Token Ring Connections; Serial Connections; Configuring Serial Connections; Serial Dte Or Dce Devices - Cisco Router 3600 Hardware Installation Manual

Chapter 2 Preparing to Install the Router

Token Ring Connections

The IEEE has established Token Ring as standard IEEE 802.5. Specifications indicate a maximum
segment distance of 328 feet (100 meters) for UTP cabling.
Note To ensure agency compliance with FCC Class B electromagnetic emissions requirements (EMI), make
sure that you use a shielded RJ-45 Token Ring cable when connecting your router to a Token Ring
network.
Token Ring can operate at two different ring speeds: 4 and 16 Mbps. All devices on the Token Ring must
use the same operating speed.
Use a Token Ring cable to connect the router to a switch. Refer to the section "Token Ring Port Pinouts"
in the
pinouts. This document is available online and on the Cisco Documentation CD-ROM.

Serial Connections

Serial connections are provided by WAN interface cards and network modules. For more information on
WAN interface cards, refer to the
network modules, refer to the
are accessible online and on the Cisco Documentation CD-ROM.
Before you connect a device to a serial port, you need to know the following:
•
•
•

Configuring Serial Connections

The serial ports on the asynchronous/synchronous serial network modules and the serial WAN interface
card use DB-60 connectors. Serial ports can be configured as DTE or DCE, depending on the serial cable
used.

Serial DTE or DCE Devices

A device that communicates over a synchronous serial interface is either a DTE or DCE device. A DCE
device provides a clock signal that paces the communications between the device and the router. A DTE
device does not provide a clock signal. DTE devices usually connect to DCE devices. The documentation
that accompanied the device should indicate whether it is a DTE or DCE device. (Some devices have a
jumper to select either DTE or DCE mode.)
OL-2056-05
Cisco Modular Access Router Cable Specifications
Cisco Network Modules Hardware Installation
Type of device, data terminal equipment (DTE) or data communications equipment (DCE), you are
connecting to the synchronous serial interface
Type of connector, male or female, required to connect to the device
Signaling standard required by the device
online document for the Token Ring port
Cisco Interface Cards Installation
Table 2-2 lists typical DTW and DCE devices.
Cisco 3600 Series Routers Hardware Installation Guide
Preparing to Connect to a Network
Guide. For more information on
Guide. These documents
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