Dual Mode Ge Or Sfp Ports; Usb Serial Console Port; Front Panel Poe+ Ports; Internal Poe Daughter Card - Cisco 4000 Series Hardware Installation Manual

Hardware Features of Cisco 4000 Series ISRs

Dual Mode GE or SFP Ports

There are dual mode ports available on the router which can function as GE or SFP ports.
GE Ports
The GE RJ-45 copper interface ports support 10BASE-T, 100BASE-TX, and 1000BASE-T.
SFP Ports
The small-form-factor pluggable (SFP) ports support, 1000BASE-LX/LH, 1000BASE-SX,
1000BASE-ZX, and Coarse Wavelength-Division Multiplexing (CWDM-8) modules, as well as 100Mbs
SFP modules.
The SFP port shares the same physical port as an RJ-45 GE port with the same number. At a time, it can
be used for only one function. As described in the IEEE 802.3ah specification, the SFP port supports
auto-media-detection, auto-failover, and remote fault indication (RFI).
Use the media-type command to enable the auto-media-detection and auto-failover features.
You can configure the SFP port by using the media-type configuration command to select either the
RJ-45 or the SFP connector. When the media-type is not configured, by default, the auto-select feature
is enabled. The auto-select feature automatically detects the media that is connected and links it up. If
both media are connected, the media that comes up first is linked, and it is treated as the primary media.
This primary media is explicitly indicated as an SFP or RJ-45 link. When the router receives an
indication that the primary media is down, the secondary failover media is enabled. After the switchover,
when the primary media is later restored, the media does not switch back to the primary media. By
default, the RJ-45 port is configured as the primary media-type and if it fails, the media failovers to the
SFP port. Conversely, when the SFP port is configured as the primary media-type and if it fails, the
media switches to the RJ-45 port.

USB Serial Console Port

The Mini-USB type B serial port can be used as an alternative to the RJ-45 console port. For Windows
operating systems earlier than Windows 7, you must install a Windows USB device driver before using
the USB console port.
Cisco 4461 supports Mini-USB type B serial port and Micro-USB type B serial port.
Note

Front Panel PoE+ Ports

On Cisco 4451-X ISR and Cisco 4351 ISR, two front panel Ethernet ports are PoE+ (802.3at) compliant
ports. These are ports GE 0/0/0 and GE 0/0/1. Cisco 4431 ISR, Cisco 4321 ISR and Cisco 4221 do not
support front panel PoE+.
System PoE power supplies do not provide power to the front panel ports.

Internal PoE Daughter Card

The internal PoE daughter card provides a total of 30.8 watts of power across the two ports.
Hardware Installation Guide for the Cisco 4000 Series Integrated Services Router
1-28
Chapter 1 Overview of Cisco 4000 Series ISRs
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