|
Before you install the workgroup EISA adapter, please read this chapter carefully.
Follow these guidelines to ensure general safety:
Warning Keep the equipment area clear and dust-free during and after installation. |
Follow these guidelines when working on equipment powered by electricity.
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. It occurs when electronic components are improperly handled and can result in complete or intermittent failures.
Always follow ESD-prevention procedures when removing and replacing components. Ensure that the chassis is electrically connected to earth ground. Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. Connect the clip to an unpainted surface of the chassis frame to safely channel unwanted ESD voltages to ground. To properly guard against ESD damage and shocks, the wrist strap and cord must operate effectively. If no wrist strap is available, ground yourself by touching the metal part of the chassis.
Warning For safety, periodically check the resistance value of the antistatic strap, which should be between 1 and 10 meg ohms (Mohms). |
Following are the site requirements for installation.
Choose a clean, dust free, (preferably) air-conditioned location. Avoid direct sunlight, heat sources, or areas with high levels of electromagnetic interference (EMI).
Because the adapter faceplate LEDs provide information you may need to monitor, make the rear of the PC or workstation accessible and leave sufficient clearance for cabling and service.
The source electrical outlet should be installed near the PC or workstation, easily accessible, and properly grounded. Power should come from a building branch circuit. Use a maximum breaker current rating of 20A for 110V or 8A for 230V. Note the power consumption ratings of each unit before you connect to a power source.
Following are the cabling requirements for installation. For pinouts of the CDDI cabling, refer to the appendix "Cabling and Pinout Information."
The multimode FDDI connectors on the workgroup EISA adapter accept 62.5/125-micron or 50/125-micron multimode fiber, with standard FDDI media interface connector (MIC)-type connectors.
Table 2-1 lists FDDI maximum transmission distances, and Figure 2-1 illustrates a multimode FDDI connector.
Transceiver Type | Maximum Distance Between Stations |
---|---|
Multimode | 1.2 miles (up to 2 km) |
Warning Invisible laser radiation may be emitted from the aperture ports of the single-mode FDDI card when no cable is connected. Avoid exposure and do not stare into open apertures. |
Check all existing cables for conformance with CDDI/multilevel transmission (MLT-3) distance requirements and to ensure that you have the proper connectors (modular RJ-45). See the appendix "Cabling and Pinout Information" for detailed cable usage.
Following are cable and distance specifications:
When you plan your CDDI installation, remember the following:
To install the workgroup EISA adapter, you need the following tools and supplies:
|