valutazioni - 5, GPA: 4
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Steps 3 and 4 signal IRC that you additionally want to hold down the Alt key on the managed server keyboard. Steps 5 and 6 generate a Del key on the managed server keyboard. Since the Del key was preceded by the Ctrl and Alt compose sequences, all three are pressed simultaneously on the server’s keyboard. The Del support sequence, since it is not an attention compose sequence, automatically ends the compose sequence, releasing both the Ctrl and Alt keys following the Ctrl + Alt + Del sequence. Compaq Integrated Remote Console User Guide 5-8 Using Attention Key Sequences More Attention Key Examples Table 5-4 summarizes how to compose some common key sequences within the Remote Console mode from any ANSI terminal program. The abbreviations L-Shift, L-Ctrl, and L-Alt are used to represent Left-Shift, Left-Ctrl, and Left-Alt respectively. Similarly, R-Shift, R-Ctrl, and R-Alt represent Right- Shift, Right-Ctrl, and Right-Alt, respectively. Table 5-4 Attention Key Composition Examples Desired Key sequence Attention Key sequence F10 [Atn] 0 (emulates pressing the F10 key) Alt + F [Atn] X F (emulates pressing both L-Alt, and F simultaneously) Ctrl + Alt + Del [Atn] Z [Atn] X [Atn] B (emulates pressing L-Ctrl, L- Alt, and Delete simultaneously) Alt + L-Shift [Atn] X [Atn] A [Atn] Enter (emulates pressing L-Alt and L-Shift simultaneously.) Attention Key Template Figure 5-1 illustrates the layout of the attention key sequences. Essentially the attention key places the keyboard in an alternate mode, much like the “altfunction” keys on a laptop keyboard. Note the geographic placement of these sequences as seen on an U.S. domestic keyboard layout. AltAlt Refresh ScreenAlt Ctrl Sequen End Ctrl Menu Ctrl Shift ShiftShift Tab Esc Backspace Enter PgDn PgUpHomeIns EndDel Seq Clear Figure 5-1. Example: United States Keyboard with Attention Keys indicated Changing the Attention Key See Chapter 4 for instructions on how to change the attention key. The attention key may be changed to any ASCII key, preferably a key that is infrequently used. Compaq Integrated Remote Console User Guide Chapter 6 Additional Modem Information Integrated Remote Console (IRC) has been tested and is compatible with a wide variety of internal and external modems. IRC requires a high-speed (14400 baud or greater) Hayes-compatible serial modem. Virtually all external RS-232 serial modems meet this requirement. Modem Types Internal modems must be ISA and must be controller-based. The following sections describe many of the commercially available types of modems and their compatibility with IRC. Table 6-1 Modem Requirements Internal Modem External Modem n High-Speed with error negotiation protocol (V.FC, V.42, V.34, LAPM, V.90) n High-Speed with error negotiation protocol (V.FC, V.42, V.34, LAPM, V.90) n Controller-based (16550 or equivalent) n Serial (RS-232) Interface n ISA adapter card n Jumper-able resource settings (COM & IRQ) Compaq Integrated Remote Console User Guide 6-2 Additional Modem Information External Serial Modems IRC supports most external high-speed serial modems. Some modems, like the Compaq Microcom 510, offer both a serial and parallel (APT) interface. Such modems must be connected through the serial interface to operate correctly with IRC. External modems are cabled to the managed server using a standard straight- through DTE to DCE style cable. A standard DB-9F to DB-25M cable can be used and there are no specific requirements specific to IRC. Important Tip Most external modems offer modem state indicator lights, which can be useful troubleshooting tools, particularly if you are configuring IRC for the first time. If IRC is configured for the proper COM port, the TR or DTR indicator should be illuminated shortly after the Compaq ProLiant splash screen is displayed during power-on-self-test (POST). The AA indicator indicates that the modem has been placed in auto-answer mode. If the modem has not been pre- configured (through switches on the modem) for auto-answer mode, this signal should also be illuminated shortly after the TR indicator. This indicates that IRC can communicate with the modem and the modem has correctly received the auto-answer string configured through the Compaq System Configuration Utility. If the managed server is running Windows NT as its primary operating system, this indicator can also reflect the ownership of the modem in the shared configuration. Windows NT 4.0 generally does not program the modem for auto-answer mode. As a result, if the AA indicator is illuminated after Windows NT has booted, IRC currently owns the modem. Similarly, if the AA indicator is not illuminated, the modem is currently in use by the operating system. Internal ISA Plug-n-Play Modems Internal ISA Plug-n-Play modems, designed for the PC consumer industry, are designed to be easy to install and configure. Such modems rely on the operating system for resource configuration, eliminating the need for the user to set predetermined jumper...