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Revision: 2010-01-20
2-1
2 Overview
2.1 Introduction
The Watson Ethernet modems are SHDSL transmission systems compliant to
ITU-T G.991.2 Annex B (G.SHDSL.bis) and to ETSI TS 101 524 (2006).
SHDSL uses Trellis-coded PAM-16 and PAM-32 linecodes supporting multiple li-
nerates as well as 1-pair, 2-pair and 4-pair DSL transmission.
The Watson Ethernet modems are available as plug-in cards and as tabletop
units. Both plug-in cards and tabletops can work as DSL master modems (STU-
C) and as DSL slave modems (STU-R).
The modems can be configured with an RS-232 terminal through a command
line interface (Monitor).
For remote management a Telnet access to the Monitor is available. The plug-in
modems also have an SNMP agent integrated. One agent can control all plug-in
modems in a subrack and all tabletop modems connected to the subrack mod-
ems.
2.2 Applications
Figure 2-1 shows typical deployment scenarios of Watson Ethernet to deliver
Metro Ethernet Services:
Figure 2-1: Ethernet Services
Several Ethernet plug-in cards are installed in a subrack at the central office or
the point of presence. Depending on the service offered each plug-in can serve
between one and four customers. At the customer premises either a tabletop
- Declaration of Conformity 3
- Limited Product Warranty 9
- Table of Contents 11
- 1 Related Documents 17
- 2 Overview 19
- 3 Modem Features 23
- 3.1.2 Multipair operation 24
- 3.1.4 Power Backoff 26
- 3.1.7 Wetting Current 28
- 3.1.8 Master / Slave 29
- 3.1.9 DSL Clocking 29
- 3.2.1 Ethernet over DSL 29
- 3.2.2 Ethernet Bridging 30
- 3.2.4 VLANs 31
- 3.2.5 VLAN Examples 31
- 3.2.7 Stacked VLANs 35
- 3.3.1 Ethernet over DSL 41
- 3.3.2 VLAN features 41
- 3.3.4 Cisco HDLC 42
- 3.4 Firmware update 43
- 3.5 Management 43
- DISCONNECT 45
- 3.7 Test loops 48
- 3.8 Password protection 49
- 4 Powering 51
- 5 LEDs and Alarms 53
- 5.2 Tabletop LEDs 54
- 5.3 Alarm Conditions 55
- 5.4 Alarm Relays 55
- 5.5 Initialization Errors 56
- 6 The Monitor 57
- 6.2 Addressing of Plug-ins 58
- 6.3 Naming of ports 59
- 6.4 Telnet Access 59
- 6.5.1 Welcome Screen 60
- 6.5.2 Menus 60
- 6.5.4 Tab completion 61
- 6.5.5 Help 61
- 6.5.6 Command History 61
- 6.5.7 Continuous Displays 62
- 7.1 Introduction 63
- 7.2.1 General Commands 64
- DEFAULT Configuration 66
- 7.3.1 Diagnostic 89
- 7.3.2 Status (Plug-in) 90
- 7.3.3 Status (Tabletop) 92
- 7.3.4 Alarms 93
- 7.3.5 Test loops 95
- 7.3.6 Reset Commands 95
- 7.4.1 G.826 Statistics 96
- 7.4.2 Ethernet Statistics 97
- 7.5.1 Connection control 100
- 7.5.2 Inventory 100
- 7.5.3 Password 101
- 7.5.4 Firmware Update 103
- 8 SNMP 105
- ENTITIY-MIB 106
- 8.1.3 SNMP Configuration 107
- 8.1.4 The Entity MIB 107
- 8.1.6 The ifTable 109
- 8.2 MIB Reference 110
- 8.2.5 RMON (RFC 2819) 111
- 8.2.6 IF MIB (RFC 2863) 111
- 8.2.11 MAU MIB (RFC 3636) 112
- 8.2.15 HDSL MIB 114
- 8.2.16 Schmid MIB 115
- 8.2.17 Watson MIB 115
- 9 Front and Rear Panels 117
- 10 Connectors and Cables 119
- 10.2 DSL Interface 121
- 10.2.2 DSL Cable 122
- 10.3 Ethernet Interface 123
- 10.4 Monitor Interface 123
- 10.5 Power and Grounding 124
- 11.1 Interfaces 127
- 11.2 Power Consumption 128
- 11.3 Ethernet 128
- 11.5 Management Functions 129
- 11.6 MTBF 129
- 11.7 Environment 130
- 12 Terminology 131
- 13 Product Order Codes 133
- Revision: 2010-01-20 134
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