Installation guide

SZ-DOC-W5-1.pdf LTU/NTU
Version: 1.5 Operating Manual
vii Revision: 2002-09-10
3.4.8 Clock Polarity ...............................................................................................22
3.4.9 Byte Timing..................................................................................................22
3.4.10 Multiservice / nx64 Clock Modes......................................................................22
3.4.11 Clock Direction..............................................................................................23
3.5 Time Slot Mapping........................................................................................................23
3.5.1 E1 to frE1 Time Slot Mapping...........................................................................23
3.5.2 nx64 kbit/s to nx64 kbit/s Time Slot Mapping......................................................24
3.5.3 E1 to nx64 kbit/s/Ethernet Time Slot Mapping.....................................................24
3.5.4 E1 to E1 & nx64 kbit/s Multiservice Time Slot Mapping.........................................25
3.5.5 Time Slot Mapping Overview ...........................................................................25
3.6 TMN Interface (Minirack LTU only)....................................................................................26
3.6.1 TIA/EIA-485 4-wire Bus..................................................................................26
3.6.2 TIA/EIA-485 2-wire Bus..................................................................................27
3.6.3 TIA/EIA-485 Bus Termination...........................................................................28
4 Performance Monitoring........................................................................................................................31
4.1 Noise Margin SNR.........................................................................................................31
4.2 G.826 Performance Monitoring........................................................................................31
4.2.1 DSL Interface................................................................................................31
4.2.2 E1 Interface..................................................................................................32
4.2.3 ISDN PRA Interface........................................................................................33
5Alarms...................................................................................................................................................35
5.1 LEDs..........................................................................................................................35
5.1.1 Status LEDs..................................................................................................35
5.1.2 Alarm Conditions...........................................................................................36
5.2 Alarm Relays ...............................................................................................................37
5.2.1 LTU ............................................................................................................37
5.2.2 NTU............................................................................................................38
5.3 Alarm Display in Monitor Menus.......................................................................................38
6 Power Concept......................................................................................................................................39
6.1 LTU............................................................................................................................39
6.1.1 Power and Grounding.....................................................................................39
6.2 NTU ...........................................................................................................................39
6.2.1 Power and Grounding.....................................................................................39
6.2.2 Power Failure Alarm.......................................................................................40
6.3 Remote Powering .........................................................................................................40
7 Monitor .................................................................................................................................................42
7.1 General.......................................................................................................................42
7.2 Addressing..................................................................................................................42
7.2.1 LTU ............................................................................................................42
7.2.2 LTU Minirack................................................................................................44
7.2.3 NTU............................................................................................................44
7.3 Structure and Organization .............................................................................................45
7.3.1 Available Shortcuts for Commands....................................................................46
7.3.2 Performance Management PM.........................................................................46