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The H.110 Basic Rate ISDN Board
6.0 THE H.110 BUS & CLOCK MODES .............................. 6-1
6.1 The H.110 Bus ...................................... 6-1
6.2 Clock Modes .......................................6-2
6.2.1 Slave Mode .................................. 6-3
6.2.2 Primary Master Mode .......................... 6-3
6.2.3 Secondary Master Mode ........................ 6-4
6.2.4 Clock Fallback ................................ 6-5
6.2.5 Clock Errors .................................. 6-5
6.3 Configuration Information .............................6-6
6.4 Hot Swap .......................................... 6-6
7.0 LAYER 1 & LAYER 2 PROTOCOLS ............................... 7-1
7.1 Layer 1 ............................................ 7-1
7.2 Layer 2 ............................................ 7-3
7.3 Layer 1 & Layer 2 States .............................. 7-5
7.4 TEI Management .................................... 7-6
7.5 The Packet Data Link ................................. 7-9
7.6 Sending and Receiving Layer 3 Messages ................7-10
8.0 USING “D” MESSAGES FOR LAYER 3 ............................. 8-1
8.1 Q.931 Messages ..................................... 8-1
8.2 “D” Command & Response Messages .................... 8-2
8.3 Information Elements ................................. 8-5
8.3.1 Bearer Capability .............................. 8-5
8.3.2 Cause ....................................... 8-5
8.3.3 Directory Numbers ............................. 8-7
8.3.4 Feature Keys & Indicator Status .................. 8-7
8.3.5 Progress Indicator ............................. 8-8
8.3.6 Signal ....................................... 8-8
8.4 SPIDs & Endpoint Identifiers .......................... 8-9
8.5 Directory Numbers .................................. 8-11
8.6 Display Text .......................................8-11
8.7 NT Call Handling Examples .......................... 8-12
8.7.1 A Call Terminating at a Terminal ................ 8-12
8.7.2 A Terminal Originating a Call ................... 8-13