ADTRAN HDSL2 - Manual (Page 22)

HDSL2 System Testing HDSL2 for General Distribution Installation and Maintenance Practice
12 61223HDSL2L2-5B
Provisioning Options, Total Access 3000 H2TU-C
The Total Access 3000 H2TU-C is provisioned through the SCU on the Total Access 3000
chassis. In addition to the options shown in
Table 6 on page 11, the options shown in Table 7
apply.
HDSL2 SYSTEM TESTING
The ADTRAN HDSL2 system provides the ability to monitor the status and performance of the
DSX-1 signals, DS1 signals, and HDSL2 loop signals. Detailed performance monitoring is
provided by the front panel-mounted RS-232 control port (or via the SCU RS-232 port for the
Total Access 3000). These features are valuable in troubleshooting and isolating any system
level problems that may occur at installation or during operation of the HDSL2 system.
Additional testing features are described below.
Table 7. Total Access 3000 Additional Provisioning Options
Provisioning Option Option Settings Default Settings
15. Service State
1 In Service;
Out-of-Service Unassigned;
Out-of-Service Maintenance Out-of-Service
Maintenance
16. Network Source 2 DSX, MUX A, MUX B, Auto MUX DSX
17. External Alarms Enabled, Disabled Disabled
18. Auto In Service Disabled, Enabled Enabled
19. Auto IS Startup Period 1 hour, 4 hours, 8 hours,
24 hours 4 hours
20. Auto IS Off Period 1 hour, 4 hours, 8 hours,
24 hours 8 hours
1. The Service State defaults to Out-of-Service Maintenance. This setting allows active connections to the DSX or
MUX interface; however, no alarms will be generated. Out-of-Service Unassigned allows the loops to train up
but will not connect to the DSX or MUX interface. The In Service setting allows full functioning connections to
DSX or MUX interfaces.
2. For Network Source settings, the following options apply:
• DSX-1: The module will utilize the DSX-1 interface. The Muxes will not be used, even if present.
• Mux A: The module will use Mux A as its data source. The module will not switch to Mux B in the case of a
Mux A failure. The EQ jacks can be used as a temporary test point in conjunction with the EQ jack setting
on the loopback/test screen.
• Mux B: The module will use Mux B as its data source. The module will not switch to Mux A in the case of a
Mux B failure. The EQ jacks can be used as a temporary test point in conjunction with the EQ jack setting
on the loopback/test screen.
• Auto Mux: The module will default to Mux A as its data source. In the event of a Mux A failure, the module
will perform a protection switch to Mux B if it is present and in service. The EQ jacks can be used as a
temporary test point in conjunction with the EQ jack setting on the loopback/test screen.