Modular ARCs
Modular ARCs
Quick Start Guide
Modular ARCs (K1, SW4, SWK, MIC, XLR, EXK, EX4)
Safety
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
Quick Start Guide
2
Safety
Modular ARCs
What Ships in the Box
• A Modular ARC hardware device.
• One PS-6 (domestic) or PS-6E (export)
power supply which provides 9 VDC @
500 mA.
• A single-gang or double-gang white
Decora® wall plate (as applicable).
• This Quick Start Guide.
Important Safety
Instructions
!
@
#
$
%
What You Need to Provide
• A Windows® PC with 1 GHz or higher
Pentium® and:
• Windows XP® Vista®.
• 250 MB free storage space.
• 1024x768 graphics capability.
^
&
• 16-bit or higher colors.
• CD-ROM drive or Internet connection.
• 512 MB or more of RAM as required by
your operating system.
• Shielded twisted pair wire to connect
the Modular ARC’s RS-485 terminals to
the RS-485 port of a Symetrix hardware
device.
All Symetrix software, the Windows
applications that control all Symetrix
hardware, include a help module which
acts as a complete User’s Guide for both
hardware (including the Modular ARCs) and
software.
If you have questions beyond the scope
of the help module, contact our Customer
Support Group in the following ways:
8:00 am to 4:30 pm
Monday through Friday,
Pacific Time
This Class B Digital apparatus meets all
requirements of the Canadian InterferenceCausing Equipment Regulations
Cet appariel numerique de la classe B respecte
toutes les Exigences du Reglement sur le materiel
brouilleur du Canada.
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
TO REDUCE THE RISK OF FIRE OR
SHOCK DO NOT EXPOSE
WARNING: ELECTRIC
THIS EQUIPMENT TO RAIN OR MOISTURE
DE CHOC ELECTRIQUE
AVIS: RISQUE
NE PAS OUVRIR
Follow all instructions.
Do not use this apparatus near water.
This apparatus shall not be exposed to
dripping or splashing and no objects
filled with liquids, such as vases, shall be
placed on the apparatus.
SEE OWNERS MANUAL. VOIR CAHIER D’INSTRUCTIONS.
No user serviceable parts inside. Refer servicing to qualified service personnel.
Il ne se trouve a l’interieur aucune piece pourvant entre reparée l’usager.
S’adresser a un reparateur compétent.
G
The lightning flash with arrowhead
symbol within an equilateral triangle is
intended to alert the user of the presence
of uninsulated “dangerous voltage”
within the product’s enclosure that may
be of sufficient magnitude to constitute
a risk of electric shock to persons. The
exclamation point within an equilateral
triangle is intended to alert the user of
the presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the product (i.e.
this Quick Start Guide).
G
CAUTION: To prevent electric shock,
do not use the polarized plug supplied
with the unit with any extension cord,
receptacle, or other outlet unless the
prongs can be fully inserted.
G
Power Source: This Symetrix hardware
uses a switching power supply that
automatically adjusts to the applied
voltage. Ensure that your AC mains
voltage is somewhere between 100-240
VAC, 50-60 Hz. Use only the power
cord and connector specified for the
product and your operating locale. A
protective ground connection, by way of
the grounding conductor in the power
cord, is essential for safe operation. The
appliance inlet and coupler shall remain
readily operable once the apparatus has
been installed.
G
User Serviceable Parts: There are no
user serviceable parts inside this Symetrix
product. In case of failure, customers
inside the U.S. should refer all servicing to
the Symetrix factory. Customers outside
the U.S. should refer all servicing to an
authorized Symetrix distributor. Distributor
contact information is available online at:
http://www.symetrix.co.
Clean only with dry cloth.
Do not block any ventilation openings.
Install only in accordance with the
manufacturer’s instructions.
This apparatus shall be connected to
a mains socket outlet with a protective
earthing connection. Do not defeat
the safety purpose of the polarized or
grounding-type plug. A polarized plug has
two blades with one wider than the other.
A grounding type plug has two blades
and a third grounding prong. The wide
blade or the third prong are provided for
your safety. If the provided plug does not
fit into your outlet, consult an electrician
for replacement of the obsolete outlet.
