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GREEN-GO DIGITAL INTERCOM SYSTEM

Green-GO is a cost-effective, multi-award winning, digital intercom over Ethernet, that uses a unique design concept to create complex communication systems suitable for major live events, multi-function performance venues, churches, high-end rental facilities and broadcasters. It is also suitable for building simple, expandable, systems for projects with less stringent technical requirements or tighter budgets. With this system, Green-Go have produced the first affordable way to enter the world of digital intercoms, with its many benefits.

The system is designed to operate on any 100Mbit Ethernet network without interfering with other data protocols co-existing on the system and will perform seamlessly, even when data traffic-levels are high. For network cabling, standard RJ45 connectors may be used, or for greater reliability, the more robust Neutrik etherCON connectors. System components that are not powered by their own external PSU, are driven by DC voltage derived from 'Power over Ethernet' (PoE). Audio quality is high, and, being digital, will not deteriorate over distance. Sampling rate is 16kHz with 16-bit dynamic range. System latency is low at only 12 milliseconds, so no lip-sync problems!

Green-GO differs fundamentally from other current intercom designs which use a central matrix or routing-engine at their core. Instead, each outstation holds all routing data, system set-up and user preferences. Operating without a central matrix eliminates the possibility of a catastrophic single component failure. In the event of a problem, a faulty device can be easily removed and its replacement can clone all system configurations from a neighbouring device on introduction to the network.

Terminology - Circuits, channels, groups and rings

Different terms are used, by the various manufacturers of intercom systems, to describe similar configurations. In this description, a 'channel' is used to describe a collection of user stations linked together by wire or wirelessly to allow users to communicate with each other. This is the same as a group, ring or circuit when used in the same sense.

A basic system can consist of just two beltpacks and, if Power over Ethernet(PoE) is not available locally, a PoE switch from almost any manufacturer. The intercom system can be expanded to provide up to 250 intercom channels and a total of 3000 individual users.

Each station, including beltpacks, has an identical software engine programmed with 32 intercom channels. These can be programmed as a group of users, or as a single user for private conversations. Selecting a user on any station will extract that person's individual set-up configuration from the configuration software that is common to all other devices on the system.

Basic system parameters, including user configuration, can be set for each outstation, using the device's multi-function rotary-encoder control. Overall system configuration should be set using a laptop running Windows or MAC software downloaded from the Green-GO website. The laptop will facilitate naming user groups and individual operators and sending text messages via a device's LCD display buttons, to selected users.

Programme audio such as show-relay from the stage, or a sound track from a video, can be injected into or extracted from the system using dedicated analogue line-in or line-out ports on multi-channel stations or dedicated interface units.

The XLR4 headset connectors are compatible with headsets from Tecpro, Beyer and many other brands. If the microphone type is an electret, a switchable bias voltage is available. The useful Cue Light feature makes use of the multi-coloured LCD displays on outstations. 'Attention', 'Acknowledge' and 'Go' signals are presented as different colours.

An interesting feature of the Green-GO system is the use of General Purpose Input Output (GPIO) connections. These are available via 9-pin D-sub connectors on multi-channel stations and analogue interface devices, providing opening and closing contacts for external control interfacing.

GGO-BPX Wired Beltpack

Main points:

  • Full duplex, high quality audio, low latency
  • 2, 3 and 4 channel operation, selectable
  • Select from 32 channel options held in memory
  • Powerful headphone amplifier
  • Tough, lightweight, weather-resistant ABS case
  • Powered by PoE
  • Comprehensive feature set

Green-GO BPX beltpacks share most features with their WBPX wireless siblings, making switching between wired and wireless devices easy, with no need to learn additional operating procedures.

The tough, lightweight ABS case is weather resistant, making it suitable for sports and other outside events. A rear mounted belt clip provides a solid fixing to clothing.

To operate, BPX beltpacks require PoE (Power over Ethernet). A Neutrik EtherCON connector accepts either EtherCON or RJ45 connectors. EtherCON is recommended as it provides a solid fixing together with strain relief for the cable end.

BPX beltpacks offer 2, 3 or 4 channel operation. In common with other green-GO user stations, they can store within the memory of the device a mixture of up to 32 groups or users which can be swiftly assigned to any of the four channels. Unassigned channels can still be accessed using the 'extended channels' function.

