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ZM8 Matrix Zone System
User Manual
13
RS 485 COMMUNICATION PROTOCOL
RS 485 Communication Protocol
Baud rate: 57600bps/S parity
Check: Odd parity check
Data 16 bytes
Accumulation: 2nd + 3rd + 4th data byte
Inquiry Data
The ZM8 sends inquiry data to 2 remote paging consoles, 8 remote wall
panels and extension Matrix. The new data will feedback to the Matrix
when any new data has been checked. Any extension ZM8 will only
enquire to its own 8 remote wall panels.
Inquiry Data to Paging Console
The ZM8 sends the inquiry data to remote paging consoles in the
following format:
AA 10 00 00 AM (accumulation)
AA: data head
10: inquiry to the paging console
00: meaningless
AM: (accumulation: 2nd + 3rd + 4th
data byte).
Feedback Data from Paging Console
The feedback data from the remote paging console to the Matrix after got
inquiry and ready for paging format as:
AA 11 Matrix address code zone data AM
AA: data head
11: zone pagong command
Matrix Address code
01: master matrix
02: extension matrix 1
03: extension matrix 2
04: extension matrix 3
Zone data: the zone data is in 8 bytes
0: no paging
1: paging, ie: binary system
00000011 B: zone 1 and zone 2 paging
0000100 B zone 3 paging
11111111 B: all 8 zone paging
AM: (accumulation: 2nd + 3rd + 4th data byte).
Status Data to Paging Consoles
After getting paging data from the remote paging console, the Matrix
sends zone status data to the paging console in the following format:
hA 1 E Matrix address code zone data AM
AA: data head
1 E: zone status feedback to paging console
Matrix address code:
01: master matrix
02: extension matrix 1
03: extension matrix 2
04: extension matrix 3
Zone data: the zone data is in 8 bytes
0: no paging
1: paging, ie: binary system
00000011 B: zone 1 and zone 2 busy
0000100 B zone 3 busy
11111111 B: all 8 zone busy
AM: (accumulation: 2nd + 3rd + 4th data byte).
Layout identification