BL
Protect the power cord from being
walked on or pinched particularly at
plugs, convenience receptacles, and the
point where they exit from the apparatus.
BM
Only use attachments/accessories
specified by the manufacturer.
BN
Use only with the cart, stand,
tripod, bracket, or table
specified by the manufacturer,
or sold with the apparatus.
When a cart is used, use
caution when moving the cart/apparatus
combination to avoid injury from tip-over.
BO
Unplug this apparatus during lightning
storms or when unused for long periods
of time.
BP
Refer all servicing to qualified service
personnel. Servicing is required when
the apparatus has been damaged in any
way, such as power-supply cord or plug
cord is damaged, liquid has been spilled
or objects have fallen into the apparatus,
the apparatus has been exposed to rain
or moisture, does not operate normally, or
has been dropped.
Web:http://www.symetrix.co
This device complies with part 15 of the FCC
Rules. Operation is subject to the following
two conditions: (1) This device may not cause
harmful interference, and (2) this device must
accept any interference received, including
interference that may cause undesired
operation.
Heed all warnings.
(
Tel: +1.425.778.7728
Keep these instructions.
Do not install near any heat sources such
as radiators, heat registers, stoves, or
other apparatus (including amplifiers) that
produce heat.
NOTE: The Modular ARCs require SymNet
Designer™ 5.5 or later for use with SymNet.
Not all Modular ARC models are supported
by all Integrator Series devices. Refer to
respective devices’ documentation for
details.
Getting Help
Read these instructions.
*
• CAT5 cables to connect any ARC to any
device with an RJ-45 ARC port.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
3
Warning
Quick Start Guide
The RJ-45 connectors labeled “ARC” are only for use with the ARC series of remotes.
DO NOT plug the ARC connectors on Symetrix products into any
RJ-45 connector labeled “SYMLINK”,“ETHERNET” or “COBRANET”.
The “ARC” RJ-45 connectors on Symetrix products can carry anywhere from 6 to 24 VDC which
can damage SymLink, Ethernet and CobraNet circuitry.
ARC
ARC
TRANSMIT
RECEIVE
SYMLINK
ETHERNET
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
4
COBRANET/
ETHERNET
Hardware Overview
Modular ARCs
Overview
The Modular ARCs are a series of configurable remotes
within the ARC family. The series consists of five base base
and two expansion devices. The Modular ARCs,
as their name implies, are expandable within a familiar
Decora® form factor. Note: Cooper brand Decora® plates
are recommended for use with the Modular ARCs due to
their better fit.
The Base Devices
ARC-K1
The ARC-K1 is a modular remote
control for Symetrix DSPs featuring
a push-button rotary encoder that
provides the client with simple control
of two (2) parameters in the system.
The 8-segment LED stack provides
instant user feedback, clearly
showing relative volume level. Two
additional LEDs, labeled “A” and “B”,
illuminate to indicate which of the two
available controls is active. All control
assignments, including
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 are
connected via RJ-45 inputs or screw-type barrier strips.
The ARC-K1 also supports “sleep” mode for light-sensitive
environments like theaters. Hardware lockout pins are
provided to accommodate an installer-supplied key switch
and software and hardware lockout functions can be
independently programmed. Upper and lower parameter
limits help contain the range of adjustment. The ARC-K1 is
splash-resistant and mounts into a single gang electrical box
(US), finished with a standard Decora® faceplate (supplied in
white).
The ARC-SW4 is a modular
remote control for Symetrix
DSPs featuring four momentary
pushbutton switches that provide the
client with simple control over source
selection, preset triggering and
more. Each of the four 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.
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 are connected via RJ-45 inputs or screw-type barrier
strips. The ARC-SW4 also supports “sleep” mode for lightsensitive environments like theaters. Hardware lockout pins
are provided to accommodate an installer-supplied key
switch. The ARC-SW4 is splash-resistant and mounts into
a single gang electrical box (US), finished with a standard
Decora® faceplate (supplied in white).
