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Nevco 6mm Indoor Message Centers Installation Set

Model: 6mm Indoor Message CentersUpdated March 2026~36 min read
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Installation consists of four steps, Unpacking the Equipment, Message Center mounting, Connections, and Software setup. Be sure to read and understand all of the instructions before installing the equipment. Consult the "installer's trouble shooting guide" following this section for verifications each step has been installed and is working correctly.


  • Inspect the shipping container for damage. If any damage can be seen, contact the carrier immediately.
  • Carefully remove all equipment from its packing carton. Do not pry against the message center in any way.

  • Nevco strongly encourages you to check local codes before beginning the installation. You may wish to contact a local architect, contractor, or sign installer for assistance. Your Nevco Sales Representative may be able to assist you in finding professional installers who are familiar with this type of equipment.
  • Always use good mechanical practices when mounting the message center.
  • Use plated fastening devices to prevent rust or corrosion.
  • Mount the optional photocell out of direct sunlight to avoid an elevated reading.
  • Mount the two wireless devices (if present) in clear line of sight with each other.
  • For indoor installations, install angle iron on wall or other structure prior to attaching the message center. Angle iron and attachments (bolts, washers, etc.) are not included. See installation drawings for approximate distance between angle iron supports.
  • For outdoor installations, install tubing laterals on columns prior to installing the message center. Laterals should be welded or bolted to steel columns. Laterals and attachments (bolts, washers, nuts, etc.) are not included. See installation drawings for approximate distance between lateral supports. Brackets on message centers can be welded or bolted to the laterals.
  • Each message center comes with 2 lifting points on the top of the unit. When using the lifting points, make sure cables are vertical and not putting an undue horizontal force on the lifting points. Use of a spreader bar is recommended when using the lifting points.
  • For multi-section message centers, make sure the cabinets and supports line up vertically and horizontally. Cabinets should be installed as tight as possible to each other. Where the sections join together, a bracket shall be installed at the top and bottom. Half of the bracket should support each section.

Your Message Center was designed so that it can be mounted in a variety of ways. Please examine the installation drawings to determine the best mounting method for your location. Access to all internal components is through the front, accessibility to the rear of the cabinet is NOT necessary.

Indoor Mount

Outdoor Mount on Laterals

Marquee Mount on Framework

Marquee Ground Mount


Each message center, whether it is made up of two cabinets end to end, or two cabinets back to back (double sided), or a single cabinet, requires that power and signal be supplied to each cabinet by the installer. All internal connections have been completed and tested at the factory.

Both power and data should enter each message center cabinet at its lower left corner as viewed from the front. An access panel is provided for these connections. The "signal in" conduit attaches to the panel and a junction box is mounted on the panel for power connections. Similar access panels are installed on the back and bottom of the cabinet. All three panels are interchangeable so that the one with the junction box can be located in the most favorable position. The panel with the junction box can be moved to either of the other locations without disconnecting any cables inside the message center.

NOTE
NOTE: Be sure to reattach all panels so as to maintain a weather tight seal.

The optional light sensor should be mounted near this location and needs to be connected to a cable inside the message center behind the access panel.

At the lower right corner of the message center as viewed from the front is a similar arrangement for the "signal out" if needed. Used for side 2 of a two sided message center, and message centers made up of two cabinets mounted end to end.

NOTE
NOTE: Please see installation drawings for more details.

Each message center requires that power and signal be supplied to each cabinet by the installer. All internal connections have been completed and tested at the factory. Both power and data should enter each message center cabinet at its upper left corner as viewed from the front. A 15' Nema 5-15P to C13 power cable is included with the message center.

NOTE
NOTE: Please see installation drawings for more details.

