52. Installing 8260 Modules in an 8260 Not Managed by DMM ........ 83
53. Installing 8250 Modules in an 8260 Managed by DMM
........... 84
54. Installing 8250 Modules in an 8260 Not Managed by DMM
........ 85
55. Messages Received when a Power Failure Occurs
............. 86
56. Using the SHOW HUB Command
........................ 87
57. Using the SHOW POWER MODE Command
................. 87
58. Messages Received when the Power Mode Is Changed
.......... 88
59. Messages Received upon a Recovery of the Power Supply
........ 88
60. 8260 Fan Units
................................... 91
61. Output from Show Hub Command
....................... 92
62. Output from Show Power Mode Command
.................. 93
63. 8260 Cooling Zones and Power Classes
................... 94
64. Flow Chart for an Overheat Condition
..................... 95
65. Front View of 24-Port 10Base-T Module
................... 101
66. 24-Port 10Base-T Module Side View
..................... 102
67. 24-Port 10Base-T DIP Switches
........................ 103
68. 24-Port 10Base-T Module Usage
....................... 104
69. Front View of 20/40-Port 10Base-T Modules
................ 108
70. 20/40-Port 10Base-T Module Side View
................... 109
71. 20/40-Port 10Base-T DIP Switches
...................... 110
72. Front View of 10-Port 10Base-FB Module
.................. 115
73. 10-Port 10Base-FB Module Side View
.................... 116
74. 10-Port 10Base-FB DIP Switches
....................... 117
75. 10-Port 10Base-FB Module Usage
...................... 118
76. Configuring Port Redundancy for 8260 Ethernet Modules
........ 119
77. Default Security Settings
............................ 124
78. Network Security Address Table
....................... 125
79. Ethernet Security Intruder Table
....................... 127
80. Differential Manchester Coding
........................ 132
81. Self-Shorting Relays on the ShuntBus
.................... 135
82. 8260 Backplane Signalling for 4 Mbps Operation
............. 136
83. 8260 Backplane Signalling for 16 Mbps Operation
............ 137
84. Components of Dual Phase Lock Loop
................... 139
85. DPLL Implementation on Active Ports
.................... 140
86. Components of DPLL Implemented on JADC
............... 141
87. Token-Ring Per-Port Switching
........................ 144
88. Static Switch Display for Active Per-Port Switching Ports
........ 146
89. Switching Ports with Enabled Static Switch
................ 147
90. Port Switching with Source Routing Bridges
................ 148
91. Port Display for Token-Ring Passive Ports
................. 150
92. Show Device Command for TRMM
..................... 154
93. Recovery ASIC in Module Switching Module
................ 155
94. Recovery ASIC in Per-Port Switching Module
............... 156
95. Display Output for 20-Port Passive Module
................. 156
96. Display Output for 18-Port Active Per-Port Switching Module
...... 157
97. Beacon Recovery on the Module Switching Modules
.......... 159
98. Address-to-Port Map Display for a Module Switching Module
..... 161
99. Address-to-port Mapping on Module Switching Modules for Fan-Out
Attached Devices
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
100. Address-to-Port Map Display for Fan-Out Attached Devices
...... 163
101. Address-to-Port Map Display for MAC-less Stations
........... 164
102. Address-to-Port Mapping on Per-Port Switching Modules
........ 164
103. Address-to-Port Map Display for a Per-Port Switching Module
..... 166
104. Dual-Ring Topology
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
105. Wrapback in Dual-Ring Topology
....................... 168
x 8260 Multiprotocol Intelligent Switching Hub