Four push buttons provide latching and non-latching microphone switching. The bright, multi-colour Oled display shows each channel's status together with 'Call Alerts', 'Cue' prompts and other information. The brightness of the display may be adjusted to suit the environment.

Two dual-function rotary-encoder wheels, positioned on either side of the beltpack, allow easy operation by left and right handed users. Each encoder wheel can be programmed to offer main volume, side tone, or programme audio level.

For clearer monitoring, the audio level of each of the four intercom channels may be set locally to ensure each channel can be heard at a sensible level. Overall audio level can be adjusted to suit.

Basic beltpack information is displayed on the Oled screen when either of the encoder wheels is pulled upwards until it clicks. Lifting both wheels upwards accesses the menu for editing, where a wide range of options can be set. These include channel selection (2, 3 or 4), channel assign, comprehensive audio settings, set 'User', system configuration.

DECT Wireless System

The Green-GO DECT (Digital Enhanced Cordless Telecommunications) wireless devices operate in the 1.9GHz band which is license-free in Europe, Japan and the USA. Operation is full duplex, with clear audio quality, low latency and robust RF coverage. Call-alert and remote-mic-kill control signals are transmitted between Green-GO wired and wireless devices.

With a similar feature set to their wired counterparts, DECT beltpacks can access the same 32 channels, 250 groups, and 3000 users that wired user stations access.

DECT transmission power and frequency bands: 23 dBm, 1881MHz - 1897MHz, EU.

GGO-WBPX Beltpack, DECT

Main points:

  • DECT 1.9 GHz license-free wireless intercom
  • Full duplex, high audio quality, low latency
  • 2, 3 and 4 channel operation, selectable
  • Select from 32 channel options held in memory
  • RF coverage, 50m - 300m depending on environment
  • Increase RF range by adding remote antennas
  • Rechargeable Li-Ion battery, removable, quick release
  • Optional 6-way battery charger, mains powered, 1U
  • Register 4 beltpacks to single antenna
  • Register 4 antennas to single beltpack
  • Tough, lightweight ABS weather resistant case
  • Comprehensive feature set

Green-GO WBPX DECT wireless beltpacks share most features with their BPX wired siblings, making switching between wired and wireless devices easy, with no need to learn additional operating systems.

The tough, lightweight ABS case is weather resistant, making it suitable for sports and other outside events. A rear mounted belt clip provides a solid fix to clothing.

RF range is typically 50m - 300m depending on the local environment. For best results, it is good practice to place antennas at height for best 'line-of-sight'. RF coverage can be increased through the use of remote antennas. Placing a remote antenna behind a thick brick wall will solve the line-of-sight issue.

Up to four beltpacks can register to a single WAA antenna. Each beltpack can register with up to four WAA antennas.

WBPX beltpacks are powered by a single, quick release, Li-Ion battery which provides around six hours of continuous use from a full charge. The battery may be charged within the beltpack or in an optional GGO-BC6 6-way charger, 1U. Spare batteries are available, allowing hot swapping.

WBPX beltpacks offer 2, 3 or 4 channel operation. In common with other green-GO user stations, they can store within the memory of the device a mixture of up to 32 groups or users which can be swiftly assigned to any of the four channels. Unassigned channels can still be accessed using the 'extended channels' function.

With a frequency response extending to 7kHz, audio quality is clear, with low noise and low latency, eliminating lip-sync problems.

Four push buttons provide latching and non-latching microphone switching. The bright, multi-colour Oled display shows each channel's status together with 'Call Alerts','Cue' prompts and other information. The brightness of the display may be adjusted to suit the environment.

Two dual-function rotary-encoder wheels, positioned on either side of the beltpack, allow easy operation by left and right handed users. Each encoder wheel can be programmed to offer main volume, side tone, or programme audio level.

For clearer monitoring, the audio level of each of the four intercom channels may be set locally to ensure each channel can be heard at a sensible level. Overall audio level can be adjusted to suit.

Basic beltpack information is displayed on the Oled screen when either of the encoder wheels is pulled upwards until it clicks. Lifting both wheels upwards accesses the menu for editing, where a wide range of options can be set. These include channel selection (2, 3 or 4), channel assign, comprehensive audio settings, set 'User', antenna pairing and system configuration.

'Programme' audio level may be adjusted locally and can be set to dim or mute when intercom channels are active.

