NEC NDA-30115-001 用户手册
NDA-30115 Revision 1.0
Page 39
Property Management System - Communication Interface
Message Formats
MWL Status
Figure 4-8 MWL Status
Message fields are:
•
Extension -- Extension number. If the extension number is less than six digits,
left justify the number and fill the remaining bytes with space (20H) characters.
left justify the number and fill the remaining bytes with space (20H) characters.
•
Status -- Message Waiting Lamp status. The status values are:
•
0 -- No messages waiting.
•
1 -- Message waiting set by the NEAX.
•
4 -- Message waiting set by the PMS.
•
5 -- Message waiting set by both the PMS and NEAX.
•
Option -- Message Waiting Lamp status option. This field must always contain
zero (‘0’).
zero (‘0’).
•
VMC -- This is reserved for future use. Should be filled with two space (20H)
characters.
characters.
‘5’
‘3’ ‘1’
‘5’
‘1’ Extension
Status
Option
VMC
0
1
2
3
4
6
8
9
15
STX
SA
UA
EI
FTC
MSC
FC
6
1
02H ‘1’
‘!’
‘L’
ETX BCC
1
2
16
17
19
20
03H xx