Enclosures handle railway applications

Chassis Plans is providing a semi-custom 4U enclosure designed with shock isolation for an operating vibration specification of 5 to 500Hz at 1G and 10G of operational shock.

Chassis Plans has begun shipping the Long Island Rail Road audio/visual paging systems.

The contract calls for over 100 systems.

The first deliveries of this modified COTS/Industrial 4U Chassis occurred two weeks after receipt of the contract from Long Island Rail Road.

This period included engineering the modifications requested by LIRR.

The Cots/Industrial 4U Chassis provides for mounting a long life industrial ATX motherboard, industrial power supply, internal hard drives and three drive bays.

The drives, including the externally accessible drives, are mounted on a fully shock isolated sub-carrier to protect the drives in the harsh environments found in the communication centres adjacent to the tracks.

Enhanced card retention tailored to the plug-in card configuration for this system assures the cards stay fully seated during all shock and vibration events.

The front door uses captive thumb screws and a key lock to firmly seat the door in the milled front panel for dirt exclusion and EMI control.

An air filter in the door protects the system from the high dirt loads in the subway environment.

Two high-flow 80mm fans provide good system cooling as shown in thermal cycle testing.

Chassis Plans is providing a semi-custom 4U enclosure designed with shock isolation for an operating vibration specification of 5 to 500Hz at 1G and 10G of operational shock.

Each system provides a 3.2GHz P4 with 2Gbyte of Ram, an 8Gbyte solid state hard drive, video card, digital I/O card, two isolated RS422 serial ports, Watch Dog Timer, as well as a high-end audio processor for station paging and is configured with Windows XP.

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