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Multiserver 5000
26
3.1 Initial Considerations
The Multiserver 5000 offers the ability to connect
one of the following units and their associated links:
• Multiserver (1000 or 5000) via an Interconnect
Link.
• Feeder Mux (Communication Box II or Statplex
Multiplexor) via a Mux Link or an X.21 Link
The interconnect link can be connected using the
integral MS1 56K CSU/DSU module. Any of the
links can be connected using an external ISU or
modem. If the external devices are not
RS-232, the appropriate converters are required.
The Multiserver 5000 supports four types of
network topologies:
• Point-to-point
• String
• Star
• Distributed Star
Utilizing these topologies, the Multiserver 5000 can
serve as either a terminated node (traffic is
terminated in, or attached to the local node) or a
switching hub (no local attached devices). Without
local traffic (data/voice/LAN), the Multiserver’s
link capacity increases.
There are three elements to be considered when
putting together a Multiserver 5000 network:
• Channel Performance
Burst 288 Kbps
• Link Capacity
Terminated 72 Kbps
Switched 192 Kbps
• Delay (varies Do not exceed six link
between channel hops in any network
type and protocol) path (6 node hops)
Important
You cannot have a closed loop in a
Multiserver network.
When designing a Multiserver network, it helps to
keep in mind the different capabilities of the
Multiserver 1000 and Multiserver 5000. A summary
of these are detailed in Table 3-1.
3. Network Design and Topologies
Table 3-1. Comparison of the Multiserver 1000 and the Multiserver 5000
Multiserver 1000 Multiserver 5000
Number of possible interconnect links 1 (A1) 3 (A1 to A3)
Speed: interconnect link 1.2 to 64 Kbps 1.2 to 72 Kbps
Number of possible feeder-mux links 1 (A1) 5 (A1 to A5)
Speed: feeder-mux link Up to 19.2 Kbps Up to 19.2 Kbps
Max. number of data channels 41 41
Max. number of sync data channels 1 10
Sync protocol speeds (most applications) 1.2 to 19.2 Kbps 1.2 to 38.4 Kbps
Max. number of voice/fax channels 4 8
Dual-link load balancing capability no yes
Multi-point capability no yes
- Multiserver 5000 1
- Table of Contents 10
- Table of Contents (continued) 10
- 1. Specifications 14
- Async Channel Characteristics 15
- Sync Channel Characteristics 15
- Multiserver 5000 (continued) 15
- MS1 Voice/Fax Cards 17
- General Specifications 17
- Analog Specifications 17
- CHAPTER 1: Specifications 18
- Signaling Specifications 18
- Digital Specifications 18
- MS1 56K CSU/DSU Module 19
- MS RLB Module 19
- MS1 NMS Module 20
- MS1 V.35 Converter/DCE 20
- X.21 Converter/DCE 20
- 2. Introduction 21
- CHAPTER 2: Introduction 22
- 2.2 Feeder Muxes 22
- 2.12 Manual Text Conventions 26
- Default Node Default Node 29
- Unit Number ID 29
- INGLE LINK POINT-TO-POINT 31
- DISTRIBUTED STAR 35
- 4. Base-Unit Installation 36
- Warning! 37
- Channel Numbers 39
- 5. Module Installation 42
- 5.4 Blank Back Panel 45
- 5.5 Disassembly Procedures 45
- NUMBER 1 47
- 5.6 Installation Procedures 49
- DIMPLES ON TOP OF BACK PANEL 51
- BLANK BACK PANEL 51
- NSTALLING CONVERTERS 53
- EMOVING CONVERTERS 53
- 6. Getting Started 54
- CHAPTER 6: Getting Started 55
- 6.3 The Command Facility 55
- 6.4 Reset Defaults 57
- 6.5 Name the Local Node 58
- 6.6 Quick Setup 60
- 1 2 3 4 5 6 7 8 9 10 11 1212 63
- EZ423 EZ423 65
- Crossover Cable 65
- 7.4 The Sync Data Channel 66
- (DTE, DB25) 67
- MS RLB COMMPAK 69
- Local Multiserver 69
- Remote Multiserver 69
- 7.6 Testing the RLB Module 70
- 7.7 Voice/Fax Channels 71
- 8.1 Types of Links 72
- 8.2 Avoid Node Duplication 72
- CHAPTER 8: Link Configuration 75
- 9. Data-Channel Configuration 84
- ONTROL SIGNALS 87
- Protocol Data Rate (bps) 91
- Multiserver DTE 93
- Constant Controlled 93
- 9.3 Asynchronous Channels 95
- Option Default Description 101
- 9.4 Copy Channel Parameters 104
- 10. Switching Configuration 108
- Option Description 109
- Important! 111
- 10.4 Synchronous Connections 113
- ODE/CLASS CONNECTION 115
- ATRIX CONNECTION 115
- Channels 116
- Parameters 117
- 10.8 Classes 120
- Async Channel 131
- 11. Administration 132
- CHAPTER 11: Administration 133
- Table 11-1. Reset Options 134
- 11.2 The Command Mode 135
- Table 11-2. The Command Mode 136
- 11.4 Messages 142
- Table 11-5. Dialog Messages 144
- 11.5 Network Security 146
- 11.6 Status/Statistics 148
- 11.7 Link Administration 156
- 11.8 Channel Administration 156
- 12. Diagnostics 159
- CHAPTER 12: Diagnostics 161
- Facility 161
- 12.5 Testing the Network 165
- 13. LCD/Keypad 167
- LCD/Keyboard Menu Flow Chart 169
- 13.2 Banner Message Display 170
- CHAPTER 13: LCD/Keypad 171
- 13.4 Menu Functions 171
- 13.5 Administration 171
- Important 172
- 13.7 Configuration 176
- Appendix A: Worksheets 177
- Display Messages Worksheet 190
- Record of Passwords 192
- Appendix B: Cabling Diagrams 193
- LEAVE A1 EMPTY 206
- RJ-48 CONNECTOR 206
- RJ-48 AT BOTH ENDS 206
- OF CABLE 206
- Cabling for the NMS Module 207
- (RS-232) 208
- CONVERTER 208
- (EHN071-005M) 210
- Cabling for Use with Tandem 212
- Appendix C: Defaults 213
- Voice/Fax Module 220
- Voice/Fax Module (continued) 221
- NMS Module 222
- Appendix D: Messages 223
- Screen Display Messages 224
- LCD Messages 236
- Appendix E: Indicators 241
- HP ENQ/ACK 247
- Table F-1. Spool Mode 248
- TOP VIEW 249
- MULTISERVER 5000 250
- Glossary 254
- Review System Message Log 266
- Menu Functions (password) 266
- Menu Flow Diagram 267
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