previous cell)

T : transmit sequence number (from previous cell)

N : network number of the previous base (if roamed)

1110 1001 10HH HHHH RRRR TTTT 00NN NNNN <3-byte base ID> (remote, receive

only)

H : handle number (0-62)

R : receive sequence number

T : transmit sequence number

N : network number of base

Remotes must go through an automatic registration process when roaming from one base

to another, after loss of contact, or when acquiring a base signal for the first time after

power up. The base then assigns the remote a handle value, may or may not assign it a

dedicated time slice depending on the user settings, and notifies the user application of

the new remote with a connect packet.

The network number of the last base the remote was connected to is given to aid user

software in resending orphan packets that may have been sent to the remote's previous

cell. If the remote has been powered up for the first time and this is the first base

contacted, the last base ID will be reported as 80H.

3.1.4. Disconnect Packet (base only, receive only)

1110 1001 11HH HHHH 0111 1111

H : handle number (1-62)

When a remote goes out of range or roams to another cell, the base issues a disconnect

packet to indicate that the remote is no longer available.