16
c
ontrol
m
aster
Control Master and Clock Source
The Pro64 device designated as Control Master is also in control of the network master clock. The Clock Master
LED lights to indicate that a module is designated as the network’s master clock source. (The 6416dio Digital I/O
Module is the only exception to this rule.)
RS–232/422
STEREO LINK
6416
Y2
B
A
ON
CTL
CLK
AUTO
ERR
1 2 3 4 5 6 7 8 9 10 11 12
The red Clock Master (CLK) LED lights when a Pro64 device is the Control Master.
When an analog I/O module is the Control Master, no other analog module can be used as a clock source in an
all‑analog network. When a 6416Y2 console interface card is part of a Pro64 network, the 6416Y2 can be used as a
Clock Master for the network, but it must also be the network’s Control Master to do so.
When using a 6416Y2 card as the Clock Master, the clock is derived from the Yamaha host device and shared
throughout the Pro64 network. That clock reference can be the Yamaha host’s internal clock or an external clock
to which the Yamaha host device is synced. Changes to the host device’s sample rate will affect available A‑Net
Slots.
Multiple 6416Y2 cards can be used in a Yamaha host device, but only
one
can be set to be Control Master, which
automatically makes this card the Clock Master. If a 6416Y2 card is the Control Master it cannot simultaneously
send m‑control remote mic preamp control data.
Other Clock Sources
External clock sources for the Pro64 network can include:
The
•
internal clock from the Yamaha device —the 6416Y2 card must be the network’s
Control Master
Word Clock received via the external Word Clock inputs on a
•
Yamaha device—the
6416Y2 card must be the network’s Control Master
•
Word Clock connected to the dedicated BNC Word Clock jack on a Pro64 digital I/O
device, such as the 6416dio Digital I/O Module or AllFrame F6
•
The AES3 (AES/EBU) clock signal embedded in an AES3 digital signal connected to a
Pro64 digital I/O module such as the 6416dio or AllFrame