Most popular brands of headset are suitable for use with WBPX beltpacks. Tecpro single and dual muff headsets offer a good match, combining clear, intelligible audio with comfort and ruggedness. Switchable DC bias voltage is available for headsets with electret microphones.

The physical design combined with a comprehensive feature set makes this wireless beltpack eminently suitable for many applications including broadcast, theatre, music and sport.

Dimensions: 120 x 98 x 47mm. Weight: 342g.

GGO-NRGP Battery

Offered as a spare for the WBPX Wireless Beltpack, this is a quick release type, for 'hot swapping'.

Battery life: Approximately 6 hours continuous use from fully charged. Charge time: Approximately 5 hours from fully discharged.

Dimensions: 73 x 38 x 14mm. Weight: 46g.

GGO-BC6 Battery Charger, 6-Way, 1U

The Green-GO BC6 is a 1U rackmounting, 6-way battery charger. Individual two colour LEDs indicate whether each battery is charging or is fully charged. Power is provided by an external plug-top power supply.

For use with Green-GO NRGP batteries only.

Dimensions: 1U x 150mm deep. Weight: 2.25kg.

GGO-WAA Antenna, DECT

Main points:

  • DECT 1.9 GHz license-free wireless intercom
  • RF coverage, 50m - 300m depending on environment
  • Increase RF range by adding remote antennas
  • Register up to four beltpacks to a single antenna
  • Register up to four antennas to a single beltpack
  • WAA antennas communicate with other green-GO devices on a data network
  • Power over Ethernet is required
  • In stand-alone mode, antennas are powered via mini USB
  • Single LED indicates power, network communication and device 'pairing'
  • Tough, lightweight, ABS weather resistant case
  • Right angled mounting bracket supplied

WAA antennas have a lightweight, weather resistant, ABS case, making them suitable for sports and other outside events. A right angled mounting bracket makes it simple to fit to microphone stands with a 3/8 inch thread.

RF range is typically 50m - 300m depending on the local environment. For best results, it is good practice to place antennas at height for best 'line-of-sight'. RF coverage can be increased through the addition of remote antennas. Placing a remote antenna behind a thick brick wall will solve the 'line-of-sight' issue.

Up to four WBPX beltpacks can register to a single WAA antenna. Each beltpack can register with up to four WAA antennas.

Antennas communicate with other Green-GO devices via a shared data network. They require Power over Ethernet to operate.

The single LED indicates power available, communications established and beltpack pairing.

WAA antenna firmware is updated via the data network.

Dimensions: 120 x 98 x 42mm, antenna; 60 x 30mm (mounting bracket). Weight: 192g.

Multi-channel Desktop Stations

Multi-channel desktop stations have a compact footprint and are available in 8, 16, 24 and 32 channel versions. They provide a clear overview of many channels and offer a simple interface to listen and talk to selected channels. This makes the system suitable for complex live event and broadcast applications where several intercom channels need to be simultaneously monitored while conversing with one or more selected channels. Each channel identification is displayed on an LCD strip. The audio level of each circuit can be adjusted for best intelligibility.

Full duplex communication is by headset or the in-built loudspeaker and optional gooseneck microphone. Intercom channels are presented in banks of four and each channel is controlled by two rows of four switches. The upper row enables conversations with other stations on the selected intercom channel. These switches offer latching and non-latching modes, depending on the duration for which they are pressed. Each mic switch illuminates green, orange or red (blinking) to indicate talk to the channel, talkback from the channel, or 'Call' signal received. The lower row of switches operate in conjunction with the three 'Soft' keys and four 'Mode Select' keys in the Control Section to offer three functions; 'Listen' and 'Remote Mic Kill', 'Call' (to a group or individual) and 'Cue' modes. For improved listening, the 'Isolate' function will mute all intercom circuits that are not in 'Talk' mode, so unnecessary distractions are removed until the conversation is finished.

Multi-channel desktop stations may be powered from PoE (Power over Ethernet) or an external 12V DC power supply. The rear panel offers two Ethernet ports with built-in Ethernet switch. Port 2 can be used for power via PoE if no external 12V supply is available. This leaves Port 1 available for a laptop which may be connected for system set-up.

