The DCM-1 is an analogue audio multi-zone mixer. A digital control system, using an LCD display and a simple, minimal set of controls, replaces the relatively large number of switch and rotary controls found on conventional units, yet provides 'far greater flexibility of configuration than would be possible with such units'. Designed to provide a simple and elegant method of providing audio in a number of different zones, typically the various areas of shops, bars, hotels, schools, conference centres, offices, factories and even private residences, a single DCM-1 can provide a practical multi-zone audio system, but system flexibility and ease of operation will be greatly enhanced by the addition of optional remote controls and local input modules in the various zones, using standard CAT5 cabling with RJ45 connectors, perhaps installed in the building by other infrastructure installers. The DCM-1 has been accredited by Crestron which allows full integration with all Crestron control systems.
This is a highly sophisticated design, and a full description is not possible here. In order to appreciate the full potential of the system, it is recommended that the user manual is downloaded from www.cloud.co.uk. What follows is an overview.
DCM-1 - Digitally Controlled Mixer
The DCM-1 is the system 'core' and all the primary audio input sources, zone amplifier inputs, paging microphones and all remote controls are connected directly to it. The DCM-1 mainframe should ideally be rack-mounted along with the audio sources and zone amplifiers, in a central equipment area. Local, per-zone, remote control of music source and level can be simply provided in as many of the zones as necessary.
The mixer has been designed to allow easy integration with microphone and line external inputs, paging microphones and fire alarm systems. Once set up, the DCM-1 allows zones to be combined, and separated, simply, as space utilisation of the building demands. An important aspect of the DCM-1 design is that it is completely self-contained, and requires no computer interface of any kind, either to configure or control it.
Up to eight line-level sources such as CD players, audio jukeboxes, PC sound cards, radio or TV tuners can be connected. Both Cloud CDPM Series paging microphones and third-party paging systems may also be connected directly. Each of the eight outputs is intended to supply audio to a separate zone, two of which are available in stereo. Any one source can be routed to any zone, and the music level in each zone can be adjusted independently.
The DCM-1 has the following inputs: One analogue paging microphone input with contact- closure zone selection. An RJ45 interface for CDPM Series digital paging microphones, four dedicated ports for optional remote line input modules and four for optional remote microphone input modules, eight stereo line inputs, one balanced. There are eight zone line outputs, two stereo and 6 mono, all balanced. Four RJ45 ports are provided for multiple optional CDR-1 remote-control panels, in any wiring configuration, which provide local control of source, level, EQ and group enable.
The front panel has 2x 16-character LCD dot-matrix display, similar to the one used on the CDR-1, which is used, in conjunction with push buttons, to set up and operate the mixer. LEDs indicate remote access. Microphone paging to all zones is provided, with fully programmable override logic. Inputs, zones and groups can be named, four zone groups may be defined and any line input may have priority in any zone; operation is also configurable per-zone. A key-protected 'Installer' mode on both the DCM-1 and CDR-1 remote panels prevents user access to configuration menus.
An external music mute input provides for interfacing with emergency systems; any input, microphone or line, may be assigned as emergency input, overriding music mute. An RS232 interface is available for control by third-party control systems, Bose EQ cards may be fitted, multiple DCM-1s may be cascaded for larger systems.
DCM1e - Digitally Controlled Mixer with Ethernet
The DCM1e is a recently introduced Ethernet version of the popular DCM1 Digital Control Zone Mixer. The addition of an Ethernet port on the rear panel of the new DCM1e allows its own on-board web-server to be connected via an RJ-45 socket to an independent or existing switch or router. This feature means the new DCM1e can be configured and controlled remotely by any mobile device or PC connected to the same network.
Using the web browser of any mobile device, users have 'limited installer defined' controls via simple and intuitive interface pages. 'Power' users are provided with additional installer-defined controls, whilst installers have administrator status via a password protected 'Configuration Options' screen.
Multiple devices can connect and operate the DCM-1e concurrently, providing complete flexibility and control for up to eight separate zones, if required.
CDR-1 Remote Control Unit
This is specifically designed for use with the DCM-1. CDR-1s may be fitted to standard electrical back boxes in whatever location is convenient in each zone. Different versions are offered for flush and surface mounting. The CDR-1 provides the user with local source-selection and level-control for the zone in which it is fitted. It additionally allows selection of any zone groups to which the zone has been assigned, which gives simple and complete control over audio in multiple areas which may be split or joined in different ways at different times. Once enabled on the DCM-1 and a local key-code entered, zone EQ is also adjustable from the CDR-1, allowing audio optimisation from within the zone itself. An 'Installer' mode permits zone assignment and adjustment of other installation parameters.
