Control master functions, Enumeration, Control master functions enumeration – Aviom AllFrame User Manual
Page 46: All frame
34
n
eTwork
s
eTTings
ALL
FRAME
™
Multi-Modular I/O System
The functions of the Control Master include:
System resource and information management
•
Setting
•
network mode (Auto or Manual*)
Management of
•
active channels in Auto Mode
System-level command and control functions
•
Keeping track of all Pro64 devices in the network (by type and quantity)
•
Control of the current system-wide
•
sample rate
• Clock Master
System lock via
•
password* on/off
Management of
•
Virtual Data Cable (VDC) resources
Management of
•
stereo link status
Communication with a PC via the Pro64 Network Manager software.
•
The Control Master status is identified with a red LED on the front panel of the Pro64 device currently assigned as
the Control Master.
* Not available on the F6 Modular I/O Frame.
Control Master Functions
This section describes the individual functions that the designated Control Master device in a Pro64 network
oversees.
Enumeration
When the Control Master is powered on, its first job is to identify and count all connected A-Net devices in the
network in a process called enumeration, similar to a PC booting up and loading its operating system. The time for
this process will vary based upon the number of devices in a network and cable distances between devices.
Enumeration is an automated process performed by the command and control portion of A-Net. There are no
user-controllable functions or settings.
During the enumeration process, all connected A-Net devices will flash their A-Net LEDs, indicating that a request
to be added to the Pro64 network is being made. Once granted entry by the Control Master, the individual device’s
blue A-Net LED will light solid to indicate that it is now receiving valid A-Net packets and is part of the network.
6416
m
A-NET SLOT
Edit Lock
Managed
Edit
CONTROL
MASTER
ENTER
CANCEL
Gain
(dB)
Port A
Port B
Auto
A-NET
TRANSMIT
Manual
VDC SLOT
RS-232
MIDI In
MIDI Out
GPIO In
GPIO Out
ASSIGN
PORT
CLOCK
MASTER
CONTROL
Sample Rate
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Link
Link
Link
Link
Link
Link
Link
Link
Mute
Edit
Mute
Edit
Mute
+48V
Phase
Low Cut
SAVE
RECALL
Pad
Ø
Pad
+48V
Ø
Pad
+48V
Ø
Pad
+48V
Ø
Pad
+48V
Ø
Pad
+48V
Ø
Pad
+48V
Ø
Pad
+48V
Ø
Pad
+48V
Edit
Mute
Edit
Mute
Edit
Mute
Edit
Mute
Edit
Mute
Edit
Mute
Edit
Mute
Mute
Mute
Mute
Edit
Edit
Edit
Edit
Mute
Edit
Mute
Edit
Mute
FUNCTION
Group 4
Group 3
Group 2
The blue LED in the A-Net icon is used to indicate network status on rack mount Pro64 devices.
If valid A-Net packets are not received, the device will continue to flash its A-Net LED and wait until a valid A-Net
stream is detected and communication with the Control Master is established.
During enumeration, any conflicts will also be resolved. For example, consider a new Auto Mode installation
using eight input devices set to the same A-Net Slot range with all of their input channels activated during a
bench configuration. When all these input devices are connected and then powered up, only one of them will be
allowed to have all 16 channels activated. The remaining seven devices will have their audio channels deactivated.
The Control Master device will determine which connected device gets the active A-Net Slots.