Line Loopback Test
This test sends on a line a predefined sequences of data. These data are looped
back and checked when they are received.
Local Node
Switch
Adapter
LIC
Remote Equipment
LS
Local Node
Switch
Adapter
LIC
Remote Node
Adapter
Switch
LIC
LS
Figure
4-9. Area Tested by the Line Loopback Test
Attention:
Before starting the Line Loopback Test, the remote line attachment must be set in
wrap mode by starting Line Loop. The Line Loopback Test locks the selected line
and stops its traffic. Howewer, it it is not disruptive on other lines of the LIC (if
any).
2220 Trunk Loopback Test
This test sends on a trunk predefined sequences of data. These data are looped
back and checked when they are received.
Local Node
Switch
Adapter
LIC
Remote Node
LIC
Adapter
Switch
LS
Figure
4-10. Area Tested by the 2220 Trunk Loopback Test
Attention:
Before starting the 2220 Trunk Loopback Test, the remote trunk attachment must
be set in wrap mode by starting Trunk Loop. The 2220 Trunk Loopback Test
locks the selected trunk and stops its traffic. Howewer, it is not disruptive on other
trunks of the LIC (if any).p
4-6
2220 Models 300, 500, and 501: Service Guide
Summary of Contents for 2220 Nways 300
Page 1: ...2220 Nways BroadBand Switch Models 300 500 and 501 IBM Service Guide SY33 2121 01...
Page 2: ......
Page 3: ...2220 Nways BroadBand Switch Models 300 500 and 501 IBM Service Guide SY33 2121 01...
Page 12: ...x 2220 Models 300 500 and 501 Service Guide...
Page 35: ...General and Product Safety xxxiii...
Page 36: ...xxxiv 2220 Models 300 500 and 501 Service Guide...
Page 37: ...General and Product Safety xxxv...
Page 38: ...xxxvi 2220 Models 300 500 and 501 Service Guide...
Page 39: ...General and Product Safety xxxvii...
Page 40: ...xxxviii 2220 Models 300 500 and 501 Service Guide...
Page 41: ...General and Product Safety xxxix...
Page 50: ...xlviii 2220 Models 300 500 and 501 Service Guide...
Page 58: ...2 4 2220 Models 300 500 and 501 Service Guide...
Page 77: ...Chapter 3 Nways Switch Administration Station Functions 3 19...
Page 108: ...4 24 2220 Models 300 500 and 501 Service Guide...
Page 111: ...Chapter 5 2220 Problem Determination Copyright IBM Corp 1998 1999 5 1...
Page 118: ...5 8 2220 Models 300 500 and 501 Service Guide...
Page 194: ...6 76 2220 Models 300 500 and 501 Service Guide...
Page 205: ...Appendix A Schematics A 11...
Page 206: ...A 12 2220 Models 300 500 and 501 Service Guide...
Page 217: ...Catalog Section Appendix D Parts Catalog D 7...
Page 226: ...Assembly 5 2220 Modules 1 2 D 16 2220 Models 300 500 and 501 Service Guide...
Page 244: ...D 34 2220 Models 300 500 and 501 Service Guide...
Page 246: ...E 2 2220 Models 300 500 and 501 Service Guide...
Page 248: ...X 2 2220 Models 300 500 and 501 Service Guide...
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Page 264: ...IBM Part Number 02L4247 Printed in Denmark by IBM Danmark A S 2L4247 SY33 2121 1...