Cisco各类线缆

Modem/Console Connectors and Cables

Figure 3-30 and Figure 3-31 illustrate the modem and console connectors, respectively, on the switch card console/modem assembly.

The data cable used for both the console and modem ports is described in the section RS-232 Straight-Through Data Cable.

RS-232 Modem Connector Specification

Interface connector type: DB25 male, DTE

Connectors per assembly: 1, labeled MODEM

Figure 3-30 shows a schematic diagram of the RS-232 modem port connector.

RS-232 Console Connector Specification

Interface connector type: DB25 female, DCE

Connectors per assembly: 1, labeled CNSL

Figure 3-31 shows a schematic diagram of the console port connector.

RS-232 Straight-Through Data Cable

Where used: To connect the LS2020 console port or modem port to a console or modem.

Cisco Systems does not provide this cable; it is widely available from other vendors.

shows a schematic diagram of the RS-232 straight-through data cable.

Country Kits and Power Cordsets

AC-Powered LightStream 2020 Systems

A variety of power cordsets is available for AC-powered LS2020 switches. These cordsets are available either with systems or as spare parts. This section enables you to choose the proper cordset for your LS2020 site.

If you are specifying a cordset as part of a new system order, refer to the LS2020 Price List or the Products Catalogue and order the appropriate Country Power Kit. Doing so ensures that you will also receive the appropriate labels and instructions for the country of destination.

If you want to check the cordset included in a specific Country Power Kit, refer to Table 3-2, which cross-references cordset product numbers and Country Power Kit models.

If you need to order a replacement cordset that is not part of a Country Power Kit, you must reference the cordset's part number. This part number (P/N) appears above each cordset illustrated in the following section entitled "LightStream 2020 AC Power Cordsets."

DC-powered LightStream 2020 Systems

A DC-powered system does not use a detachable power cord. The DC power cord must be permanently wired to a DC power source. Therefore, in place of a Country Power Kit, each DC-powered system is shipped with a DC Mounting Kit, Order Number L2020-PWR-DC=.

LightStream 2020 AC Power Cordsets

Each LS2020 AC power tray is equipped with one recessed male power inlet. The power connectors follow IEC Standard 320 C20 and require cordsets with an IEC 320 C19 female connector. (All cordsets offered by Cisco Systems for the LS2020 switch have IEC 320 C19 female connectors.)

Table 3-2 summarizes the specifications of AC power cordsets. The table lists the country of use, cordset rating, plug type, part number, and Country Power Kit for each cordset.