Cisco CISCO2650 - 2650 Router Hardware Installation Manual page 232

Cisco EtherSwitch Services Modules
Port Types
All Cisco EtherSwitch service modules, including the Cisco StackWise EtherSwitch service module, use
RJ-45 connectors to provide Fast Ethernet (FE) connections.
The single-wide 16- and 24-port Cisco EtherSwitch service modules have one additional RJ-45
connector to support a Gigabit Ethernet connection. The double-wide, 48-port Cisco EtherSwitch service
module has two SFP Gigabit Ethernet module slots.
The double-wide Cisco StackWise EtherSwitch service module has one SFP Gigabit Ethernet module
slot.
Both SFP and Gigabit Ethernet interfaces can support trunks.
Note
Cisco EtherSwitch service modules do not have a physical console interface, but are accessible for
Note
software configuration and other operational procedures through console sessions between the Cisco
EtherSwitch service module and the host router.
10/100 and 10/100/1000 Ports
You can set the 10/100 ports on the Cisco EtherSwitch service module to operate in any combination of
half duplex, full duplex, 10 Mbps, or 100 Mbps. You can set the 10/100/1000 ports to operate at
10 Mbps, 100 Mbps, or 1000 Mbps in full duplex. You can also set these ports for speed and duplex
autonegotiation in compliance with IEEE 802.3ab. (The default setting is autonegotiate.)
When set for autonegotiation, the port senses the speed and duplex settings of the attached device and
advertises its own capabilities. If the connected device also supports autonegotiation, the Cisco
EtherSwitch service module port negotiates the best connection (that is, the fastest line speed that both
devices support and full-duplex transmission if the attached device supports it) and configures itself
accordingly. In all cases, the attached device must be within 100 meters
(328 feet).
All 10/100 ports on the NME-16ES-1G-P, NME-X-23ES-1G-P, NME-XD-24ES-1S-P, and
NME-XD-48ES-2S-P Cisco EtherSwitch service modules can provide power to IEEE 802.3af-compliant
and noncompliant Power over Ethernet (PoE) devices. PoE devices are Cisco IP phones, Cisco access
points, and some Cisco switches. PoE, formerly referred to as inline power, is available in all network
module form factors supported by Cisco modular access routers.
Table 18-2
information.
Cisco Network Modules Hardware Installation Guide
18-6
provides information on Cisco EtherSwitch service module port speed and duplex
Chapter 18 Connecting Cisco EtherSwitch Service Modules
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