The new PowerLink is a compact, low-cost rackmount Remote Sequencer that provides timing and switching for up to six power control devices, turning them on and off in a preset sequence. The power-down sequence is opposite to the power-up sequence - the last device to be turned on will be the first turned off, etc. The delay interval between the turn-on or turn-off of each device and the next device in sequence is user-adjustable from 0.2 to 10 seconds, via an internal trimpot.
A PowerLink is intended to work with a group of relay-controlled power outlets such as Furman MiniPorts, to create a very flexible power control system that can expand to handle as many circuits carrying as much current as needed.
An on or off sequence can be initiated from the PowerLink itself, using the built-in locking key switch, or, if the key switch is set to enable Remote operation, by one or more momentary or maintained-action switches in distant locations.
The outputs of the PowerLink are low power relay contacts, accessible via rear-panel screw terminal strips. Outputs may be configured to be normally-closed or normally-open by positioning internal "suitcase" jumpers. All input and output commons are electrically isolated to avoid the creation of ground loops.
Power sequencing is needed whenever various kinds of equipment must be powered up or down in groups, rather than all simultaneously. In audio systems, sequenced powering is often necessary to allow turn-on transients from low level preamplifiers and processors to settle down before any power amps are turned on. This is because simultaneous powering can result in a loud, annoying, and potentially destructive "pop" reaching the speakers. Also, In any large system whose components present an inductive load to the AC line (including electric motors, power supplies, and power amplifiers of all kinds), sequenced powering can avoid excessive in rush currents that can cause circuit breakers to trip even though the steady-state currents are not excessive.
The user has complete control of each of the PowerLink's outputs. A three-position front panel switch for each control output allows that output to be included in the sequence, or permits overriding the sequence to switch that output on or off independently of the sequence timing. Indicator LED's light up to show when each output is in the "on" state.
While the PowerLink is ideal for controlling MiniPorts, it can also control Furman PowerPorts, PS-PRO or PS-8R Power Sequencers, ASD-120 Sequenced Power Distros, or any other devices that need to be switched when a particular time delay has elapsed. A PowerLink can even control one or more other remotely-located PowerLinks, providing complete power sequencing control for even the very largest systems.
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