Installation guide

Link Check Message 9-9
Chapter 9: Hotel - Property Management System (PMS)
MBX IP Hardware & Installation Guide
Link Check Message
Link Check message is used to check if the link or the client is in normal status.
MBX IP sends Link Check message every 5 seconds and the device should respond with an
Answer message to system. Link Check message can be simply discarded after sending
Answer message.
Link Check Message Format
Byte Order
Contents Data or Range
0
1
Message Length
0x06
0x00
2 Packet Sequence Number 0x00-0xFF
3 Type 0x00
4 Feature Code 0x00
5 Direction 0x00
Release 1.7
April 2012