Difference between revisions of "ENA2100-AC Amplifier - Mounting and Installation"

Latest revision as of 13:16, 6 July 2022

This article describes the mounting and installation of the ENA2100-AC amplifier.

Installation

Overview - Front

1	Mounting Flanges	The mounting flanges are used to mount the unit in 19” equipment racks with 2HU in double configuration.
2	Ventilation Inlets	The ventilation inlets should be kept free of obstacles and dust. Fans control the airflow based on internal temperature.
3	Status Indicators	The status indicators are used to display the status of important parameters like power supply and faults. There is also a VU indicator for channel 1 and channel 2.

Overview - Back

1	Ethernet Ports	Redundant Ethernet connections for audio and control data.
2	Audio Input	Line-in audio input for external audio sources. Nominal input level: 100 mVRMS – 1 VRMS
3	Control Inputs	2 configurable control inputs. Each input is activated by closing the loop between the two terminals.
4	Control Outputs	2 configurable control outputs. Each is made of a 24VDC signal. The 24VDC can source max 200mA and has overcurrent protection.
5	Fault Relay Output	A switching relay (NO, NC & COM) kept in the active position between COM and NO as long as no faults are present in the device.
6	Speaker Outputs	100 and 70 volts outputs per channel.
7	Factory Reset Button	To reset the amplifier to factory default settings: Insert a straightened paper clip or similar device into the hole to press the reset button and hold for 7 to 8 seconds while powering up the amplifier.
8	AC Power Switch	Power switch for AC power.
9	AC Power Inlet	AC power inlet for 110 to 230 VAC. The power inlet has a V-Lock mechanism for a secure connection.
10	Ground Connection	Ground connection for grounding of the unit. This is connected in parallel with the ground connection in the AC power inlet.

Placement and Stacking

The amplifier is designed to deliver full power at ambient temperatures up to 55 °C. As long as the equipment rack is well ventilated, amplifiers can be stacked with no extra space between them. It is however recommended to add 1 HU between every group of 4 amplifiers.

Mounting

There are two kits available for mounting of the amplifier:

Kit for mounting a single ENA2100-AC amplifier in a 19-inch rack.
- ENA2100-AC single mounting, item Number: 1023532100

Single Amplifier kit

Kit for mounting two ENA2100-AC amplifiers together in a 19-inch rack.
- ENA2100-AC double mounting, item Number: 1023532110

Double Amplifier kit

Power Supply

The Amplifier is connected to the equipment rack’s mains power. AC power inlet for 110 to 230 VAC. The power inlet has a V-Lock mechanism for a secure connection.

Ethernet Connections

The Amplifier is connected to the network using one of the two Ethernet ports.

Fault Relay

The Amplifier’s fault relay will trigger whenever a fault occurs in the amplifier. This relay is actively kept closed by the Amplifier so it will trigger even if the entire amplifier loses power. The connection to external equipment should be made according to the external equipment’s requirements. When no faults are present in the amplifier, an electrical connection is established between the COM and NO terminals of the fault relay. When a fault is detected, or the amplifier loses power, this connection is removed and a connection between COM and NC is established.

Control Inputs

There are 2 inputs available. The inputs can be used in a convensional way, or they can be monitorted.

Conventional inputs have two states:
- Contact is Open
- Contact is Closed

Monitoring is done by connecting two resistors as close as possible to the external switch/relay, one in series and one in parallel. The resistor connected in series with the external switch/relay shall have a value of 1 kΩ, while the resistor connected in parallel shall be 2.2 kΩ.

Monitored Inputs have four states:
- Contact is Open
- Contact is Closed
- Short circuit (error)
- Open circuit (error)

Monitoring of inputs must be enabled in the web interface: Amplifier Settings > RCO/RCI Config > RCIs section.

Control Outputs

There are 2 outputs providing 24V DC signal.

