Technical information

Technician’s Handbook
88
PBX Property Management
System Interface
The PBX’s Property Management System (PMS) interface collects and
sends the following Hotel/Motel information to a customer’s PMS
computer through a dedicated bidirectional RS-232 port — typically a
Dataset programmed to a DNIC port.
 Maid and room status
 Guest check-in and check-out
 Guest name
 Auto wake-up and message waiting
 PMS related maintenance logs.
Property Management System Messages
A PMS message is a string of ASCII text characters.
For example, to light a message waiting lamp for guest room extension
number 2129, the customer’s PMS computer will send a string of ASCII
keyboard commands to the PMS interface.
The PMS message sent is:
^BMW 1 2129^C
When the PBX’s PMS interface receives and understands the message,
it will send an ACKnowledge character back to the customer’s PMS
computer.