ARC-SW4
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
5
Hardware Overview
Quick Start Guide
ARC-SWK
The ARC-SWK is
a modular remote
control for Symetrix
DSPs that combines
the functional attributes
of the ARC-K1 and
ARC-SW4 into a single
product featuring a pushbutton rotary encoder
and four momentary
pushbutton switches
that provide the client
with simple control
over source selection with volume, room combining and
more. In addition to the programming modes supported
by the ARC-K1 and ARC-SW4, the ARC-SWK integrates
directly with the BGM Room Combiner modules in SymNet
providing an elegant room combining solution where all
wall panels update according to the room combine status.
The ARC-SWK also supports a “Select and Set” mode
that allows the buttons to select a parameter after which
the knob can adjust the selected parameter. 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 are
connected via RJ-45 inputs or screw-type barrier strips.
The ARC-SWK also supports “sleep” mode for lightsensitive environments like theaters. Hardware lockout pins
are provided to accommodate an installer-supplied key
switch and software and hardware lockout functions can be
independently programmed. Upper and lower parameter
limits help contain the range of adjustment. The ARC-SWK
is splash-resistant and mounts into a single gang electrical
box (US), finished with a standard Decora® faceplate
(supplied in white).
ARC-MIC
The ARC-MIC is
a modular remote
control for Symetrix
DSPs that combines
an onboard electret
condenser microphone
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
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
number of ways. LEDs may follow buttons or LEDs and
buttons may be programmed independently. The onboard
mic may be used not only for an integrated paging station
but also as a sense mic for an SPL Computer DSP
module. 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-MIC is splashresistant and mounts into a single gang electrical box (US),
finished with a standard Decora® faceplate
(supplied in white).
6
Hardware Overview
Modular ARCs
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 splashresistant and mounts into a single gang electrical box
(US), finished with a standard Decora® faceplate
(supplied in white).
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-EXK
ARC-EX4
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 ARCEXK 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.
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
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
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 ARCEX4 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.
7
Brain Anatomy
Quick Start Guide
Brain Anatomy
The Modular ARCs, true to their modular construction, utilize
an “expansion” board (which provides the user interface)
and a “brain” board (which provides the system, logic and
expansion connections, device addressing, processing,
etc.). Each Modular ARC must have one brain board to
which up to six extra expansion boards attach. Each brain
board has at least one expansion board attached by default
(an ARC-K1 already has one EXK). The brain
board possesses the host processor, system connection
and power jacks, configuration jumpers and device
address rotary switches. To quickly identify a brain board,
look for the RJ-45 jacks. The anatomy of a brain board is
outlined below:
J5: Logic Input
J2: Modular ARC Expansion Bus
Logic input addressable from SymNet
Designer’s RS-232/485 Controller
Number system. Pin 1 is the active
input, Pin 2 is ground.
Modular ARC expansion devices
daisy-chain from this connection.
J6: Hardware Lockout
Open = Unlocked, Jumpered = Locked.
See the Hardware Lockout section for
more information.
J7: Baud Rate Select
Jumpered = 115k, Open = 38.4k. See
the RS-485 Baud Rate section for more
information.
J8: Open Collector Output
S1: Device Address “Ones”
Logic output addressable from
SymNet Designer’s RS-232/485
Controller Number system. Pin 1 is
the active output, Pin 2 is ground.
Rotary switch which sets the device
address “ones” (1-9).
S2: Device Address “Tens”
Rotary switch which sets the device
address “tens” (10, 20, 30, 40, etc.).
J9: RJ-45 “ARC” ports
The ARC ports distribute RS-485 data,
power and an ARC Audio line to one
or more ARC devices over standard
CAT5 cable. These ports may be used
to chain multiple ARCs or to home
run back to any Symetrix rack mount
device with an ARC port.
J11: RS-485 Termination
Place a jumper here to terminate the
RS-485 bus at this device. Refer to the
RS-485 Termination section for more
information.
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
J12: RS-485 and Power
When powering a Modular ARC from the
included PS-6 power supply, RS-485 data
and Power both connect here. Connect
the PS-6 positive lead to “V+” and the
negative lead to “GND”. The RS-485
shield or ground also connects to “GND”
and the RS-485 conductor pair connects
the bus in a parallel fashion to “A” and B”.