Rating: 24 VDC, ±10%, 200 mA

Audio Input

There is one Line Input which can be used for background music or external alarms. See ENA amplifier in Bypass Mode

Nominal input level: 100 mVRMS – 1 VRMS

Loudspeaker Connections

The Amplifier has two options for loudspeaker connections: 70 volts or 100 volts.

Connected loudspeaker load should be less than the rated output power of the unit. Good practice is to maintain a minimum of 10%, or preferably 20% in reserve to accommodate future additional loudspeakers and avoid too much strain on the amplifier itself.

@@ Line 1: / Line 1: @@
 {{A}}
-This article describes the mounting and installation of the '''ENA2200''', '''ENA2400-AC''' amnd '''ENA2400-DC'''  amplifiers.
+This article describes the mounting and installation of the '''ENA2100-AC''' amplifier.
+== Installation ==
 === Overview - Front ===
-[[File:ENA2200 Overview Front.PNG|left|ENA2200]]
+[[File:ENA2100 AC front.png|left|650px|ENA2100-AC]]
 <br style="clear:both;" />
 {| border="1"
-| align="center" style="background:#ffd400;" width="50pt"| 1 || align="left"  | Mounting Flange || align="left"| The mounting flanges are used to mount the unit in 19” equipment racks
+| align="center" style="background:#ffd400;" width="50pt"| 1 || align="left"  | Mounting Flanges || align="left"| The mounting flanges are used to mount the unit in 19” equipment racks with 2HU in double configuration.
 |-
-| align="center" style="background:#ffd400;" width="50pt"| 2 || align="left"  | Ventilation Inlets || align="left"| The ventilation inlets should be kept free of obstacles and dust. Fans control the airflow based on internal temperature
+| align="center" style="background:#ffd400;" width="50pt"| 2 || align="left"  | Ventilation Inlets || align="left"| The ventilation inlets should be kept free of obstacles and dust. Fans control the airflow based on internal temperature.
 |-
-| align="center" style="background:#ffd400;" width="50pt"| 3 || align="left"  | Headphone Jack || align="left"| The headphone connection can be used to listen to the different audio streams in the Amplifier.
+| align="center" style="background:#ffd400;" width="50pt"| 3 || align="left"  | Status Indicators || align="left"| The status indicators are used to display the status of important parameters like power supply and faults. There is also a VU indicator for channel 1 and channel 2.
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 4 || align="left"  | Status Indicators || align="left"|  The status indicators are used to display the status of important parameters such as power supplies and faults
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 5 || align="left"  | LCD Display || align="left"| The LCD screen displays status and a graphical user interface
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 6 || align="left"  | Control Knob || align="left"| The control knob is used to select and execute menu items in the user interface. The knob can be rotated and pressed.
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 7 || align="left"  | Integrated Handle || align="left"| These integrated handles make it easy to maneuver the unit, without adding to the installation depth
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 8 || align="left"  | Ventilation Inlets || align="left"| The ventilation inlets should be kept free of obstacles and dust. Fans control the airflow based on internal temperature
 |-
+|}
-|}
-<br>
------------
 === Overview - Back ===
-[[File:ENA2200 Overview Back.PNG|left|ENA2200]]
+[[File:ENA2100 AC back.png|left|650px|ENA2100-AC]]
 <br style="clear:both;" />
 {| border="1"
-| align="center" style="background:#ffd400;" width="50pt"| 1 || align="left"  | Ethernet Ports || align="left"| Redundant Ethernet connections for audio and control data
+| align="center" style="background:#ffd400;" width="50pt"| 1 || align="left"  | Ethernet Ports || align="left"| Redundant Ethernet connections for audio and control data.
 |-
-| align="center" style="background:#ffd400;" width="50pt"| 2 || align="left"  | Serial Console || align="left"| Serial port connection for debugging and factory programming
