Cisco CISCO7206, Быстрый старт

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Port adapter documentation for configuring the interfaces
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T1 channel service unit/data service unit (CSU/DSU) that converts the High-Level Data Link Control (HDLC) synchronous
serial data stream into a T1 data stream with the correct framing and ones density to connect a serial port to a T1 network.
(Some telephone systems require a minimum number of 1 bits per time unit in a data stream, called ones density.) Several
T1 CSU/DSU devices are available as additional equipment, and most provide a V.35, EIA/TIA-449, or EIA-530 electrical
interface.
Preparing for Workbench or Tabletop Installation
For a workbench or tabletop installation, verify the following before installing the router:
1. The router is off the floor and has adequate ventilation.
2.
An adequate chassis ground (earth) connection exists for the router.
3.
The router has at last 3 inches (7.62 cm) of clearance at the inlet and exhaust vents (sides of router).
4. The router has 19 inches (48.3 cm) clearance at the front and rear to allow for field replaceable unit (FRU) replacement or
installation, or to access cables or equipment.
5.
Port adapter and power supply filler panels are installed if port adapters and a second power supply are not installed. There
must be no empty slots.
For cable-management bracket installation instructions, see page 7.
Preparing for Rack-Mount Installation
Make these decisions before you begin the rack-mounting tasks:
•
Decide whether or not you want to front- or rear-mount the chassis.
•
Decide whether or not you want to attach cable-management brackets.
• Determine the type of rack—four-post or two-post—that you will be using.
Note
To install the Cisco 7206 as a router shelf in a Cisco AS5800 Universal Access Server, refer to the Cisco AS5800
Universal Access Server publications online at
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/as5800/index.htm.