WARNING! Do not use at the same time
as J9.
8
J13: ARC-Audio
The CAT5 cable connection provides
a balanced analog audio line
between the system and a remote
source or destination. Connects to
the MIC or XLR in the ARC-MIC or
ARC-XLR, respectively. Can also be
wired to an installer-supplied audio
source/destination.
Hardware Setup
Modular ARCs
EX4
Each RS-485 address (each brain
board) can be daisy-chained to
up to four EX4s, whose Board
IDs will range from zero to three.
A table showing which jumpers
to connect for each address is
screened onto the EX4. If the
base device already contains an
EX4 (as in the case of the SW4,
MIC and XLR), the Board ID of
zero will already be taken. If the
base device does not already
contain an EX4 (as in the case of
the K1), the EX4 Board IDs must
start at zero.
J3: Modular ARC
Expansion Bus
J2: Modular ARC Expansion
Bus
Connects to the
brain board or
expansion board
with the next
lowest Board ID.
Modular ARC expansion devices
daisy-chain from this connection.
J4: Board ID 1
The jumper position of J4
combined with the jumper
position of J5 determines
the Board ID (0-3). A table
showing which jumpers to
connect for each address is
screened onto the EX4.
J5: Board ID 2
The jumper position of J4
combined with the jumper
position of J5 determines the
Board ID (0-3). A table showing
which jumpers to connect for
each address is screened onto
the EX4.
EXK
Each RS-485 address (each brain
board) can be daisy-chained with
up to two EXKs. Since Board IDs
zero through three are reserved for
EX4s, the EXKs use Board IDs four
and five. A table showing which
jumpers to connect for each address
is screened onto the EXK. If the
base device already contains an EXK
(as in the case of the K1 or SWK),
the Board ID of four will already
be taken, so the added EXK must
be set to Board ID five. If the base
device does not contain an EXK (as
in the case of the SW4, MIC and
XLR), the added EXK Board IDs
must start at four.
J3: Modular ARC
Expansion Bus
J2: Modular ARC
Expansion Bus
Connects to the brain
board or expansion
board with the next
lowest Board ID.
Modular ARC
expansion devices
daisy-chain from
this connection.
J4: Board ID 1
The jumper position
of J4 determines the
Board ID (4-5). A
table showing which
jumpers to connect
for each address is
screened onto the EXK
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
9
Hardware Setup
Quick Start Guide
MIC
Each RS-485 address (each brain
board) can have one MIC or XLR.
There is no Board ID to set on the
MIC, however some wiring and
jumpers must be properly placed.
The diagram below specifies the
necessary connections.
J1: Modular ARC
Expansion Bus
J2: Electret Mic Connect/
Enable
Connects to the
brain board or
expansion board
with the next lowest
Board ID.
Electret capsule wires
to pin 1 (+) and pin 2 (-).
Jumpers 3/4 and 5/6 must
be placed in order to enable
the electret and supply
necessary gain (46 dB).
J4: ARC Audio
J3: XLR
Connects to
J13 on the brain
board.
XLR
(input with gain)
Each RS-485 address (each
brain board) can have one MIC
or XLR. There is no Board ID to
set on the XLR, however some
wiring and jumpers must be
properly placed. The diagram
below specifies the necessary
connections to configure the
XLR jack for a microphone input
with 46 dB of gain. No phantom
power is supplied and phantom
power must not be present on
the ARC Audio lines or damage
to the XLR will occur. This
configuration is useful for a local
dynamic paging or intercom
mic. The input from the mic is
boosted to nearly line level for
long distance transmission over
ARC Audio.
Not used for electret mic.
J1: Modular ARC
Expansion Bus
J2: Electret Mic
Connect/Enable
Connects to the
brain board or
expansion board
with the next lowest
Board ID.
No jumpers placed
when XLR is used.
J3: XLR
J4: ARC Audio
Audio lines from the
XLR jack connect here
to be amplified then
sent over ARC audio.
Connects to J13 on
the brain board.
