Accton Technology 12mi SNMP, 12i manual Rear Panel Components, Power Supply Modules

Fast EtherHub 3500 System User’s Guide

Rear Panel Components

The rear panel is also similar for all versions. Figure 5.3 shows the rear panel, which includes a primary power supply, a slot for an optional secondary power supply module, and two backplane connectors used for stacking up to 6 hubs. For easier management and control of the hub, familiarize yourself with the indicators, ports, and backplane connectors provided by the hub.

Figure 5-3 Rear Panel

Power Supply Modules

The Fast EtherHub 3500 series supports both a primary and backup power supply. The backup power supply is optional (Part Number EM3550-PWR). When using two modules, the load is shared equally between both, reducing the chance of failure, but still providing backup power in case either module should fail. By connecting the power supplies to separate AC circuits, you can also provide backup in case an AC supply circuit should fail. This ensures that there will be no interruption to network or agent processes in case of a limited power failure. The power socket accepts AC power from 100 to 240V (± 10%) at 50 to 60 Hz (± 3Hz). The hub is equipped with a universal full-range power source.

Hardware Reference 5-15