NEC NDA-30115-001 Network Card User Manual


 
Page 72 NDA-30115 Revision 1.0
Message Formats Property Management System - Communication Interface
Room Recovery (Model 60)
These messages are used by the PMS to update the database in the Model 60
version of the NEAX. First a Recovery Start Report (70-3) is sent. Then, one or
more sets of Room Image messages are sent. Finally, a Recovery End Report (70-
4) is sent.
The messages are grouped into a set of four messages. Within each set of four
messages the format of the messages is identical, except for the Function Codes,
which specify the message. Each set of messages contain more fields (and can
therefore convey more information) than the preceding set.
Each set of four messages is itself a set of two pairs of messages. The first pair of
messages is used when the PMS, in normal operation (i.e. not error recovery),
needs to update the information on a given extension. The second pair of messages
is used during recovery. This pair will only be used in response to the NEAX
sending a Nop Test Recover Answer or Recovery Request message.
The first message (of either pair) is used by the PMS as an update/ request for
information on an extension. If a field contains a valid entry, the NEAX database
is updated; if the field is entirely filled with NULL (00H) characters, it is a request
for the NEAX to send the value from the NEAX database. The second message is
the response from the NEAX to the PMS.
17-1 -- Room Image Set 1 (Normal Request from PMS)
17-2 -- Room Image Set 1 (Normal Answer from NEAX)
17-3 -- Room Image Set 1 (Recovery Request from PMS)
17-4 -- Room Image Set 1 (Recovery Answer from NEAX)
17-5 -- Room Image Set 2 (Normal Request from PMS)
17-6 -- Room Image Set 2 (Normal Answer from NEAX)
17-7 -- Room Image Set 2 (Recovery Request from PMS)
17-8 -- Room Image Set 2 (Recovery Answer from NEAX)
17-9 -- Room Image Set 3 (Normal Request from PMS)
17-A -- Room Image Set 3 (Normal Answer from NEAX)
17-B -- Room Image Set 3 (Recovery Request from PMS)
17-C -- Room Image Set 3 (Recovery Answer from NEAX)