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
10
Hardware Setup
Modular ARCs
XLR (input or output,
line or mic level)
Each RS-485 address (each
brain board) can have one MIC
or XLR. There is no Board ID to
set on the XLR, however some
wiring and jumpers must be
properly placed. The diagram
below specifies the necessary
connections to configure the
XLR jack for an input or output
at line level or microphone level
(mic gain and phantom power
supplied by Symetrix rack mount
device). Due to the nature of
sending low level audio signals
over CAT5, there are some
severe restrictions for mic level
signals in this configuration.
Refer to the ARC Audio section
for more information.
J1: Modular ARC
Expansion Bus
J2: Electret
Mic Connect/
Enable
Connects to the
brain board or
expansion board
with the next
lowest Board ID.
No jumpers
placed when
XLR is used.
J3: XLR
J4: ARC Audio
Not used for line or
mic level XLR I/O.
XLR wires directly
to J13 on the brain
board.
Not used for line or
mic level XLR I/O.
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
XLR: wires directly
to J13 on the brain
board.
11
Hardware Setup
Quick Start Guide
Logic Input
J5 on the Modular ARC provides an extra logic input which can
be wired to any simple closure by the installer. This logic input is
addressable by SymNet Designer’s RS-232/485 Controller Number
system. Pin 1 is the active input, Pin 2 is ground. A typical wiring
is shown below. Refer to SymNet Designer’s help for programming
information.
Note: You do not need to supply the
components on the "Internal" side.
These components are internal to the
Modular ARC and only illustrated here
for the purpose of understanding the
operation of the circuit.
Internal
External
Closure
Open Collector Output
J8 on the Modular ARC provides an open collector output which
can be used to fire an external LED indicator (LED lit when OC
inactive) or drive an external relay. This logic output is addressable
by SymNet Designer’s RS-232/485 Controller Number system. Pin
1 is the active
Note: You do not need to supply the components on
the "Internal" side. These components are internal to the
Modular ARC and only illustrated here for the purpose of
understanding the operation of the circuit.
Internal
output, Pin 2 is ground. Typical wirings are shown below.
Note: this output cannot drive an LED directly; an external
power source is required. Refer to SymNet Designer’s Help for
programming information.
External
to OC output
External
LED
Ground from external supply
1. External LED drive using
external supply for
more current
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
12
External Relay Supply
(24 VDC Max)
+V from
external supply
1N4004
Relay
50 mA Max
coil current
to OC output
Ground from external relay supply
2. External Relay Drive
ARC Network • ARC Audio
Modular ARCs
Remote ARCs
Disclaimer: From time to time we test the compatibility of our own
products with those of third parties. While we are happy to share with
our customers the results of our own studies as well as other possibly
unsubstantiated information regarding these third party products,
it is the policy of Symetrix, Inc. to neither endorse, recommend nor
support products manufactured and/or supplied by third parties. The
responsibility of choosing third party products which are compatible
with Symetrix products rests solely with the qualified contractor,
consultant or system designer.
The ARC ports distribute power and RS-485 data to one or more
ARCs arranged in one or more chains over standard CAT5 cable. Most
Symetrix products with an ARC port can power from two (2) to ten (10)
ARCs. (Please see the individual products’ documentation for specific
details.)
WARNING: The RJ-45 connectors labeled “ARC” are only
for use with the ARC series of remotes. DO NOT plug
the ARC connectors on Symetrix products into any
RJ-45 connector labeled “SYMLINK”, “ETHERNET” or
“COBRANET. The “ARC” RJ-45 connectors on Symetrix products
can carry anywhere from 6 to 24 VDC which can damage SymLink,
Ethernet and CobraNet circuitry.
ARC PORT PINOUT (both Grounds and
Powers required for specified distance)
Pin #
ARC Network Design
The ARC can be powered two ways: (1) over CAT5 via the RJ-45
“ARC” port on ARC-enabled Symetrix products, or (2) by local 6 to 24
VDC power supplied to the ARC’s terminal block connections.
The ARC’s power requirements vary depending on the voltage supplied
to it. At 15 VDC, it uses approximately 115 mA, while at 6 VDC it uses
approximately 300 mA maximum. As the voltage goes from 15 to 6
VDC, the current requirement increases accordingly.