+| align="center" style="background:#ffd400;" width="50pt"| 2 || align="left"  | Audio Input || align="left"| Line-in audio input for external audio sources. Nominal input level: 100 mVRMS – 1 VRMS
 |-
-| align="center" style="background:#ffd400;" width="50pt"| 3 || align="left"  | Control Inputs || align="left"| 6 configurable control inputs. Each input is activated by closing the loop between the two terminals
+| align="center" style="background:#ffd400;" width="50pt"| 3 || align="left"  | Control Inputs || align="left"| 2 configurable control inputs. Each input is activated by closing the loop between the two terminals.
 |-
-| align="center" style="background:#ffd400;" width="50pt"| 4 || align="left"  | Fault Relay Output || align="left"|  A switching relay (NO, NC & COM) kept in the active position between COM and NO as long as no faults are present in the device
+| align="center" style="background:#ffd400;" width="50pt"| 4 || align="left"  | Control Outputs || align="left"| 2 configurable control outputs. Each is made of a 24VDC signal. The 24VDC can source max 200mA and has overcurrent protection.
 |-
-| align="center" style="background:#ffd400;" width="50pt"| 5 || align="left"  | Control Outputs || align="left"| Six configurable control outputs. Each is made of a switching relay (NO, NC and COM) in parallel with a 24VDC signal. The 24VDC part of the control output can source max 200mA and has overcurrent protection
+| align="center" style="background:#ffd400;" width="50pt"| 5 || align="left"  | Fault Relay Output || align="left"| A switching relay (NO, NC & COM) kept in the active position between COM and NO as long as no faults are present in the device.
 |-
-| align="center" style="background:#ffd400;" width="50pt"| 6 || align="left"  | Audio Inputs || align="left"| Microphone and line-in audio inputs for microphones or external audio sources
+| align="center" style="background:#ffd400;" width="50pt"| 6 || align="left"  | Speaker Outputs || align="left"| 100 and 70 volts outputs per channel.
 |-
-| align="center" style="background:#ffd400;" width="50pt"| 7 || align="left"  | Speaker Outputs || align="left"| 100 and 70 volt outputs per channel. Each channel also has a low-power 8ohm output for single speakers. Each channel is equipped with inputs for connection to a hot-standby amplifier
+| align="center" style="background:#ffd400;" width="50pt"| 7 || align="left"  | Factory Reset Button || align="left"| To reset the amplifier to factory default settings: Insert a straightened paper clip or similar device into the hole to press the reset button and hold for 7 to 8 seconds while powering up the amplifier.
 |-
-| align="center" style="background:#ffd400;" width="50pt"| 8 || align="left"  | Ground Connection || align="left"| Ground connection for grounding of the unit. This is connected in parallel with the ground connection in the AC power inlet
+| align="center" style="background:#ffd400;" width="50pt"| 8 || align="left"  | AC Power Switch || align="left"| Power switch for AC power.
 |-
-| align="center" style="background:#ffd400;" width="50pt"| 9 || align="left"  | DC Power Inlet || align="left"| DC power inlet for 24 to 48 VDC (''Not available on the ENA2400-AC amplifier'')
+| align="center" style="background:#ffd400;" width="50pt"| 9 || align="left"  | AC Power Inlet || align="left"| AC power inlet for 110 to 230 VAC. The power inlet has a V-Lock mechanism for a secure connection.
 |-
-| align="center" style="background:#ffd400;" width="50pt"| 10 || align="left"  | AC Power Switch || align="left"| Power switch for AC power. This switch will not turn off the system controller if DC backup is connected (''Not available on the ENA2400-DC amplifier'')
+| align="center" style="background:#ffd400;" width="50pt"| 10 || align="left"  | Ground Connection || align="left"| Ground connection for grounding of the unit. This is connected in parallel with the ground connection in the AC power inlet.
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 11 || align="left"  | AC Power Inlet || align="left"| AC power inlet for 110 to 230 VAC. The power inlet has a V-Lock mechanism for a secure connection (''Not available on the ENA2400-DC amplifier'')
 |-
 |}
-<br>
------------
 === Placement and Stacking ===
