NEC NEAX2400 IMX Features Manual page 131

Service Conditions (cont'd)
3. Message format:
S
S
T
A
X
Note:
The Block Check Code is for the Longitudinal Redundancy Check.
On detecting STX, the computation starts (STX is excluded).
On detecting ETX, the computation ends (ETX is included).
4. Data format and contents of TEXT are in conformity with Bell System Voice Communications Technical
Reference Publication No. 42707, PMS Data Link Interface Specifications. (Details are in accord with the
separate specifications).
5. Besides the above specifications, the following information is added:
WAKE UP Set/Cancel
Room Status Change
6. When PMS is equipped, * and # cannot be used as part of the station numbers.
7. Only one PMS can be accommodated in an FCCS network.
NEAX2400 IMX Hotel Features and Specifications
NDA-24245, Issue 2
PMS Interface
U
TEXT
A
(PMS
(PMS
STX: Start of Text
SA: Station Address - 31 Hex (1) is used
E
UA: I/O Unit Address - 21 Hex (!) is used
X
T
ETX: End of Text
BCC: Block Check Code
PBX)
PBX)
P-29
(Note)
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