Cabling Specifications
This appendix describes cables and cabling guidelines for the Cisco 1721 router
and contains the following sections:
For information about cables used with Cisco WICs, refer to the Cisco WAN
Note
Interface Cards Hardware Installation Guide, which comes with each card.
Ethernet Cables
This section describes the Ethernet cables that are used to connect the router to
your local Ethernet network. A 10/100BASE-TX router, such as the Cisco 1721
router, requires Category 5 unshielded twisted-pair (UTP) or shielded
twisted-pair (STP) cable.
Table B-1
78-13834-02
Ethernet Cables
•
Ethernet Network Cabling Guidelines
•
Console Cable and Adapter
•
Ethernet Cable Pinouts
RJ-45
1
Pin
Signal
1
TX+
2
TX–
A P P E N D I X
Table B-1
gives the pinouts for an Ethernet cable.
RJ-45
Direction
Pin
—>
1
—>
2
Cisco 1721 Router Hardware Installation Guide
B
B-1