Chapter 1 Cisco
Hardware Component Descriptions
OIR Feature
The OIR feature allows you to remove an Ethernet controller or an upstream or downstream module and replace it with another identically configured one. If the new controller or module matches the controller or module you removed, the system immediately brings it online. To allow OIR, an address allocator with a unique MAC address is stored in an EEPROM on the Cisco RF switch midplane. Each address is reserved for a specific port and slot in the switch, regardless of whether an Ethernet controller or an upstream or downstream switch module resides in that slot.
Slot MAC Addresses
The MAC addresses are assigned to the slots in sequence. The first address is assigned to Ethernet controller slot 0, and the next addresses are assigned to upstream and downstream card slots 1 through 14 (refer to the “Cisco uBR 3x10 RF Switch Slot Information” section on page
Hardware Component Descriptions
The following components are included in the Cisco uBR 3x10 RF Switch chassis:
•Power supply module
•Ethernet controller module
•Upstream
•Downstream
Power Supply Module
•Cisco part number
The power supply module takes 100 to 240 VAC input and provides +12 VDC output. It also takes
A control switch on the front panel is used to select DC input or AC input operation. This a
Caution When inserting or removing the power supply from the Cisco uBR 3x10 RF Switch chassis, you must use a screwdriver to tighten and loosen the captive installation screws.
Cisco
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