i
3550-A2-GB20-40
July 1999
Table of Contents
Preface
About This Guide
vii
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How to Use This Guide
vii
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Related Documents
viii
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Reference Documents
viii
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1.
About Your DSU
Overview
1-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standard Features
1-1
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Optional Features
1-2
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Upgrades Available
1-3
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Technical Specifications
1-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Warranty and Support
1-8
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2.
Installing the Model 3550 DSU
Overview
2-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before You Begin
2-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Change Hardware Straps
2-2
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Where to Place the DSU
2-4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the DSU
2-4
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Connecting to the Network
2-5
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Addressing the Unit
2-8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the DSU to a DTE
2-10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verifying Operation and Testing Connections
2-11
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3.
Installing the Model 3551 DSU
Overview
3-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before You Begin
3-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Change Hardware Straps
3-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the DSU
3-5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting to the Network
3-8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the DSU to a DTE
3-9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Addressing the Unit
3-9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Verifying Operation and Testing Connections
3-10
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Summary of Contents for COMSPHERE 3550 Series
Page 4: ...COMSPHERE 3550 Series Data Service Units C July 1999 3550 A2 GB20 40 Notices...
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Page 68: ...COMSPHERE 3550 Series Data Service Units 4 22 July 1999 3550 A2 GB20 40...
Page 98: ...COMSPHERE 3550 Series Data Service Units 5 30 July 1999 3550 A2 GB20 40...
Page 100: ...COMSPHERE 3550 Series Data Service Units A 2 July 1999 3550 A2 GB20 40...
Page 101: ...DSU Menu A 3 3550 A2 GB20 40 July 1999...
Page 108: ...COMSPHERE 3550 Series Data Service Units B 6 July 1999 3550 A2 GB20 40...
Page 122: ...COMSPHERE 3550 Series Data Service Units C 14 July 1999 3550 A2 GB20 40...
Page 129: ...Pin Assignments D 7 3550 A2 GB20 40 July 1999 Figure D 5 EIA 232 D Crossover Cable 4951 035F...
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