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This document describes how to ensure electromagnetic interference (EMI) compliance for port adapters before installation in the Catalyst 8540 MSR. This document includes the following sections:
The Catalyst 8540 MSR port adapters must have EMI strips to ensure compliance with emission standards.
Figure 1 shows a port adapter equipped with an EMI strip on the top edge of the metal faceplate. EMI strips are located on the top and bottom edges of the metal faceplate.
LightStream 1010 ATM switch port adapters shipped prior to January 1, 1999 are equipped with EMI clips. Figure 2 shows a port adapter with EMI clips located on the top edge of the metal faceplate.
The Catalyst 8540 MSR supports port adapters used in the LightStream 1010 chassis. However, you must replace the EMI clips on the LightStream 1010 port adapters with EMI strips (see Figure 1) to meet EMI compliance in the Catalyst 8540 MSR. Port adapters with EMI clips do not comply with EMI standards listed in Table 1 when installed in the Catalyst 8540 MSR.
| EMI1 Standard | Year and Class |
|---|---|
FCC2 Part 15 (CFR47) | 1997 Class A |
EN3 55022 | 1994 Class B |
CISPR4 22 | 1993 Class B |
VCCI5 | 1995 Class B |
AS/NZS6 3548 | 1995 Class B |
You need the following equipment to remove EMI clips and replace them with EMI strips:
 | Warning During this procedure, wear grounding wrist straps to avoid ESD damage to the card. Do not directly touch the backplane with your hand or any metal tool, or you could shock yourself. |
Take the following steps to remove the EMI clips from the port adapter:
Step 1 Wear the grounding wrist strap to prevent ESD damage. Ensure that the grounding wrist strap makes good skin contact.
Step 2 Place the port adapter component side up on an antistatic mat.
Step 3 Use needle-nose pliers to remove all the EMI clips. (See Figure 3.)
Step 4 Turn the port adapter over so that the component side is facing down.
Step 5 Repeat Step 3.
Step 6 Dispose of the EMI clips.
Take the following steps to apply the EMI strips to the port adapter:
Step 1 Place the port adapter on an antistatic mat with the component side facing down.
Step 2 Remove the adhesive strip on the back of the EMI strip.
Step 3 Place the EMI strip on the metal edge of the faceplate. The EMI strip covers the same area where the EMI clips were previously located. (See Figure 4.)
Step 4 Press the EMI strip down on the metal faceplate.
Step 5 Turn the port adapter component side up.
Step 6 Repeat Steps 2 to 4.
This completes the procedure for replacing EMI clips with EMI strips on a port adapter. Port adapters shielded with EMI strips are EMI compliant and are ready for installation in the Catalyst 8540 MSR. For instructions on how to install port adapters in the Catalyst 8540 chassis, refer to the chapter "Installing ATM Port Adapters" in the ATM Port Adapter Installation Guide.
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Posted: Thu Sep 2 10:41:56 PDT 1999
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