ATTO Technology 3400 operation manual Setting up the FC Rack System

Input voltage:

4 Setting up the FC Rack System

The ATTO FC Rack System is a configurable 19-inch rack system with two bays designed to house the ATTO FibreCenter 3400. The 1U rackmount enclosure provides the flexibility to integrate the ATTO FibreCenter in pairs.

The following items are included with the ATTO FC Rack System:

❈Up to two (2) ATTO FibreCenter modules ❈One (1) or two (2) power modules.

❈One (1) or two (2) independent cooling fans ❈One (1) or two (2) AC shielded power cord(s).

❈Two (2) Rackmount “L” brackets and (4) screws for mounting the unit into the rack.

The main enclosure of the ATTO FC Rack System houses all the FibreCenter modules and power modules: two bays for FibreCenter and two bays for power modules.

Physical dimensions

Width: 17.4 inches (441.6 mm)

Depth: 17 inches (431.5 mm)

Height: 1.72 inches (43.7 mm)

Operating environment

Operating temperature: 0-40° Celsius

Humidity: 0-90% non-condensing

Mounting

You can install the ATTO FC Rack System with ATTO product modules facing the front or the back using the "L"-brackets and mounting holes provided on either end. The mounting holes on the "L"-bracket fit a standard 19-inch rack, using a centered 1.25-inch (31.7 mm) hole pattern.

Air flow and cooling

The FC Rack System cooling fans are contained within the power module. Each power module contains two 8-CFM fans and provides a total of 16 CFM of airflow. A system that has two power modules installed will have a total of 32 CFM of airflow. Air enters through the sides of the enclosure and is exhausted out the power

modules. Ambient air near the inlets should not exceed 40° C.

WARNING Do not block the vents on either side of the main enclosure. Blocking the vents may cause overheating and could damage the product.

Internal power distribution

The ATTO FC Rack System provides a redundant power scheme with two hot swappable power supply modules. Each power supply module feeds 12V to the backplane. From there the power is distributed to the FibreCenter 3400 modules and the fans.

A failure of one power supply will not affect the functionality of the modules or the cooling system since the second supply will continue to supply power to the backplane. In a redundant power supply installation, one supply can be removed and replaced without affecting the rest of the system in any way.

The product module will detect power supply failures, voltage regulation and failover.

NOTE: Power modules will load balance when two are present in the ATTO FC Rack System

The power module is a hot swappable unit that contains enough power to supply two ATTO product modules and four cooling fans. Each is designed to slide into the ATTO FC Rack System enclosure in either of the two bays on the end of the rack enclosure that is closer to the backplane and farther away from the cooling vents in the sides of the rack enclosure.

110/230V AC, with an operating input range of 90-132V AC or 175-264V ac, 47- 63Hz, single phase. The AC input range selection is automatic. No manual jumper or switch over is required.

7 ATTO FibreCenter 3400 Installation and Operation Manual