The Universal Interface units decode channels of serial digital information from a Pulsar Masterpiece for example, in DMX, PMX/RS232 or MIDI format, into channels of analogue 0-10V. It needs no mains connection as it receives its low voltage supply from the Pulsar dimming or switching packs which it would normally be used to control. These power packs then control lighting effects such as ordinary tungsten, neon, pinspots, motorised effects, etc.

The units are compact and inexpensive making the Universal Interface attractive for lighting specialists who need flexible equipment able to cope with the requirements of different lighting designers.

• Digital input conversion to 0-10V analogue outputs for linking to standard dimmers, switch packs, strobes, etc

• Low voltage supply, needs no mains connection, receives its low voltage supply from Pulsar power packs or power supply

• Link to any lighting control desk which gives DMX digital output

• Link to any Pulsar controller which supplies PMX (Pulsar MultipleX)

• Link to any computer controller which supplies RS232 9600 baud

• Link to any standard MIDI output device, using note and velocity or continuous controller data

• Standard 19" 1U rack mounting format

• XLR 5 pin-in and thru connectors for Pulsar MultipleX (RS232) and DMX protocols

• DIN 5 pin-in and thru for MIDI protocols

• DIN 8 pin female 0-10V output to devices or power packs

• 0-10V output channels short-circuit protected and diode isolated

• Status indicators show:

Two sets of dual-in-line selector switches are fitted. One sets the receiving start address for DMX, PMX/RS232 or MIDI while the second selects the MIDI channel and other MIDI options. A test routine can also be selected using one of the DIL switches.

The MIDI capability offers the possibility for musicians to interface with and program the lighting equipment used in sequenced performances. The unit can be set to respond to velocity information to set channel levels, as well as ‘note-off’ information, so the unit can effectively work in ‘latch’ or ‘flash’ mode. Universal Interfaces can be set to respond to different start addresses, allowing a large lighting rig to be controlled with a number of Interfaces.

• 6 LEDs are fitted with the following functions:

• POWER ON shows that power is being received from the dimmer or switching packs or power supply

• INPUT SIGNAL 3 LEDs show which data format has been detected

• RECEIVING DATA shows that data is reaching the Interface

• DATA ERROR shows that the Interface did not recognise the last received information.

The Interface decodes 8 bit binary data and so provides 256 levels between 0-10V. The outputs are via isolating diodes, so they may feed the same dimmer or switching packs as other controllers – the highest taking priority.