ARCs can be daisy-chained and fed power over this daisy-chain
from the ARC port. However, as the length of the cable increases, so
does the resistive line loss, which lowers the voltage available at each
subsequent ARC. The actual power drain on each output from an ARC
port can vary substantially depending on the number of ARCs and the
distance each of them is separated by. In order to assist with system
design, Symetrix has available a Microsoft Excel spreadsheet that can
help a system designer determine power requirements based upon
cable length, number of ARCs and the power supply to be used. This
spreadsheet can be downloaded from the Symetrix Technical Support
pages at: http://www.symetrix.co.
Function
1
Audio (+)
2
Audio (-)
3
Common Ground
4
RS-485 Data (A)
5
RS-485 Data (B)
6
Common Ground
7
Power (+V)
8
Power (+V)
Note: The ARC Audio lines may be grounded at the Symetrix Rack-mount
device and the ARC wall panel to provide additional distance.
WARNING: When designing a system, one must be careful
not to double power any ARCs. If all pins on the CAT5
connections are used, power can travel over the CAT5
cable and reach any ARC on that particular chain. So,
power over CAT5 could potentially come from the
originating ARC port or from an ARC that is powered locally and then
daisy chained via CAT5 to other ARCs. In general, it is recommended
to use only one type of connector on the ARCs, either the RJ-45s (with
CAT5 cable) or the terminal blocks
The following table gives some indication of cabling limitations, based
on DC power only (the following table is only relevant for the RJ-45
ARC port
when powering the ARC-2 from the ARC-PS): minimum stated
distances assume 28 gauge CAT5 cabling, maximum stated distances
assume 24 gauge CAT5 cabling.
If power is not distributed over CAT5, each RS-485 chain will be limited
to 1000 ft in a star network configuration and 4000 ft in a daisy-chain
network configuration. Longer distances may be possible using third
party RS-485 extender products.
ARC Audio
ARC Audio provides a means to take a single balanced analog audio
line and either inject it into or pick it off an RS-485 network’s CAT5
cable run. An ARC Audio port on a Symetrix device may be wired to
a nearby device’s analog input or output. This provides a means of
easily running a single audio channel to or from a remote source or
destination. The ARC-MIC and ARC-XLR make use of ARC Audio to
transport audio signals back to a Symetrix rack mount device.
Note 1: The original Menu ARC remote (simply named “ARC”) does not
support ARC Audio lines and will ground the audio lines if connected.
Note 2: To avoid the possible grounding, mixing, or shorting of the
ARC Audio lines, it is recommended to home run any ARC devices
making use of the ARC Audio lines so that only one ARC device is on
each chain.
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
13
Limits of ARC Audio
Quick Start Guide
Limits of ARC Audio
Hardware Lockout
ARC Audio is a simple analog audio signal travelling the same cable as
the RS-485 data and power. As such, the usual audio signal cautions
apply. Avoid running parallel to other power lines or near any other
sources of EMI or RFI. Most CAT5 is unshielded and is susceptible to
interference and noise. We provide here the following information on
ARC Audio’s performance and limitations:
J6 on the Modular ARC provides a hardware lockout feature. Installers
may wire a key switch to this jumper to provide a simple means to
secure a remote in an installation. This function may be inverted or
selectively enabled/disabled from the host Symetrix device’s. Refer to
the device’s Help for more information.
Device Addressing
Line-level Balanced Audio:
Every RS-485 device (including all Menu ARCs, Modular ARCs, and
Control I/Os) connected to the same RS-485 bus must be uniquely
identified. The Modular ARCs use two rotary switches (S1 and S2) to
designate one of 99 device addresses. S1 determines the device’s
“ones” address and S2 determines the device’s “tens” address. For
example: to set an Modular ARC to device address 24, you would
place S1 in the “4” position and S2 in the “2” position.
Professional line level balanced signals can also be sent over up to
approximately 1500 feet of CAT5 without significant degradation.
All unbalanced signals should be avoided completely.