  • Refer to installation prints for illustration of electrical connections.
WARNING
WARNING: This sign is intended to be installed in accordance with the requirements of Article 600 of the National Electrical Code and/or other applicable local codes. This includes proper grounding and bonding of the sign.
  • Consult Table 1 for power requirements for your message center model. Provide for a 30% safety factor to guard against tripping of the circuit breaker under low line conditions.
  • Be sure to include any lighted signs, and account for double sided displays when sizing the supply wiring necessary to support the circuit load.
  • A disconnect switch should be lockable or within sight of the sign per NEC article 600.
Cabinet DimensionsCurrent @120VACurrent @240VA
16mm Color Outdoor3x863
3x1094.5
3x1211.35.7
3x16 Left7.53.8
3x16 Right7.53.8
4x8105
4x10126
4x12 Left73.5
4x12 Right84
4x16 Left105
4x16 Right105
6mm Color Indoor3x85.82.9
3x1073.5
4x87.83.9
4x109.34.7

Table 1


  • If rigid EMT is used, use ¾" rain-tight conduit fittings to avoid cutting the ends off included pre-made cables.
WARNING
WARNING: Take care not to reverse the connections on the POE adapter as this will damage the controller. Refer to installation print and color coding for details.
NOTE
NOTE: Mobile Device and Customer Wireless Access Point are only required for Live Control of the display.

Figure 1 – Wireless Configuration

Figure 2 – Wired Configuration Fiber Optic

Figure 3 – Wired Configuration Ethernet


Once the message center is powered up after a minute or so it should display configuration status information similar to Figure 1 - Display Status Information Screen. This will remain on until the message center has internet connection and the end user has completed setup in their Nevco ONE account.

#16316457
Playlists: (NONE)
Display: 150x45 - CUSTOM
10:13:57 GMT-0500 (Central Daylight Time)
Software: UNKNOWN
Cloud Connect: NO

Figure 1 - Display Status Information Screen

It may be necessary to configure a static IP address depending upon the network requirements of the customer. The following instructions will show how to set the IP address and identify MAC address if needed for the IT administrator to open up access to reach the internet through a network Firewall.

  1. Download and install the Nevco ONE Controller App from the app store to your iOS or Android phone.
  2. Go stand within 50 feet of the powered message display.
  3. Open the Nevco ONE Controller App and expand the navigation menu. Then select the Devices option. You will notice an entry for the display device's serial number if previously connected otherwise tap the add (+) icon and select the display device from the list.
  1. Tap the edit icon to open the display device details. Once the device detail page is loaded the MAC address can be found on the Status tab.
  1. To setup a static IP address on the Settings tab expand the Advanced Settings section. Scroll up to the IP Networks/Ethernet section and select the Static IP enabled slider to activate. Then enter the appropriate networking configuration info.

The figure below labels the connections made by the installer from A – K. The chart below lists the problem that can be identified should each connection be faulty. Should a problem arise on any one component, consult the trouble shooting guide specific to that device.

NOTE
NOTE: All connections inside the Message Center have been made at the NEVCO Factory. Each Message Center requires an Ethernet connection to the local Network. Each Message Center also requires Power (see Table 1).
NOTE
NOTE: For double sided and/or double cabinet message centers. The input signal for subsequent cabinets comes from the output of the previous cabinet. A separate power circuit is required for each cabinet.
SituationSymptomConnectionSolution
The message Center is not displaying a messageThe fans on ALL power supplies are runningF, BEnsure POE is powered on and cables are connected
The fans on ALL power supplies are runningGEnsure an Ethernet straight through cable has been used, is making a good connection at both ends.
The fans on ALL power supplies are NOT runningJCheck Power Switch on disconnect box inside message center
JCheck connections in disconnect box (power hookup)
JCheck branch circuit; was there a photocell on an existing sign install?
On a double sided Message Center, One side is displaying the message, the other is notK, IEnsure an Ethernet straight through cable has been used, is making a good connection at both ends.
I cannot communicate with the message centerNo Red Power LED lit on Wireless Bridge POE.ECheck branch circuit and power at the receptacle. Adapter has LED indicator
No Red Power LED lit on Wireless Access Point POE.BCheck branch circuit and power at the receptacle. Adapter has LED indicator
Message Center does not have network (See Display Install Verification section)AEnsure Switch is turned on and working properly
A, CEnsure an Ethernet straight through cable has been used and is making a good connection at both ends.
User's manual with wireless equipment explains how to measure the wireless signal strengthDReorient the wireless device's antennas to eliminate obstructions between them
Light Sensor does NOT workNot installedHInstall sensor in message center
Not enabledHMake sure the light sensor is set to auto in V3Pro

If the problem persists please contact the Nevco Service Department.

800-851-4040


A hardware device that allows wireless communication devices to connect to a network.

Can also be configured as a

A hardware device used to connect two or more network segments.

Distributes the data inside the Message Center.

A group of pixels. Several Display Panels are combined to form the message center.

Power Over Ethernet. Used to inject power for use by a device connected to the Ethernet cable.

Converts the line voltage to 12 volts or 5 volts.

Disconnects power to a portion of the message center components. Cabinet may contain more than one.

Flat 16 conductor cable used to carry the data from the SCAN card to the display panels and from display panel to display panel.

Distributes the message center data to the SCAN card(s).

Stores, processes, and distributes the message center data to the V3SS.


After installation of the display it can be powered on and checked for networking connectivity. The Nevco ONE Player device that drives the display will cycle through diagnostic information and output it to the display. This will remain on the display until it has internet connectivity and the end user has completed setup in their Nevco ONE online account.

After initial boot up sequence which may briefly display images and, or all white sections, Information similar to the diagnostic example should begin. The actual output may vary slightly and depending on the size of the display not all lines may be visible at once and will cycle through several lines at a time. The important lines to observe are:

  • Ethernet: - This indicates if the device has connected to a local area network (LAN) and will display the device's [IP address/IP Mask] and the [Gateway IP address]. If a network was not detected it will show "No IP". The default networking client configuration of the Player is for it to expect to be assigned an IP address via DHCP.
  • Cloud Connect: - If the device has internet connectivity it will show "one.nevco.com", otherwise it will show "NO"

If the Cloud Connect status is good then networking installation to the device is complete and validated. If device has an IP address but is not cloud connected then there likely is additional network configuration to be performed on the customers network.

Test Player #123456
Playlists: 0
Display: 1920x1080 - HDTV
08:19:22 GMT-0500 (Central Daylight Time)
Software: Ver: 2.1.13 Act valid Pri
Ethernet: 192.168.1.5/24 192.168.1.1
Cloud Connect: one.nevco.com
Org: 4ca83c1d-79a3-48fa-81da-5a5224f7b292
Org Authorized: NO
Resource Sync: 0/13

Figure 2 - Display Diagnostic Example


6mm Message Centers

ModelWidthHeightWeight
3' x 8'96 in36 3/32 in94 lbs.
3' x 10'120 in36 3/32 in112 lbs.
4' x 8'96 in48 in125 lbs.
4' x 10'120 in48 in150 lbs.

Attach brackets to wall using the following dimensions. Anchor types should be evaluated and selected by an engineer or architect familiar with the building's construction. (Attachment by Others)

Message Center SizeABC
3' x 8'72"35 1/4"12"
3' x 10'96"35 1/4"12"
4' x 8'72"47 1/8"12"
4' x 10'96"47 1/8"12"

Attach cabinet to brackets

Bolt cabinet to bracket using (4) 3/8" serrated flange bolts per bracket (Supplied by Nevco). Note orientation of brackets.


PartDescriptionSizeLengthQuantity
A8' Message Center AngleSteel Angle 2"x2"x1/8"7'2
B10' Message Center AngleSteel Angle 2"x2"x1/8"9'2

Mount 2" x 2" x 1/8" angle to the wall. (Steel angles and connections by others)

Provide Attachment to wall at minimum of three locations. Anchor types should be evaluated and selected by an engineer or architect familiar with the building's construction.

Attach 12" angle brackets to back of message center using (4) 3/8" serrated flange bolts (supplied by Nevco). Note orientation of brackets.

Attach 12" angle brackets to top message center brackets using 3/8" bolts, washers, and nuts (Supplied by Nevco).

Message CenterCD
3' x 8'31 3/4"27 3/4"
3' x 10'31 3/4"27 3/4"
4' x 8'43 5/8"39 11/16"
4' x 10'43 5/8"39 11/16"

Attach message center to 2" x 2" Angle on wall using 5/16" drill screws or 3/8" bolts (Supplied by Others). Minimum of 2 per bracket.

Right Side View — 8 in depth


WARNING
WARNING: This display is intended to be installed in accordance with the requirements of Article 600 of the National Electrical Code and/or other applicable local codes. This includes proper grounding and bonding of the sign. All personnel who work with electrical connections must be educated in the safe procedures for installing and repairing electrical connections before they are given the responsibility of performing such tasks.
NOTE
NOTE: National Electrical Code requires a disconnect switch within sight of sign or lockable within the building. If a subpanel is fed via a breaker from a main panel inside the building, ensure a lockable panel is installed.

Rear View

  • Power Location — red
  • Signal Location — blue

Connect power on message center using 15' power cable. Installer to provide a receptacle for power connection.

For Wireless Installations that require a more powerful signal, mount POE on top of message center. See sheet 6 for details.

  • Signal In
  • Signal Out (If Required)
Message Center@120VAC@208VAC@240VAC
3' x 8'5.8A3.4A2.9A
3' x 10'7.0A4.0A3.5A
4' x 8'7.8A4.5A3.9A
4' x 10'9.3A5.4A4.7A
Computer0.5AN/AN/A

Wireless Connection

  • Point client bridge at access point in control room to obtain required signal strength.
  • 3 bars required for adequate signal.
  • POE (120VAC power connection required)
  • Ethernet Cable (straight through from receiver to POE)
  • Crossover Ethernet Signal to Signal In on Message Center

Client Bridge (see sheet 8 for mounting)


Wireless Connection

Power Over Ethernet Supply (POE)

  1. Cut supplied adhesive-backed fastening material into (2) 2" pieces.
  2. Peal backing off of one piece and place on top of cabinet in desired location.
  3. Place second piece on back of POE.
  4. Press POE firmly onto top of cabinet.
  • 25' Ethernet (color coded white) straight through from "POE" to wireless receiver (supplied by Nevco)
  • Signal to message center: 25' ethernet crossover from "LAN" to message center SIGNAL-IN. Color coded red.
  • Outlet and cover supplied by Nevco.
  • Incoming Power
  • Power adapter supplied by Nevco.

Wireless Connection

  • Fasten client bridge to mounting bracket using 2 supplied zip-ties.
  • Run zip-ties through two holes in bracket and through slot on client bridge.
  • Client bridge can be mounted to bracket at various angles to achieve optimum line of sight to access point in control room.
  • Attach bracket to wall (Attachment by Others)

Wired Connection — Less than 325'

  • Cat5e <325' from LAN to Signal In on cabinet
  • Network Switch/Router

Wired Connection — Greater than 325'

ETHERNET CABLE

  • Display Side: 25' Signal-In on message center.
  • Control Room Side: 3' to LAN on switch
  • 12V AC/DC adaptor to Media Converter
  • Conduit fittings supplied by others. Use only rain-tight fittings.
  • Incoming Fiber Optic Signal
  • Incoming Power
  • Box, outlet and cover supplied by Nevco
  • SFP TO LC FIBER ADAPTER
  • \* Media Converter (mount on back of raintight box)
  • Network Switch/Router
  • Cat5e
  • Fiber Optic Data Run
  • Cat5e from fiber converter to Signal In on Cabinet
  • Fiber to Ethernet Converter Box (Shown at left)

Sign Power Connections

  • Black — Line
  • White — Neutral
  • Green — Ground
  • Wirenuts Provided
WARNING
WARNING (Important. Read before Installation.): Power entrances are located on access panels with 2x4 box. The location of this panel may vary between different message centers. Access panels can be swapped to allow placement of incoming power/signal on the side, back or bottom of the message center typically. This sign is intended to be installed in accordance with the requirements of Article 600 of the National Electrical Code and/or other applicable local codes. This includes proper grounding and bonding of the sign. All personnel who work with electrical connections must be educated in the safe procedures for installing and repairing electrical connections before they are given the responsibility of performing such tasks. Conduit and fittings are supplied by installer.
NOTE
NOTE: \** National Electrical Code requires a disconnect switch within Sight of the sign or lockable within the building. If neither is available, install a disconnect at the sign.
NOTE
NOTE: It is not necessary to remove message center display panels to make any of the above connections.
  • Grounded pigtail located inside 2x4 box. Must connect when connecting power.
  • Power/Signal-In panel can be relocated to side, bottom or back of message centers for wall mounts or adjacent signs.
  • Feed panel through hole as shown to change location of access panels.
  • Raintight Box — Applies to installations greater than 325 ft. (See Sheet 2)
  • \* Disconnect Switch
  • Sign Power to 2x4 Box (consult installation instructions for amperage requirement)
  • Power from Branch Circuit
  • Power to Raintight Box
  • 25' Crossover Ethernet Signal to Power/Signal-In Access Panel.
  • Fiber Optic Signal from Control Room

NOTE
NOTE: This Raintight box only applies to installations greater than 325 ft.

ETHERNET CABLE

  • Display Side: 25' Signal-In on message center.
  • Control Room Side: 3' to Composer PC
  • \* Media Converter (mount on back of raintight box)
  • 12V AC/DC adaptor to Media Converter
  • Incoming Fiber Optic Signal
  • Incoming Power
  • Box, outlet and cover supplied by Nevco
  • Conduit fittings supplied by others. Use only rain-tight fittings.
  • SFP TO LC FIBER ADAPTER
  • Media Converter Harness

\* Install media converter using two 2" pieces of velcro-type fastener provided by Nevco. Peal adhesive backing and place a strip on back of raintight box and a strip on the media converter. Press firmly to attach.

  1. Connect same color fiber optic cable to "TX" in the control room that is connected to "RX" at the outdoor junction box. Connect same color fiber optic cable to "RX" in the control room that is connected to "TX" at the outdoor junction box. Only attempt termination of fiber optic connections if properly trained and qualified.
  2. The rain-tight box and components shown above are required at the display and in the control room. Make connections as shown both sides.

WARNING
WARNING (Important. Read before installation.): Power entrances are located on access panels with 2x4 box. The location of this panel may vary between different message centers. Access panels can be swapped to allow placement of incoming power/signal on the side, back or bottom of the message center typically. This sign is intended to be installed in accordance with the requirements of Article 600 of the National Electrical Code and/or other applicable local codes. This includes proper grounding and bonding of the sign. All personnel who work with electrical connections must be educated in the safe procedures for installing and repairing electrical connections before they are given the responsibility of performing such tasks. Conduit and fittings are supplied by installer.
  • Temperature Sensor/Photo Cell
  • Power
  • Signal Out (remove plug or knockout to make connection)
  • Power/Signal-In Panel

For double sided message centers, connect cable here and run straight through to Signal-In of second message center.

  • Connect ethernet from Signal-Out of first cabinet straight through to Signal-In of second cabinet.
  • Remove panel and re-mount according to label with 2x4 box on outside of cabinet.
  • Signal-Out
  • Power
  • Power/Signal-In Panel

Cabinet 1 is identified by Nevco logo next to Power/Signal-In panel.

NOTE
NOTE: Remove knockouts in access panels where necessary to make connections.
  • Power, Signal-In (ethernet connection from media converter)
  • Signal Out — Signal In — Signal Out (Message Center A)
  • Power, Signal In — Signal Out — Signal In (Message Center B)
  • Child Right — Parent Left
  • Child Left — Child Right
  • Power (both cabinets)
NOTE
NOTE: Cabinet to cabinet signal connections are straight through ethernet.

Sign Power Connections

  • Black — Line
  • White — Neutral
  • Green — Ground
  • Wirenuts Provided
WARNING
WARNING (Important. Read before installation.): Power entrances are located on access panels with 2x4 box. The location of this panel may vary between different message centers. Access panels can be swapped to allow placement of incoming power/signal on the side, back or bottom of the message center typically. This sign is intended to be installed in accordance with the requirements of Article 600 of the National Electrical Code and/or other applicable local codes. This includes proper grounding and bonding of the sign. All personnel who work with electrical connections must be educated in the safe procedures for installing and repairing electrical connections before they are given the responsibility of performing such tasks. Conduit and fittings are supplied by installer.
NOTE
NOTE: \** National Electric code requires a disconnect switch within Sight of the sign or lockable within the building. If neither is available, install a disconnect at the sign.
NOTE
NOTE: It is not necessary to remove message center display panels to make any connections.
NOTE
NOTE: For indoor installations, a raintight box is not required. Make connections same as above.
  • Grounded pigtail located inside 2x4 box. Must connect when connecting power.
  • Make connections by removing other access panel near Power/Signal-In panel. Replace all covers when connections have been made.
  • \* Disconnect Switch
  • Sign Power to 2x4 Box (consult installation instructions for amperage requirement)
  • Power from Branch Circuit
  • Power to Raintight Box
  • Ethernet Signal to Power/Signal-In Access Panel.
  • Raintight Box (See Sheet 2)