@@ Line 62: / Line 45: @@
 === Mounting ===
-The amplifier’s  mechanical construction is rigid enough to be mounted using only the four holes in the mounting flange to secure it to the rack. It is however considered good practice to mount
+There are two kits available for mounting of the amplifier:
-support rails if the system is installed in a mobile environment.
+* Kit for mounting a single ENA2100-AC amplifier in a 19-inch rack.
+**ENA2100-AC single mounting, item Number: 1023532100
-=== Power Supply ===
+[[File:Singlemount.png|thumb|left|200px|Single Amplifier kit]]
-The Amplifier shall be connected to the equipment rack’s primary and secondary (emergency) source of power.
+<br style="clear:both;" />
-{{Note|The power input(s) are equipped with a lock, preventing the plug from falling out. Make sure that the plug is properly inserted, and that the lock is engaged }}
+* Kit for mounting two ENA2100-AC amplifiers together in a 19-inch rack.
+** ENA2100-AC double mounting, item Number: 1023532110
+[[File:Doublemount.PNG|left|thumb|100px|Double Amplifier kit]]
 <br style="clear:both;" />
-The requirements for the power rails are listed in the Technical Specifications for the amplifier. The cables used for the power shall be dimensioned accordingly to the voltage and current consumption of the amplifier.
-=== Grounding ===
+=== Power Supply ===
-It is always good practice to ground the cabinet of equipment installed in racks. This ensures safety and good EMC. If the unit is powered entirely through the DC power inlet, the ground connection is the only way to connect the Amplifier to ground. The ground connection of the Amplifier should be connected to the equipment rack’s ground strip using a ground wire of at least 0.75 mm² (AWG 19).
+The Amplifier is connected to the equipment rack’s mains power. AC power inlet for 110 to 230 VAC. The power inlet has a V-Lock mechanism for a secure connection.
-{{Note|If the Amplifier isn’t connected to ground, it will not be able to detect ground faults or short-circuits to ground }}
-<br style="clear:both;" />
 === Ethernet Connections ===
@@ Line 85: / Line 66: @@
 === Control Inputs ===
-There are 6 inputs available. The inputs can be used in a convensional way, or they can be monitorted.
+There are 2 inputs available. The inputs can be used in a convensional way, or they can be monitorted.
-[[File:Control_Inputs_5.jpg|thumb|left|700px|Control Input - Convensional use]]
-<br style="clear:both;" />
 * Conventional inputs have two states:
 ** Contact is '''Open'''
@@ Line 94: / Line 73: @@
 Monitoring is done by connecting two resistors as close as possible to the external switch/relay, one in series and one in parallel.
-[[File:Control_Inputs_6.jpg|thumb|left|700px|Control Input - Monitored]]
-<br style="clear:both;" />
 The resistor connected in series with the external switch/relay shall have a value of '''1 kΩ''', while the resistor connected in parallel shall be '''2.2 kΩ'''.
-Monitored Inputs have four states:
+*Monitored Inputs have four states:
-* Contact is Open
+** Contact is Open
-* Contact is Closed
+** Contact is Closed
-* Short circuit (error)
+** Short circuit (error)
-* Open circuit (error)
+** Open circuit (error)
 Monitoring of inputs must be enabled in the web interface: [[ENA_Configuration_-_AlphaCom_mode#RCO.2FRCI_Config|Amplifier Settings > RCO/RCI Config > RCIs]] section.
 === Control Outputs ===
-There are 6 NO/NC relays and 24V DC outputs.
+There are 2 outputs providing 24V DC signal.
+* Rating: 24 VDC, ±10%, 200 mA
-Relay Outputs:
+=== Audio Input ===
-* Max 24 VDC, 60 W
+There is one Line Input which can be used for background music or external alarms. See [[ENA amplifier in Bypass Mode]]
-* Max 250 VAC, 125 VA
+* Nominal input level: 100 mVRMS – 1 VRMS
-VDC Outputs:
-* 24 VDC, ±10%, 200 mA
-Cable diameter used is max 1 mm2 flexible.
-=== Audio Inputs ===
-The two audio inputs on the Amplifier can be used for background music, external alarms or local microphone. The audio inputs should be routed to terminal blocks in the equipment rack or local audio sources.
 === Loudspeaker Connections ===
-The Amplifier has three different options for loudspeaker connections: 8Ω, 70 volts and 100 volts. The 8Ω output is only intended for local monitoring of audio, and the power is therefore limited
+The Amplifier has two options for loudspeaker connections: 70 volts or 100 volts.
-compared to the 70 and 100 volt lines.
-[[File:ENA Speaker Connections.PNG|left|400px]]
-<br style="clear:both;" />
-{| border="1"
-| align="center" style="background:#ffd400;" width="50pt"| 1 || align="left"  | 70 volt connection
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 2 || align="left"  | 100 volt connection
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 3 || align="left"  | 8Ω connection
-|-
-|}
-<br>
-The loudspeaker outputs from the amplifier should be routed to terminal blocks in the equipment rack according to system requirements.
-[[Category: Public Address - Features and configuration]]
+{{note|Connected loudspeaker load should be less than the rated output power of the unit. Good practice is to maintain a minimum of 10%, or preferably 20% in reserve to accommodate future additional loudspeakers and avoid too much strain on the amplifier itself.}}
+[[Category: Public Address - Network amplifiers]]
--------
-== Installation ==
-=== Overview - Front ===
-[[File:ENA2100 AC front.png|left|850px|ENA2100-AC]]
-<br style="clear:both;" />
-{| border="1"
-| align="center" style="background:#ffd400;" width="50pt"| 1 || align="left"  | Mounting Flanges || align="left"| The mounting flanges are used to mount the unit in 19” equipment racks with 2HU in double configuration.
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 2 || align="left"  | Ventilation Inlets || align="left"| The ventilation inlets should be kept free of obstacles and dust. Fans control the airflow based on internal temperature.
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 3 || align="left"  | Status Indicators || align="left"| The status indicators are used to display the status of important parameters like power supply and faults. There is also a VU indicator for channel 1 and channel 2.
-|-
-|}
-<br>
------------
-=== Overview - Back ===
-[[File:ENA2100 AC back.png|left|850px|ENA2100-AC]]
-<br style="clear:both;" />
-{| border="1"
-| align="center" style="background:#ffd400;" width="50pt"| 1 || align="left"  | Ethernet Ports || align="left"| Redundant Ethernet connections for audio and control data.
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 2 || align="left"  | Audio Input || align="left"| Line-in audio input for external audio sources.
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 3 || align="left"  | Control Inputs || align="left"| 2 configurable control inputs. Each input is activated by closing the loop between the two terminals.
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 4 || align="left"  | Control Outputs || align="left"| 2 configurable control outputs. Each is made of a 24VDC signal. The 24VDC can source max 200mA and has overcurrent protection.
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 5 || align="left"  | Fault Relay Output || align="left"| A switching relay (NO, NC & COM) kept in the active position between COM and NO as long as no faults are present in the device.
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 6 || align="left"  | Speaker Outputs || align="left"| 100 and 70 volts outputs per channel.
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 7 || align="left"  | Factory Reset Button || align="left"| To reset the amplifier to factory default settings: Insert a straightened paper clip or similar device into the hole to press the reset button and hold for 7 to 8 seconds while powering up the amplifier.
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 8 || align="left"  | AC Power Switch || align="left"| Power switch for AC power.
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 9 || align="left"  | AC Power Inlet || align="left"| AC power inlet for 110 to 230 VAC. The power inlet has a V-Lock mechanism for a secure connection.
-|-
-| align="center" style="background:#ffd400;" width="50pt"| 10 || align="left"  | Ground Connection || align="left"| Ground connection for grounding of the unit. This is connected in parallel with the ground connection in the AC power inlet.
-|-
-|}