Line-in and line-out facilities are presented on 3-pin XLR connectors. They allow analogue audio to be injected into and extracted from the intercom system. A set of General Purpose Input Output (GPIO) connections are available on a D-sub 9-pin connector, providing opening and closing contacts to provide external control interfacing.

Rack-mounting Station

The 12-channel rackmount station has similar features to the desktop stations, but is designed to fit in 2U of a 19 inch rack. The front panel can be angled outwards to make operation easier.

Wallmount Stations

Two wall-mounting outstations, based on the beltpack, are available. The external Ethernet connection is relocated inside the case and GPIO (2x in and 2x out) connections are available internally using screw terminals. The size of the LCD display is larger than that of the beltpack. Two versions are available; a speaker and microphone combination or a headset only alternative. A non-audio version is also available for information/cue-light duties.

Analogue - Digital Interfaces 2-wire and 4-wire

These audio interfaces are for linking Green-GO intercom groups to external analogue intercom systems or other audio equipment.

GGO-2W Interface - 2-wire

This 2-wire version is for linking to analogue party-line systems like Tecpro, Clear-Com and RTS-TW. It has two Ethernet ports, programmable analogue input and output and a GPIO port. Powering is via PoE (from LAN port two) or from an external 12V DC supply. An LCD display and rotary encoder allow all settings to be viewed, selected and modified. This allows comprehensive control together with routing to and from the intercom.

GGO-4W interface - 4-wire

The 4-wire model will integrate Green-GO with analogue matrix or wireless intercom systems, it offers two Ethernet ports, two programmable analogue inputs and outputs and a GPIO port. Powering is via PoE (from LAN port two) or from an external 12V DC supply. An LCD display and rotary encoder allow all settings to be viewed, selected and modified. This allows comprehensive control together with routing to and from the intercom.

GGO-Interface - 2 and 4-wire

The 1U rack-mounting GGO-Interface is a useful combination of two channels of 4-wire to 4-wire together with a single channel of 2-wire to 4-wire.

The 4-wire interface offers two channels of analogue in and out. Uses include linking to an external matrix intercom, injecting program audio on to the Green-GO network and sending analogue audio to an external PA system or show relay.

The 2-wire interface offers a single channel of robust interfacing to popular partyline systems including Clear-Com, RTS-TW and Tecpro.

Two GPIO connections are also included, providing opening or closing contacts to trigger selected functions. The GGO-Interface is powered by Power over Ethernet or optional 12V power supply. Dimensions: 1U x 150mm deep. Weight: 2.3kg.

GGO-BridgeX Network Interface

Main points:

  • Connect events globally via internet
  • Four independent streams of bridge interface
  • Connect to four remote sites
  • No loss of speech clarity
  • Pass 'Call' alert signalling between sites
  • Active and passive bridge modes
  • Compact 1U rackmount format

With each bridge interface stream, the local Green-GO intercom will connect to one remote Green-GO network either via the internet or a private network. Audio and call signals will be transported from one Green-GO network to the other. This creates a single intercom group spread over two sites. The GGO-BridgeX can handle 4 connections - one for each port. For every connection there is an 'Active' and a 'Passive' member. The 'Active' always connects to the 'Passive' member.

The interface offers two Ethernet ports, two programmable analogue inputs and outputs and a GPIO port. Powering is via PoE (via LAN port two) or from an external 12V DC supply. An LCD display and rotary encoder allow all settings to be viewed, selected and modified. This allows comprehensive control together with routing to and from the intercom.

All bridge devices should be assigned fixed IP addresses. These should be chosen from the same range of IP addresses as is used on the local network, but outside the range of any addresses offered by the router or a DHCP server. Care should be taken to avoid using an IP address that is already in use. Firewalls between the local network and the wide area network or internet should be set to allow the traffic to pass between local and remote networks.

Once communication is established between the remote and local networks, the new common group for the two sites should perform like any other intercom group and there should be no loss of audio quality at either site. A small degree of latency may be introduced by the internet, depending on prevailing conditions.

Dimensions: 1U x 150mm deep. Weight: 2.3kg.

GGO-SW5 Ethernet Switch - 4x POE ports, 1x unpowered port

The GGO-SW5 switch will supply power over ethernet (PoE) to four Green-GO intercom devices. The single unpowered switch port provides data but no PoE, making it useful for linking to an external 100 Mbit/s data network or to a computer. Neutrik EtherCON connectors offer a solid, reliable connection.

