Fast Ethernet Ports; Gigabit Ethernet Ports - Cisco 1240 Hardware Installation Manual

Hardware Features Detailed Description
D E C . 2 0 1 1 — E F T R E V I E W D R A F T — C I S C O C O N F I D E N T I A L
Ethernet Connections
The established Ethernet standard is IEEE 802.3. The router supports the following Ethernet
implementations:
•
•
•

Fast Ethernet Ports

The router features four Fast Ethernet (FE) ports that can be connected to an Ethernet hub or switch. The
ports are labeled as follows (see
•
•
•
•
Note Although port ETH 2/5 is labeled PoE, this port does not currently support Power over Ethernet (PoE).
Specifications
Specification
Connector type
Cables
Interface speed
Time stamp
Pinouts

Gigabit Ethernet Ports

The router features two Gigabit Ethernet (GE) ports that can be connected to an Ethernet hub or switch.
The ports are labeled as follows (see
•
•
Interfaces ETH 2/1 and ETH 2/2 are also used by the
Note
more information about how these ports are used together, see
The GE ports automatically detect the type of any connected cable (fiber or copper) and then switch to
the corresponding mode (fiber or copper). When both cables types are connected to the router, the first
cable that establishes a link is enabled.
Cisco 1240 Connected Grid Router Hardware Installation Guide
2-22
1000BASE-T—1000 Mbps full-duplex transmission over a Category 5 or better unshielded
twisted-pair (UTP) cable. Supports the Ethernet maximum length of 328 feet (100 meters).
100BASE-T—100 Mbps full-duplex transmission over a Category 5 or better unshielded
twisted-pair (UTP) cable. Supports the Ethernet maximum length of 328 feet (100 meters).
10BASE-T—10 Mbps full-duplex transmission over a Category 5 or better unshielded twisted-pair
(UTP) cable. Supports the Ethernet maximum length of 328 feet (100 meters).
ETH 2/3
ETH 2/4
ETH 2/5
ETH 2/6
Description
RJ-45
Category 5 or higher
10BASE-T and 100BASE-TX
IEEE 1588
See Connector and Cable Specifications
ETH 2/1
ETH 2/2
Figure 2-16):
Figure 2-16):
Small Form-Factor Pluggable (SFP)
Chapter 2 Router Hardware Description
Combo Ports, page 2-26.
Ports. For
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