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75NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 305-238-4373
RS-232 CONTROL PROTOCOLS
CONTROL COMMAND STRINGS
The ZR-6 MultiZone Receiver supports full two-way RS-232 control
communications. This greatly expands potential applications,
allowing complete integration with third-party control systems.
HARDWARE CONFIGURATION
3.5 mm female connector:
• Tip = Transmit
• Ring = Receive
• Sleeve = Ground
COMMUNICATION PARAMETERS
• 38,400 Baud
• 8 Data Bits
• 1 Stop Bit
• No parity
• No Flow Control
CONTROL COMMAND STRINGS
Information can only be requested for the active control zone.
NOTE: THE ZR-6 MULTIZONE RECEIVER DOES NOT CONTINUALLY
PROVIDE SYSTEM STATUS AND RESPONDS ONLY TO REQUESTS FOR
INFORMATION. IT THEREFORE MUST BE POLLED TO UPDATE THIRD-
PARTY DEVICES.
1) Making a zone the active control zone - Select the zone to
receive commands
Syntax:
znc,4,[zone #][cr]
znc, indicates the command type (zone command)
4, indicates an active zone change
[zone #] is the number of the zone to become active (1-18)
[cr] is a carriage return
EXAMPLE :
Command: znc,4,2[cr] (make zone 2 the active zone)
ZR-6 Response:
nc,4,2[cr] (confi rmation that Zone 2 is now
the active zone)
rznc, identifi es a response to a zone command
4, identifi es an active zone change
2 the number of the current active zone
[cr] carriage return
2) Request zone status – provides status of all active zone
parameters
Syntax:
znc,5,[cr]
znc,
indicates the command type (zone command)
5 indicates an active zone status request
[cr] is a carriage return
EXAMPLE :
Command: znc,5,[cr] (request status information for the
active zone)
ZR-6 Response:
usc,2,2,3,1,14,0,0,0[cr] (status of the
active zone)
usc, identifi es a response to a status request
2, identifies the response as an answer to a status
request
2, is the number of the current active zone for
which status is provided
3, number of the currently selected source (1-6) in
the active zone
1, On/Off status of the active zone (1=On, 0=Off)
14, active zone volume level (0-99)
0, active zone mute status (1=muted, 0=unmuted)
0, active zone bass level (-7 to +7)
0 active zone treble level (-7 to +7)
[cr] is a carriage return
NOTE: IN THE EXAMPLE ZONE 2 IS PLAYING SOURCE 3; THE ZONE IS ON
AT A VOLUME LEVEL OF 14%; THE ZONE IS UNMUTED; BASS AND TREBLE
ARE FLAT)
3) Zone specifi c command – for controlling parameters of a
single zone
Syntax:
zsc,[zone #],[com #][cr]
zsc,
indicates the command type (zone specifi c
command)
[zone #], Indicates the zone number to receive the
command (1-18)
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