Microwave Data Systems MDS entraNET 2400 Especificaciones Pagina 171
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Valorado. / 5. Basado en revisión del cliente
05-4055A01, Rev. D GE MDS entraNET Reference Manual 161
• The number of bytes they can fit into a hop, depending on hop
time, is:
Included in the byte count is 9 bytes of overhead per packet. So,
at 7MS without FEC, a 1000 byte packet requires 1009 bytes
split into 45 bytes/hop, or 23 hops. 1026 bytes of data also
requires 23 hops; however, a 1027-byte data packet requires 24
hops.
• If any transceiver in your network is connected to a large LAN,
such as may be found in a large office complex, there may be
undesired multicast or broadcast traffic over the air.
3. Station-to-Station Traffic
• When sending frames from one remote endpoint to another
remote endpoint via an AP transceiver (see Figure 6-7),
throughput is halved at best. This is because all frames must go
through the AP. Therefore, in the previous 100 byte UDP exam-
ple, the number of over-the-air bytes is 380 bytes (190 bytes
times 2) if the frame has to go station to station.
Invisible place holder
Figure 6-7. Endpoint-to-Endpoint Communication via an AP
4. Interference has a direct correlation to throughput.
• Interference could be caused by any unnecessary traffic on the
network from unrelated activities, or radio interference.
Table 6-1. Number of bytes per hop
Hop time
(MS) FEC Bytes/hop
745
7FEC11
14 139
14 FEC 59
28 324
28 FEC 151
Message Source
192.168.0.50
RTU
192.168
RTU
Terminal
or Computer
192.168.0.10
192.168.0.1
L
A
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1
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2
P
W
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IN
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1
P
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Access Point
Remote
Remote
Message Desti
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- MDS entraNET 1
- Quick Start Instructions 2
- TABLE OF CONTENTS 3
- RF Exposure 9
- INTRODUCING THE 11
- GE MDS entraNET SYSTEM 11
- 1.1 ABOUT THIS MANUAL 13
- 1.2 PRODUCT DESCRIPTION 13
- 1.3 APPLICATIONS 16
- Serial Interfaces 19
- Configuration 19
- 1.4 GE MDS SECURITY SUITE 20
- 1.5 ACCESSORIES 22
- Table 1-3. Accessories 23
- TABLETOP SETUP AND 25
- EVALUATION 25
- 2.1 INTRODUCTION 27
- 2.2 CONNECTOR OVERVIEW 27
- 2.3 TEST SETUP 28
- Main Menu > 29
- POSSIBLE 30
- EQUIPMENT 30
- COM1 port on the radio 31
- Telnet Connection 32
- Using the AP LAN 32
- Port (a valid IP 32
- PC Running Terminal Session 34
- (19,200 bps, 8N1) 34
- ETH=ON command to enable the 35
- Figure 2-7. PING Test Setup 36
- Serial Connections 37
- AP MANAGEMENT 39
- 3.1 INTRODUCTION 41
- 3.1.2 Menu Structure 42
- Invisible place holder 43
- (a Telnet session is similar) 45
- 3.2.1 Methods of Control 46
- To COM1 or LAN Port 47
- (See Text) 47
- Serial or Ethernet 47
- Crossover Cable 47
- Starting a Telnet 48
- COM 1 port and viewing the 49
- Starting a Web 50
- Browser Session 50
- 3.2.3 Navigating the Menus 52
- 3.3 BASIC DEVICE INFORMATION 53
- 3.3.2 Main Menu 54
- 3.4 CONFIGURING NETWORK 55
- PARAMETERS 55
- 3.4.2 IP Configuration Menu 56
- 3.5 CONFIGURING RADIO 62
- Figure 3-20. Skip Zones Menu 63
- 3.6 CONFIGURING THE SERIAL 64
- INTERFACES 64
- Commit Changes option to 66
- (Host Connection screen) 68
- SHIFT ENTER 69
- COM1 or COM2). [COM1 70
- COM port in 70
- (IP-to-Remote Serial) 72
- 3.7 SECURITY CONFIGURATION 74
- OFF prior to upgrading 75
- 3.8 WIRELESS NETWORK MENU 79
- 3.8.1 Remote Management Menu 80
- Broadcast 83
- [0-15; 0] 85
- 3.9 STATISTICS AND EVENT LOG 87
- COM1 and COM2 ports 88
- 3.9.5 Event Log Menu 92
- 3.10 DEVICE INFORMATION MENU 94
- 3.11 MAINTENANCE AND TOOLS 95
- 3.11.1 Reprogramming Menu 96
- PING Utility Menu 100
- 3.11.5 Transmitter Test Menu 102
- 3.12 REDUNDANCY MENU 103
- 3.13 DNP3 ROUTING MENU 107
- REMOTE RADIO 109
- MANAGEMENT 109
- 4.1 INTRODUCTION 111
- 4.2 Programming Methods 111
- 4.3 Log-in Procedure 111
- 4.4 Commands 112
- SPACE ENTER 112
- COM1 port buffer size 114
- COM1 port default mode on 114
- COM2 port data characters 117
- COM port 125
- COM1 packet statistics 126
- COM2 packet statistics 126
- 4.6 UPGRADING REMOTE FIRMWARE 127
- CONFIGURATIONS 129
- 5.1 INTRODUCTION 131
- Access Point 132
- Application Example 133
- G to display the Main Menu 134
- Figure 5-5. Main Menu 135
- A to select “Serial” 136
- A to select “One Remote” 137
- N to continue 137
- Figure 5-14. Enable Port 140
- X to commit the 141
- Figure 5-18. Main Menu 143
- Then press D to continue 144
- (broadcast) 145
- Figure 5-26. Enable Port 148
- N as many times 149
- 5.6.1 Operation and Data Flow 150
- Remote 1 151
- Remote 2 151
- Remote 3 151
- Remote 4 151
- 2. Select A to choose TCP 152
- Figure 5-33. IP Port Settings 153
- Figure 5-35. Group ID 1 154
- Figure 5-37. Confirm Changes 155
- INSTALLATION 157
- LOW-LOSS FEEDLINE 159
- COM1 port. See “Aiming 160
- DIN Rail Mounting 162
- (mounted to mast) 164
- High-gain Type 164
- Unity-gain Type 164
- (RG-214 coaxial cable) 165
- BE USED? 166
- (Antenna Gain in dBi* 167
- (in dBm) 167
- (in dBi) 169
- 6.5 OPTIMIZING PERFORMANCE 170
- LINK LED 172
- TROUBLESHOOTING 175
- AND RADIO TESTS 175
- 7.1 TROUBLESHOOTING 177
- Management System 178
- TECHNICAL REFERENCE 187
- 8.1 UPGRADING AP FIRMWARE 189
- & TELNET 190
- COM1 and COM2 192
- 8.3 DATA INTERFACE CONNECTORS 197
- 8.3.2 COM1 Port 198
- 8.4 TECHNICAL SPECIFICATIONS 199
- RADIO CHARACTERISTICS 200
- PHYSICAL INTERFACE 200
- DATA CHARACTERISTICS 200
- TRANSCEIVER MANAGEMENT 201
- ENVIRONMENTAL 201
- MECHANICAL 202
- AGENCY APPROVALS 202
- TERMS AND 205
- ABBREVIATIONS 205
- IN CASE OF DIFFICULTY 219
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