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When the Host Device delivers a TAP Message Block and a
CHECKSUM ERROR
occurs, the paging system
will respond with an error message and a
<NAK><CR>
, which tells the Host Device to resend the transaction.
See Appendix E – TAP Response Codes
for more information on paging system response messages.
AN EXAMPLE <NAK> ERROR MESSAGE SEQUENCE:
514 Checksum Error – Exp. 2:9 Got 2:X<CR><NAK><CR>
If the TAP Message Block’s checksum is OK, but the TAP Message Block has a
FORMATTING ERROR
, the
paging system will respond with an error message and an
<RS><CR>
, which tells the host device to abandon
the transaction.
AN EXAMPLE <RS> ERROR MESSAGE SEQUENCE:
511 Invalid pager ID - not in database<CR><RS><CR>
PAGING SESSION LOGOUT
PAGING SESSION LOGOUT
allows a host device to stop communications with the paging system.
With the WaveWare v9E Paging System, the logout process is optional.
The SPS5 v9 Series Paging System
will automatically logout from a host device if the paging system detects a serial disconnection at any point
in its operation.
To initiate a logout sequence, the host device should send the following to the paging system:
<EOT><CR>
The paging system will respond with:
PAGING EXCHANGE DISCONNECT<CR><ESC><EOT><CR>.
