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Watson 5 Ethernet
Operating Manual
W5-Ethernet-Manual.doc
Version 2.0-01
3-6 Revision: 2006-04-27
The physical DSL synchronization rate per pair is
[]
)/./(
)(
/
EOCskbitincludingskbitOverheadSHDSLOH
timeslotsofnumbern
skbitOHnSyncrate
238
893
64
=
=
+×=
L
Note: n = 3 … 36 for the Watson 5 Ethernet tabletop modem
The sync rate determines the DSL reach. Decreasing the sync rate increases DSL reach and vice
versa. The linerate rate has no influence on the DSL reach.
3.1.2 Multipair operation
Watson 5 Ethernet modems support multipair operation (m-wire mode). This allows for bandwidth
aggregation of individual DSL wire pairs for higher speeds or increased reach at a given speed.
A multipair DSL link is called a span. Each wire pair of a span must be configured with the same
linerate. If one pair of an m-wire span fails then the entire span must be restarted.
The following naming conventions are used in multipair operation on the Watson 5 Ethernet plugin:
! DSL spans are named DSL1, DSL2, DSL3 and DSL4. A span can consist of one or several
wire pairs. The number of DSL spans available on a plugin depends on the plugin configuration
(Monitor command CARDMODE).
! Wire pairs within a span are named A, B, C and D. Depending on the number of wire pairs
within a span the wire pairs B, C or D might not exist.
! Physical wire pairs available at the plugin DSL connector are named a, b, c and d.
Depending of the operation mode of the Watson 5 Ethernet plugin (which is set by the Monitor com-
mand CARDMODE, cf. 7.1.1) the following combinations are possible:
CARDMODE
Spans Wire pairs Connection Points
1
DSL1
DSL2
DSL3
DSL4
A
A
A
A
a1, a2
b1, b2
c1, c2
d1, d2
2
DSL1
DSL3
A, B
A, B
a1, a2, b1, b2
c1, c2, d1, d2
3
DSL1
DSL3
DSL4
A, B
A
A
a1, a2, b1, b2
c1, c2
d1, d2
4 DSL1 A, B, C, D a1, a2, b1, b2 c1, c2, d1, d2
Table 3-1: Naming of DSL spans, pairs and connection points
- Declaration of Conformity 3
- Revision: 2006-04-27 5
- Limited Product Warranty 7
- Table of Contents 9
- Watson 5 Ethernet 11
- Operating Manual 11
- Revision: 2006-04-27 xi 11
- W5-Ethernet-Manual.doc 11
- Version 2.0-01 11
- Revision: 2006-04-27 xiii 13
- 1 Related Documents 15
- 2 Overview 17
- Figure 2-2: Campus Networks 18
- 2.3 Modem Types 19
- 2.4 Accessories 19
- 2-4 Revision: 2006-04-27 20
- 3 Modem Features 21
- 3.1.2 Multipair operation 22
- 3.1.3 Power Backoff 23
- 3.1.5 DSL Performance 23
- 3.1.6 Wetting Current 24
- 3.1.7 Master / Slave 25
- 3.1.8 DSL Clocking 25
- 3.2 Ethernet (plugin modem) 26
- 3.2.3 VLANs 27
- 3.2.4 VLAN Examples 28
- Revision: 2006-04-27 3-13 29
- 3-14 Revision: 2006-04-27 30
- 3.2.6 Stacked VLANs 31
- 3-16 Revision: 2006-04-27 32
- 3.3.1 Ethernet over DSL 33
- 3.3.2 VLAN transparency 33
- 3.3.3 Mixed mode operation 34
- 3.3.4 Cisco HDLC 34
- 3.4 Firmware update 35
- 3.5 Management 35
- 3-20 Revision: 2006-04-27 36
- Revision: 2006-04-27 3-21 37
- Tabletop 38
- Revision: 2006-04-27 3-23 39
- 3.7 Test loops 40
- 3.8 Password protection 40
- Revision: 2006-04-27 3-25 41
- 4 Powering 43
- 5 LEDs and Alarms 45
- 5.2 Tabletop LEDs 46
- 5.3 Alarm Conditions 47
- 5.4 Alarm Relays 47
- 5.5 Initialization Errors 48
- 6 The Monitor 49
- 6.2 Addressing of Plugins 50
- 6.3 Naming of ports 51
- 6.4 Telnet Access 51
- 6.5.1 Welcome Screen 52
- 6.5.2 Menus 52
- 6.5.3 Prefixes an Shortcuts 52
- 6.5.4 Tab completion 53
- 6.5.5 Help 53
- 6.5.6 Command History 53
- 6.5.7 Continuous Displays 53
- 7.1.1 General Commands 55
- 7-2 Revision: 2006-04-27 56
- Revision: 2006-04-27 7-3 57
- 7-4 Revision: 2006-04-27 58
- Revision: 2006-04-27 7-5 59
- 7-6 Revision: 2006-04-27 60
- Revision: 2006-04-27 7-7 61
- 7-8 Revision: 2006-04-27 62
- 7.1.7 VLAN Configuration 63
- 7-10 Revision: 2006-04-27 64
- Revision: 2006-04-27 7-11 65
- 7-12 Revision: 2006-04-27 66
- Revision: 2006-04-27 7-13 67
- 7-14 Revision: 2006-04-27 68
- Revision: 2006-04-27 7-15 69
- 7-16 Revision: 2006-04-27 70
- 7.2.1 Diagnostic 71
- 7.2.2 Status (Plugin) 72
- 7.2.3 Status (Tabletop) 73
- 7.2.4 Alarms 74
- Revision: 2006-04-27 7-21 75
- 7.2.5 Test loops 76
- 7.2.6 Reset Commands 76
- 7.3.1 G.826 Statistics 77
- 7.3.2 Ethernet Statistics 78
- Revision: 2006-04-27 7-25 79
- 7.4.1 Connection control 80
- 7.4.2 Inventory 80
- 7.4.3 Password 81
- 7.4.4 Firmware Upgrade 82
- Revision: 2006-04-27 7-29 83
- 8 SNMP 85
- 8.1.3 The Entity MIB 86
- 8.1.2 SNMP Configuration 86
- 8.1.4 VLAN indexing 87
- 8.2 MIB Reference 88
- 8.2.5 Entity MIB (RFC 2737) 89
- 8.2.6 RMON (RFC 2819) 89
- 8.2.7 IF MIB (RFC 2863) 89
- 8.2.11 MAU MIB (RFC 3636) 90
- 8.2.13 HDSL MIB 91
- 8.2.14 Schmid MIB 91
- 8.2.15 Watson MIB 91
- 9 Front and Rear Panels 93
- 10 Connectors and Cables 95
- 10.1.2 DSL Cable 96
- 10.2 Ethernet Interface 97
- 10.3 Monitor Interface 97
- 10.4 Power and Grounding 98
- 11.1 Interfaces 99
- 11.2 Power Consumption 100
- 11.3 Ethernet 100
- 11.4 Latency and Throughput 101
- 11.5 Management Functions 101
- 11.6 MTBF 101
- 11.7 Environment 102
- 12 Terminology 103
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