Cisco MGX 8950, Installation Manual

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Cisco MGX 8950 Hardware Installation Guide
Release 3, Part Number 78-14147-02 Rev. A0, November 2002
Chapter 3 Installing a Cisco MGX 8950
Installation Procedures
Complete the following steps to connect the external clock using the wire-wrap adapter:
Step 1
Remove the pin cover from the adapter (see Figure 3-35 ). The pin cover provides ESD shielding.
Figure 3-35 Removing the Pin Cover from the Adapter
Step 2
Insert the shielded clock source cable through the hole of the pin cover. See Figure 3-36 .
Note
A shielded clock source cable must be used to ensure EMI containment.
Figure 3-36 Inserting the Cable through the Pin Cover
Note
The length of the exposed (unshielded) wires should be 2 to 4 inches. The maximum length
must not exceed 4 inches.
Step 3
Use a wire-wrapping tool to wrap the shield drain wire to the ground pin (pin 3 or 6) of the adapter. The
shield drain wire is the bare wire shown in
Figure 3-37 .
Figure 3-37 Wires Wire-Wrapped to Pins
52803
5
6
7
8
52805
1
2
3
4
5
6
7
8
53281
1
2
3
4