Mic-level Audio:
Unbuffered condenser or dynamic microphones should generally be
avoided, though it may be possible to achieve decent quality with cable
runs of less than 50 feet using a fairly hot microphone level with a
noise gate or expander in to clean up the signal. This technique does
not provide much flexibility within the system design, and therefore is
not recommended.
Baud Rate Select
J7 on the Modular ARC sets the RS-485 baud rate for the device.
Jumpered = 115 kbps, Open = 38.4 kbps. All devices on the same
RS-485 bus must be set to the same rate. Additionally, the device
hosting the RS-485 bus must be switched to the appropriate rate. As
of this writing, only SymNet Express is capable of hosting a 115k baud
rate. All other SymNet devices host a 38.4k baud rate. Refer to SymNet
Designer’s Help for information on setting the RS-485 baud rate.
Frequency response:
Frequency response can roll-off due to the capacitance of a long cable
run. The amount of roll-off is highly dependent on source impedance
(the output impedance of what is supplying the signal). Most pro audio
devices have low output impedances (200 Ohms or less) and do not
suffer significant roll-off (approximately -1 dB at 20 kHz with 1500 feet
of CAT5). A device with a 600 Ohm output impedance could cause
some audible roll-off (-3 dB at 10 kHz), but should be of sufficient
quality for speech signals.
Modular ARC Expansion Bus
As detailed on page three, J2 allows the daisy-chaining of expansion
boards. Each board must have a unique Board ID. This ID is set by J4
and J5 on the EX4 or J4 on the EXK.
Data Noise:
With an unbuffered mic and long cables, data noise may be audible as
a “motorboat” sound. Experimenting with RS-485 termination and baud
rate may improve the sound somewhat.
RS-485 Termination
The Modular ARCs feature an RS-485 termination jumper. Jumper
J11 at the bottom left of an Modular ARC’s brain board enables and
disables termination. Jumping pins 1 and 2 = terminated. For maximum
signal integrity, follow the termination guidelines below:
For star configurations, terminate at the ARC-PS, Control I/O
or DSP device.
RS-485 TERMINATION GUIDELINES
Daisy-chain length
Termination
0 - 200 ft.
No termination required
200 - 1000 ft.
(if powering over CAT5)
Terminate at the ARC
> 1000 ft.
(or if not powering over CAT5)
Terminate at the ARC-PS, Control I/O
or DSP device and at the furthest ARC
device
Note: Never terminate a single RS-485 bus at more than two devices.
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
14
Warranty and Service
Modular ARCs
The Symetrix Limited Warranty
Servicing Your Symetrix Product
Symetrix, Inc. expressly warrants that the product will be free from
defects in material and workmanship for two (2) years from the date the
product is shipped from the factory. Symetrix’s obligations under this
warranty will be limited to repairing or replacing, at Symetrix’s option,
the part or parts of the product which prove defective in material or
workmanship within two (2) years from the date the product is shipped
from the factory, provided that the Buyer gives Symetrix prompt notice
of any defect or failure and satisfactory proof thereof. Products may be
returned by Buyer only after a Return Authorization number (RA) has
been obtained from Symetrix. Buyer will prepay all freight charges to
return the product to the Symetrix factory. Symetrix reserves the right
to inspect any products which may be the subject of any warranty claim
before repair or replacement is carried out. Symetrix may, at its option,
require proof of the original date of purchase (dated copy of original
retail dealer’s invoice). Final determination of warranty coverage lies
solely with Symetrix. Products repaired under warranty will be returned
freight prepaid via United Parcel Service by Symetrix, to any location
within the Continental United States. Outside the Continental United
States, products will be returned freight collect.
If you have determined that your Symetrix product requires repair
services and you live outside of the United States please contact your
local Symetrix dealer or distributor for instructions on how to obtain
service. If you reside in the U.S. then proceed as follows:
Return Authorization
At the Symetrix factory, Symetrix will perform in-warranty or out-ofwarranty service on any product it has manufactured for a period of
three (3) years from date of discontinued manufacture.
Before sending anything to Symetrix, please contact our Customer
Service Department for a Return Authorization (RA) number. The
telephone number is +1.425.778.7728. Additionally, support is available
via the web site: http://support.symetrix.co.
