7
Modular ARCs
The Expansion Devices
The base devices listed above may be expanded upon with the following two expansion modules. By combining one of the
base devices with various expansion devices, it is possible to create up to a seven-gang wall panel which occupies a single
RS-485 address and connects to the Symetrix DSP hardware with one CAT5 cable. Refer to the Devices Configuration Table
below for all possibilities.
ARC-XLR
The ARC-XLR is
a modular remote
control for Symetrix
DSPs
that combines an
XLR audio connection
and push-to-talk button
with the ARC-SW4’s four
momentary pushbutton
switches that provide the
client with simple control
over zone selection plus
paging and more. Each
of the five pushbuttons
have corresponding tri-color LEDs which can provide user
feedback in a number of ways. LEDs may follow buttons
or LEDs and buttons may be programmed independently.
The XLR audio connection may be used to provide a remote
input or output for the system to create a paging station or
remote monitoring device. There is an onboard microphone
preamp. All control assignments, including button and LED
functionality, parameter limits and firmware version upgrades
are handled by the software included with Symetrix DSP
hardware. Power, control, and a single channel of ARC
Audio (for the onboard mic) are connected via RJ-45 inputs
or screw-type barrier strips. The ARC-MIC also supports
“sleep” mode for light-sensitive environments like theaters.
Hardware lockout pins are provided to accommodate
an installer-supplied key switch. The ARC-XLR is splash-
resistant and mounts into a single gang electrical box
(US), finished with a standard Decora
®
faceplate
(supplied in white).
ARC-EX4
The ARC-EX4 is the expander version of
the ARC-SW4.
Identical in form and function
to the ARC-SW4, it expands the capabilities
of a Modular ARC Wall Panel. The ARC-
EX4 cannot be used stand-alone nor can it
be attached to an ARC-2. A single RS-485
device address may have a total of four EX4
boards. The ARC-EX4 is splash-resistant and
mounts into a Decora
®
faceplate (not provided)
alongside its Modular ARC host.
To these base Modular ARC devices,
one can add a maximum of:
EXK
EX4
ARC-K1
1
4
ARC-SW4
2
3
ARC-SWK
1
3
ARC-MIC
2
3
ARC-XLR
2
3
ARC-EXK
The ARC-EXK is the expander version of
the ARC-K1.
Identical in form and function
to the ARC-K1, it expands the capabilities
of a Modular ARC Wall Panel. The ARC-
EXK cannot be used stand-alone nor can it
be attached to an ARC-2. A single RS-485
device address may have a total of two EXK
boards. The ARC-EXK is splash-resistant and
mounts into a Decora
®
faceplate (not provided)
alongside its Modular ARC host.
Hardware Overview
