News

Bryant Broadcast Introduces a Major New Range of 14-Way AC Power Distribution Units (12/5/2005)

Bryant Broadcast has introduced a major new range of 14-way AC power distribution units with a 20A PowerCon inlet and 14 x 10A IEC outlets packaged in the footprint of a standard 10- or 12-outlet 1U rack mount mains unit.

The units are built to the exacting wiring/earthing standards required by the BBC and do not use PCBs to carry mains voltage.

Each IEC outlet is individually fused and has a corresponding single, bicolour, long-life LED indicator on the front panel, which indicates green to display mains present, but which changes to red in the case of a monitored overload fuse failing.

Claimed to be unbeatable for space and price, Bryant Broadcast offer these units, complete with heavy duty cable tie bar and the company's standard designation strip with snap-on cover at the cost of a normal PDU 112, 12-way mains distribution units (just GBP 139.24 each).

Units are also available with power-on red neon indicators instead of illuminated on/off switches for secure applications.

Also available for the 'smart system' is a 1U, 12 IEC output, sequential mains distribution unit with comprehensive programming capabilities via RS422/485 multidrop interface.

The unit is suitable for use with existing automation control systems, or Bryant's proprietary multi-unit control/monitoring software.

The units are supplied configured as a standard sequential mains unit with GPI start and "cascade out" connections.

The inter relay timing is set at 500ms.

However, the unit can be reprogrammed, using the supplied Windows software, to change the "sequence on" order, the "sequence off" order and the inter relay timings of both sequence on and off independently.

Alternatively the sequence off can be configured with sophisticated load shedding capabilities.

For example, triggered by an UPS power failure relay contact, selected outputs can be turned off immediately, followed by other outputs at predetermined intervals for as long as the power loss persists.

As soon as the main power comes back, the unit will re-sequence the outputs back on.

Additionally the cascade out contact can be reconfigured as an emergency dump input, which could be connected to a low battery relay contact on the UPS.

Where more than one unit is required, they can be "daisy chained" together using the RS422/485 multidrop interface, up to a maximum of 255 units.

These can be controlled using Bryant Broadcast's sophisticated WinPower Lite control and monitoring software.

Alternatively, users CAN interface them to their existing automation control software, BNCS/Colledia, Pharos Pilot/Exception etc. by using the appropriate drivers.

The full serial protocol is available for developers.

www.bryant-broadcast.co.uk