In-warranty Repairs
To get your Symetrix product repaired under the terms of the warranty:
The foregoing warranties are in lieu of all other warranties,
whether oral, written, express, implied or statutory. Symetrix, Inc.
expressly disclaims any IMPLIED warranties, including fitness
for a particular purpose or merchantability. Symetrix’s warranty
obligation and buyer’s remedies hereunder are SOLELY and
exclusively as stated herein.
This Symetrix product is designed and manufactured for use in
professional and studio audio systems and is not intended for
other usage. With respect to products purchased by consumers for
personal, family, or household use, Symetrix expressly disclaims
all implied warranties, including but not limited to warranties of
merchantability and fitness for a particular purpose.
1.
Call us for an RA number (have the serial number, shipping and contact
information and description of the problem ready).
2.
Pack the unit in its original packaging materials.
3.
Include your name, address, daytime telephone number, and a brief
statement of the problem.
4.
Write the RA number on the outside of the box.
5.
Ship the unit to Symetrix, freight prepaid. We do not accept freight
collect shipments.
Just do these five things, and repairs made in-warranty will cost you only
one way freight charges. We’ll pay the return freight.
Symetrix does not authorize any third party, including any dealer or
sales representative, to assume any liability or make any additional
warranties or representation regarding this product information on behalf
of Symetrix.
If you don’t have the factory packaging materials, we recommend using
an oversize box. Wrap the unit in a plastic bag, surround it with bubblewrap, and place it in the box surrounded by Styrofoam peanuts. Be sure
there is enough clearance in the box to protect the rack ears. We won’t
return the unit in anything but Symetrix packaging for which we will have
to charge you. If the problem is due to operator misuse or error, you will
have to pay for both parts and labor. In any event, if there are charges
for the repair, you will pay for the return freight. All charges will be COD
unless you have made other arrangements (prepaid, Visa or Mastercard).
This limited warranty gives the buyer certain rights. You may have
additional rights provided by applicable law.
Out-of-warranty Repairs
Note: Some Symetrix products contain embedded software and may
also be accompanied by control software intended to be run on a
personal computer. Said software is specifically excluded from
this warranty.
If the warranty period has passed, you’ll be billed for all necessary parts,
labor, packaging materials, and freight charges. Please remember, you
must call for an RA number before sending the unit to Symetrix.
This limited warranty, with all terms, conditions and disclaimers set forth
herein, shall extend to the original purchaser and anyone who purchases
the product within the specified warranty period.
Limitation of Liability
The total liability of Symetrix on any claim, whether in contract, tort
(including negligence) or otherwise arising out of, connected with, or
resulting from the manufacture, sale, delivery, resale, repair, replacement
or use of any product will not exceed the price allocatable to the
product or any part thereof which gives rise to the claim. In no event will
Symetrix be liable for any incidental or consequential damages including
but not limited to damage for loss of revenue, cost of capital, claims of
customers for service interruptions or failure to supply, and costs and
expenses incurred in connection with labor, overhead, transportation,
installation or removal of products, substitute facilities or supply houses.
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
15
Item No. 53-0024
Modular ARCs Quick Start Guide
© 2009 Symetrix, Inc. All rights reserved. Printed in the United States of America. The information in this document is subject to change without notice.
Symetrix, Inc. shall not be liable for technical or editorial errors or omissions contained herein; nor is it liable for incidental or consequential damages
resulting from the furnishing, performance, or use of this material. Mention of third-party products is for informational purposes only and constitutes
neither an endorsement nor a recommendation. Symetrix assumes no responsibility with regard to the performance or use of these products. Under
copyright laws, no part of this brochure may be reproduced or transmitted in any form or by any means, electronic or mechanical, without permission
in writing from Symetrix, Inc. If, however, your only means of access is electronic, permission to print one copy is hereby granted. The following are
either Trademarks or Registered Trademarks of Symetrix, Inc.: Symetrix, SymNet, SymNet Designer, SymLink and CobraLink. Windows is a Registered
Trademark of Microsoft, Inc.. Other product names mentioned herein may be trademarks and/or registered trademarks of other companies and are
property of their respective owners.
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising