17
c
ontrol
m
aster
Clock Errors
If a clock error occurs, the Clock Master LED will blink indicating that an error has occurred. Common causes for a
clock error include:
Attempting to change the
•
sample rate on a device other than the Clock Master
Attempting to change the clock source when the network is password protected
•
Removing or changing external clock sources on a digital I/O module
•
Incorrect configuration of an
•
external clock source on a digital I/O module
Attempting to use a sample rate higher than 96kHz with the 6416Y2 card
•
Network Sample Rate
When an analog device is the Control Master, the Control Master device is automatically designated as the
network Clock Master. It will remain the Clock Master until a different analog module is made the Control Master
or until a digital module such as the 6416Y2 card is added to the network and is assigned to be the Control Master
and Clock Master.
The network’s internal master clock is derived from the sample rate currently in use. The sample rate also affects
the total number of available A‑Net Slots available for use in the Pro64 network.
The Clock Master LED on the 6416Y2 card (labeled CLK) will light automatically when its Yamaha host is powered
on if the 6416Y2 card is Control Master and Clock Master for the Pro64 network.
The Sample Rate section of a rack‑mounted hardware I/O module’s front‑panel interface (e.g., 6416i Input Module)
includes a group of LED indicators for displaying the current network sample rate. One LED will be lit at all times.
The 6416Y2 card has no such LEDs. However, the current sample rate information
will
be sent to all Pro64 network
devices when a 6416Y2 card is Control Master/Clock Master.
The sample rate display on Pro64 I/O modules
will display the current network-wide sample
rate when a 6416Y2 A-Net Interface Card is
the Clock Master, receiving its clock from the
Yamaha host device.
The current sample rate for the network will be displayed on all I/O modules in the network, and will update
to reflect any changes made from the Yamaha host (such as changing the sample rate from 44.1kHz to 48kHz,
or from 48kHz to 96kHz). Only one sample rate can be used at a time in a Pro64 network. When using Pro64
Network Manager to configure a network, the current sample rate will be displayed in the status bar. The network
sample rate can be changed from the software but all rules outlined previously still apply.
P
N
ote
:
If multiple Yamaha devices with 6416Y2 cards installed are used in a Pro64 network, only one 6416Y2
card can be set as the Pro64 network Control Master. Each additional Yamaha device must be a clock
slave in this situation.