Supplied in free-standing format. It may be mounted in a 19 inch rack using the optional 26-767 GGO-RMDT Rack Mounting brackets.

GGO-SW81 Ethernet Switch - 8x POE ports, 1x unpowered port

The compact GGO-SW81 switch will supply power over ethernet (PoE) to eight Green-GO intercom devices. The single unpowered switch port provides data but no PoE, making it useful for linking to an external 100 Mbit/s data network or to a computer. Neutrik EtherCON connectors offer a solid, reliable connection.

The device may be mounted in a 19 inch rack, taking up 1U of space.

Software

Green-GO configuration software is used to create and modify system set-up. It defines all groups, users channels and global settings and is available as a free Windows or Mac download from the Green-GO website.

Further details

It is impossible to cover every feature of a complex system like Green-GO digital intercom in a condensed product overview. For further details, the Systems Manual can be downloaded from the Green-GO website www.greengodigital.com.

  Description Price (£) Add to basket
GREEN-GO GGO-BPX DIGITAL BELTPACK 4-channel, ethercon RJ45, black Black Stock code:
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£637.00
GREEN-GO GGO-WBPX DECT WIRELESS BELTPACK 4-channel, with PSU, black Black Stock code:
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£1310.00
GREEN-GO GGO-NRGP BATTERY For WBPX wireless beltpack, Li-Ion, 1800mAh, rechargeable   Stock code:
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£43.63
GREEN-GO GGO-BC6 BATTERY CHARGER 6-way, rackmount   Stock code:
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£534.00
GREEN-GO GGO-WAA DECT Wireless Antenna, inc mounting bracket, etherCON RJ45   Stock code:
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£1310.00
GREEN-GO MCD8 DIGITAL DESK STATION 8-channel, ethercon RJ45 connection   Stock code:
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£1810.00
GREEN-GO MCD16 DIGITAL DESK STATION 16-channel, ethercon RJ45 connection   Stock code:
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£2180.00
GREEN-GO MCD24 DIGITAL DESK STATION 24-channel, ethercon RJ45 connection   Stock code:
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£2560.00
GREEN-GO MCD32 DIGITAL DESK STATION 32-channel, ethercon RJ45 connection   Stock code:
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£2940.00
GREEN-GO MCR12 DIGITAL LOUDSPEAKER STATION 12-channel, rackmount, ethercon RJ45 connection   Stock code:
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£1990.00
GREEN-GO GWP DIGITAL CUELIGHT PANEL Wall mounting, ethercon RJ45 connection   Stock code:
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£433.90
GREEN-GO GWP-HS DIGITAL HEADSET STATION Dual channel, wall mounting, etherCON RJ45 connection   Stock code:
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£639.00
GREEN-GO GWP-SP DIGITAL LOUDSPEAKER STATION Dual channel, wall mounting, etherCON RJ45 connection   Stock code:
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£693.00
GREEN-GO GGO-2W DIGITAL INTERFACE 4-wire to 2-wire (analogue partyline), 2-channel   Stock code:
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£693.00
GREEN-GO GGO-4W DIGITAL INTERFACE 4-wire to 4-wire (analogue partyline), 2-channel   Stock code:
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£693.00
GREEN-GO GGO-INTERFACEX DIGITAL-ANALOGUE INTERFACE 2x 4-wire, 1x 2-wire,1U   Stock code:
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£1220.00
GREEN-GO GGBI DIGITAL BRIDGE INTERFACE   Stock code:
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£1270.00
GREEN-GO GGO-BRIDGEX NETWORK BRIDGE 4x interface streams, 1U   Stock code:
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£1870.00
GREEN-GO GGO-SW5 POE ETHERNET SWITCH 5 ports, ethercon connection   Stock code:
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£578.00
GREEN-GO GGO-SW81 ETHERNET SWITCH 8 x PoE ports, 1 x unpowered port, 1U rackmount, V4   Stock code:
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£1150.00
GREEN-GO PSU12V POWER SUPPLY For all MCD/MCR, 12V 1.8A DC, DC plug, 5.5mm   Stock code:
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£54.01
GREEN-GO GGO-RMDT RACK MOUNTING BRACKETS 19-inch, (pair)   Stock code:
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£28.36
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