Cisco 2501 Getting Started Guide - Page 6
Green, Blinking Green, The Gigabit POE ports are RJ-45 connector
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Callout Port and LEDs State and Description 1 GigE port and LED The Gigabit Ethernet port is an RJ-45 connector form-factor. This port is designed so that 1500 VAC rms isolation (per the 802.3 specification) is met between chassis ground and any 48V/Ethernet signal. LED description: • Green or Blinking Green-Link activity • Off-No link 2 GigE port and LED The Gigabit Ethernet port is an RJ-45 connector form-factor. This port is designed so that 1500 VAC rms isolation (per the 802.3 specification) is met between chassis ground and any 48V/Ethernet signal. LED description: • Green or Blinking Green-Link activity • Off-No link 3 & 4 POE GigE Power-over-Ethernet (POE) ports The Gigabit POE ports are RJ-45 connector form-factor. They provide a I2C communications channel between the PSE controller and host CPU TWSI bus #1. This interface supports the proper voltage isolation as defined by 802.3. The POE controller is configured to I2C address 0x40/41 (0100 000r/w). The POE controller reset is driven from system reset. If software needs to reset the POE controller, it can do so over I2C. LED description: • Green or Blinking Green-Link activity • Off-No link Note Ports 3 and 4 are PoE only ports; do not connect access point devices to these ports. The ports can be used for infra-switch connection using multiple an AP-Manager or data interface. 6