Control master functions, Enumeration, Control master functions enumeration – Aviom AllFrame User Manual

Page 46: All frame

eTwork

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

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

Link

Mute

Edit

Mute

Edit

Mute

+48V

Phase

Low Cut

SAVE

RECALL

Pad

+48V

Pad

+48V

Pad

+48V

Pad

+48V

Pad

+48V

Pad

+48V

Pad

+48V

Pad

+48V

Edit

Mute

Edit

Mute

Edit

Mute

Edit

Mute

Edit

Mute

Edit

Mute

Edit

Mute

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.