Lucent Technologies 8.2 User Manual

Page of 1707
DEFINITY ECS Release 8.2
Administrator’s Guide  
555-233-506  
Issue 1
April 2000
Features and technical reference 
1361
Hospitality features 
20
The PMS Interface provides the following:
A communications protocol for controlling message exchange between the 
switch and a PMS
An application module for controlling the operation of PMS features
Status data on all guest/patient rooms for selected features
The protocol is full-duplex asynchronous and provides the mechanisms for setting 
up a data session with PMS, message-exchange control, error identification, and 
recovery. The interface supports standard data rates.
Two protocol modes are provided: the normal-protocol mode as described above, 
and transparent-protocol mode. Normal-protocol mode supports a character set 
that has a combination of Binary Coded Decimal (BCD) characters and ASCII 
characters. Transparent-protocol mode supports a complete ASCII-character set.
The application module of the PMS Interface implements requested features and 
provides backup if the PMS link is down. Whether or not the link is down, the 
switch always maintains the following data for each room:
Whether the room is vacant or occupied
Whether the phone’s message lamp is on or off
Whether a controlled restriction is active at the phone and, if so, which one
The guest’s name and coverage path
Names Registration
Activated via 
administration
Activated via PMS 
terminal — Transparent or 
ASCII mode
Room Change/Swap 
and Guest 
Information 
Input/Change
Activated via 
administration
Activated via PMS 
terminal — Normal, 
Transparent, or ASCII 
mode
Room Occupancy
Activated via console 
button
Activated via PMS 
terminal — Normal, 
Transparent, or ASCII 
mode
Table 52.
PMS/Switch links
Feature
Switch Only
With PMS