Any zone may have one CDR-1, more than one, or none at all. The DCM-1 can support up to 100 CDR-1s. CDR-1s are interconnected with just one standard, four-pair, Cat5, UTP cable, see Cat5 U/UTP; units may be 'daisy-chained' at will and/or connected individually back to the four CDR ports of the DCM-1, using almost any wiring topology convenient for the installation. Up to eight CDR-1s may be powered directly from a DCM-1, via the Cat5 connections. Systems requiring more than eight will need additional power supplies, whose location and system connection will depend on the topology and cable lengths involved.
Available in four options (black or white for UK or EU), the ME-1 remote input plate provides either one or two balanced microphone inputs - two on the ME-1B and ME-1W, one on the ME-1MB and ME-1MW. They is useful in multi-purpose areas where microphones are needed occasionally. There are rotary microphone level and screw-driver operated LF and HF EQ controls per input. It connects to one of the four dedicated microphone inputs of the DCM-1 with a single, four-pair, screened, Cat5 cable, see Cat5 F/UTP. In the case of the ME-1B and ME-1W the two inputs are mixed together at the plate, and the summed signal applied to the DCM-1. Inputs are balanced 3-pin female XLR connectors. Phantom power at 12V is available, set by a jumper accessible from the rear of the plate.
ME-1B and ME-1W are designed for use in the UK with dimensions of 145 x 85 x 33mm (WxHxD), whilst the ME-1MB and ME-1MW are designed for use in the EU with dimensions of 100 x 50 x 33mm (WxHxD). Note: Depth quoted is from plate to rear, not including controls on face plate. Total depth including protruding volume control is 50mm.
Like the ME-1 there are four versions of the LE-1 input plate. They provide connection for an unbalanced, stereo line-level audio source, such as a portable music centre, laptop, radiomic receiver or similar. They connect to one of the extension ports of the DCM-1 with a single, four-pair, screened, Cat5 cable, see Cat5 F/UTP. Multiple LE-1s may be 'daisy-chained' together to provide input points at different locations in the same zone. Signals applied to plates wired in this way will be summed together. An internal gating-circuit on each plate automatically 'disconnects' any chained plates which are not in use, to minimise noise contribution. The inputs are electronically buffered to minimise noise and interference pickup, and input gain is locally adjustable with a preset control. Both dual RCA (phono) sockets for sources with a nominal level of 0dB, and a 3.5mm stereo jack socket for sources with a higher input level of around +8dB are provided; +/-12dB of gain trim adjustment is available on the faceplate. Once connected, any audio connected to an LE-1 is treated as any other source and can be routed to any zone in the same manner.
LE-1B and LE-1W are designed for use in the UK with dimensions of 145 x 85 x 30mm (WxHxD), whilst the LE-1MB and LE-1MW are designed for use in the EU with dimensions of 100 x 50 x 30mm (WxHxD). Note: Depth quoted is from plate to rear, not including protruding input connectors on face plate.
BE-1B, BE-1W, BE-1MB, BE-1MW Remote Input Plate - Line level
Similar to the LE-1, the BE-1 provides a balanced, stereo line-level input, for use with professional audio equipment such as mixing consoles, or broadcast equipment. Like the LE-1, it connects to one of the DCM-1 extension ports with a single, four-pair, screened, Cat5 cable, see Cat5 F/UTP. Multiple BE-1s may be 'daisy-chained' in the same way as the LE-1s and the two types of plate may be intermixed. Two 3-pin female XLR connectors are fitted. Once connected, any audio connected to the BE-1 is treated as any other source and can be routed to any zone in the same manner.
LE-1B and LE-1W are designed for use in the UK with dimensions of 145 x 85 x 33mm (WxHxD), whilst the LE-1MB and LE-1MW are designed for use in the EU with dimensions of 100 x 50 x 33mm (WxHxD).
These consoles connect, singly or in multiples, directly to the DCM-1, again using unscreened Cat5 cable, to provide paging to separate zones. Please see Cloud Digital Paging Microphones.