Client Bridge

  • Mount in Clear-Line-Of-Sight to wireless transmitter.
  • Point client bridge at access point in control room to obtain required signal strength.
  • Ethernet Cable (straight through from receiver to POE)
  • 3 bars required for adequate signal (Signal Strength Meter)

Wireless Connection — Inside Raintight Box (Door Removed for Clarity)

Power Over Ethernet Supply (POE)

  1. Cut supplied adhesive-backed fastening material into (2) 2" pieces.
  2. Peal backing off of one piece and place on back of raintight box in desired location.
  3. Place second piece on back of POE.
  4. Press POE firmly onto back of raintight box.
  • 25' Ethernet from "POE" to wireless receiver (supplied by Nevco)
  • 25' ethernet from "LAN" to message center SIGNAL-IN. Signal to message center.
  • Power adapter supplied by Nevco.
  • Water-tight bushing supplied by Nevco (for ethernet cable to wireless receiver)
  • Water-tight fittings required (supplied by others)
  • Incoming Power
  • Box, outlet and cover supplied by Nevco.
  1. Use raintight fittings.
  2. Indoor installations do not require a rain-tight box. Make connections same as above.

WARNING
WARNING (Important. Read before installation.): Power entrances are located on access panels with 2x4 box. The location of this panel may vary between different message centers. Access panels can be swapped to allow placement of incoming power/signal on the side, back or bottom of the message center typically. This sign is intended to be installed in accordance with the requirements of Article 600 of the National Electrical Code and/or other applicable local codes. This includes proper grounding and bonding of the sign. All personnel who work with electrical connections must be educated in the safe procedures for installing and repairing electrical connections before they are given the responsibility of performing such tasks. Conduit and fittings are supplied by installer.
  • Temperature Sensor/Photo Cell
  • Power
  • Signal Out (remove plug or knockout to make connection)
  • Power/Signal-In Panel

For double sided message centers, connect cable here and run straight through to Signal-In of second message center.

  • Connect ethernet from Signal-Out of first cabinet straight through to Signal-In of second cabinet.
  • Remove panel and re-mount according to label with 2x4 box on outside of cabinet.
  • Signal-Out
  • Power
  • Power/Signal-In Panel

Cabinet 1 is identified by Nevco logo next to Power/Signal-In panel.

NOTE
NOTE: Remove knockouts in access panels where necessary to make connections.
  • Power, Signal-In (ethernet connection from media converter)
  • Signal Out — Signal In — Signal Out (Message Center A)
  • Power, Signal In — Signal Out — Signal In (Message Center B)
  • Child Right — Parent Left
  • Child Left — Child Right
  • Power (both cabinets)
NOTE
NOTE: Cabinet to cabinet signal connections are straight through ethernet.

Wireless Connection

NOTE
NOTE (Important): Wireless devices should be in Clear Line of Sight from each other. Penetration of obstacles by the wireless signal is dependent on the material of the obstacle as well as the overall distance between devices. Both units are suitable for outdoor installation. If building walls become a problem, mount the access point outside the building.
  • Client Bridge
  • Access Point
  • Remove cover and plug into ethernet port closest to the center of the access point.
  • 25' ethernet
  • 3' Ethernet
  • LAN
  • Power Over Ethernet (POE) Supply
  • Ethernet Switch (Provided by Customer)

Wireless Connection

  • Fasten client bridge to mounting bracket using 2 supplied zip-ties.
  • Run zip-ties through two holes in bracket and through slot on client bridge.
  • Client bridge can be mounted to bracket at various angles to achieve optimum line of sight to access point in control room.
  • Bolt or clamp bracket to column or other structure. (hardware supplied by others)
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