Rs232 Protocol - Integra MZA-4.7 Instruction Manual

RS232 Protocol

The RS232 serial port provides data acquisition and control of Integra networks by a home automation system, or PC.
The interconnecting cable must be straight: 9 pin 'D' connectors.
Baud Rate = 9600, Characters are all ASCII.
Command Structure: <command><zone><data>line feed.
Command
Command
01
02
03
04
05
06
07
09
0B
0C
0D
0F
11
12
1C
1D
1E
26
Zone
Integra amplifiers and keypads are encoded with up to 32 zones
The zone byte is used for checking if the command is applicable to the device receiving the command and if so, for
optionally selecting a "sub-device", e.g. a bank or part of a device. All Zones are addressed using FF.
– The lower 5 bits of the zone byte represent the zone 0 - 31 selection, i.e:
• 00000 bin = 00 (hex) = zone 0
• 00001 bin = 01 (hex) = zone 1
• 01010 bin = 0A (hex) = zone 10
• 11111 bin = 1F (hex) = zone 31
– The upper 3 bits represent the sub-device. The sub-device codes for the MZA-4.7 are:
• standard amplifier
• page preset amplifier
• standard preamplifier
• page preset preamplifier
Examples: Addressing a zone 10 preamplifier: Binary 010-01010 or 2A hex
Addressing a zone 10 amplifier: Binary 000-01010 or 0A hex
Addressing all Zone amp & preamplifier: FF hex
16
Description
Standby
Mute
Source Selection
Volume
Bass
Treble
Balance
Send All parameters
Cause key press on Keypad
Amplifier features
Maximum Volume Limit
Link Zone
Volume Up
Volume Down
Zone Name
Preamplifier Volume Mode
Preset Selection / status
Volume BCD format
= 000
= 001
= 010
= 011
Send ASCII "2A"
Send ASCII "0A"
Send ASCII "FF"