Redundancy

At present, only top-of-the-range servers are equipped with a dual electrical power supply. In their original form the majority of these types of equipment - including concentrators, switches, auto-routers, invoicing servers, SMS servers and middle-of-the range servers - are singleconnection, that is to say they have only one electrical input supply. With the Pulsar STS, every rack of critical
equipment can be connected to a redundant power supply.
Both sources (primary and secondary) are connected, in a very straightforward manner, to the STS in the base of the rack. The Pulsar STS then controls the
redundancy of this electrical power supply. If the primary source fails,
transfer to the secondary source is automatic and instantaneous.

Simple and cost-effective

Considering its advanced design, the price of the Pulsar STS is highly competitive compared with the 'dual power supply' options available from
suppliers of computer equipment. 1 U high, the unit can be installed very easily in the rack. Five LEDs indicate the status of the sources and the STS.

Reliability

Designed to provide redundancy as close as possible to the equipment, the Pulsar STS deploys a ‘break before make’ technology based on relays:
◗ in the event of a short-circuit, the Pulsar STS ensures that the fault cannot affect the alternative source, so that power continues to be supplied to the fault-free equipment,
◗ Power is transferred without overlap of the sources in order to prevent any node of reliability,
◗ Even if it suffers a fault, the Pulsar STS continues to supply power to the equipment from the remaining available source.