Electrical continuity is assured, between the rack ground and the power supply receptacle via
ground straps
.2/
.
Electrical continuity is assured, between the rack ground and the Line Connection Box (LCB),
if LCBs are present. This operation must be performed before any network connection (see
Figure 0-6).
c. Grounding of Line Connection Boxes (LCBs) not Installed in 2220
Check that electrical continuity is assured between the LCB housing and the premises grounding
system.
There are two ways to insure a proper grounding of the LCB, according to where it is installed:
1) Grounding is insured by the four screws (which secure the LCB on the rack) if the frame of the
rack is connected to the premises ground system.
Screws for
Grounding
Front View
Figure
0-6. LCB Grounding via Screws
2) Grounding is insured by a wire connected from the LCB to the premises ground system, when
the LCB is installed in a rack with frame not connected to the premises ground system.
xxii
2220 Models 300, 500, and 501: Service Guide
Содержание 2220 Nways 300
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Страница 52: ...Part number index Appendix X Gives Bibliography Glossary Index l 2220 Models 300 500 and 501 Service Guide...
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Страница 70: ...Figure 3 7 Search Options in the Alarm Desk Window 3 12 2220 Models 300 500 and 501 Service Guide...
Страница 77: ...Chapter 3 Nways Switch Administration Station Functions 3 19...
Страница 79: ...Figure 3 11 Example of TCP IP address Chapter 3 Nways Switch Administration Station Functions 3 21...
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Страница 111: ...Chapter 5 2220 Problem Determination Copyright IBM Corp 1998 1999 5 1...
Страница 118: ...5 8 2220 Models 300 500 and 501 Service Guide...
Страница 126: ...3 2 1 1 Figure 6 6 Side Cover Removing for 29 U rack 6 8 2220 Models 300 500 and 501 Service Guide...
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Страница 205: ...Appendix A Schematics A 11...
Страница 206: ...A 12 2220 Models 300 500 and 501 Service Guide...
Страница 217: ...Catalog Section Appendix D Parts Catalog D 7...
Страница 218: ...Assembly 1 2220 Enclosure Assembly Models 300 500 and 501 1 2 D 8 2220 Models 300 500 and 501 Service Guide...
Страница 220: ...Assembly 2 2220 Control Panel and FAN Box Assembly 2 1 3 4 5 D 10 2220 Models 300 500 and 501 Service Guide...
Страница 222: ...Assembly 3 2220 AC DC and DC Power Supply Assembly 1 3 2 4 5 D 12 2220 Models 300 500 and 501 Service Guide...
Страница 224: ...Assembly 4 2220 Board Assembly 2 3 1 8 7 5 6 4 Front View Rear View D 14 2220 Models 300 500 and 501 Service Guide...
Страница 226: ...Assembly 5 2220 Modules 1 2 D 16 2220 Models 300 500 and 501 Service Guide...
Страница 230: ...Assembly 7 Internal Cables Assembly Rear View 1 2 3 4 D 20 2220 Models 300 500 and 501 Service Guide...
Страница 234: ...Assembly 9 29 U RACK Assembly Side Covers 1 2 3 5 6 4 D 24 2220 Models 300 500 and 501 Service Guide...
Страница 240: ...Assembly 12 29 U RACK Assembly Rear Side 2 1 Rear View D 30 2220 Models 300 500 and 501 Service Guide...
Страница 244: ...D 34 2220 Models 300 500 and 501 Service Guide...
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Страница 264: ...IBM Part Number 02L4247 Printed in Denmark by IBM Danmark A S 2L4247 SY33 2121 1...