ADC HRU-419 HiGain, User Manual

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150-419-100-03> Applications
HRU-419 List 1 September 25, 1998 5
Table 2. HRU-419 Front Panel Components
Name Function
LOS LEDs Show Loss of Signal (LOS) alarm states (see Table 3 on page 6 and
Table 4 on page 7 ).
Loopback
LEDs Show loopback states (see Table 3 on page 6 and
Table 4 on page 7 ).
Loopback
button Provides the ability to perform loopback test procedures (see “Using the
Loopback (LB) Button” on page 46 .
Code
LEDs Provide indications for line code options (see Table 3 on page 6 and
Table 4 on page 7 ).
Framing
LEDs Provides indications for framing patterns (see Table 3 on page 6 and
Table 4 on page 7 ).
HDSL
LEDs Display HDSL Loop 1 and Loop 2 Conditions (see Table 3 on page 6 and
Table 4 on page 7 ).
Card
Handle Used to insert and remove the HRU-419 from the card shelf.
RS-232
Craft port Configured as data circuit-terminating equipment (DCE) which allows you
to control the HRU-419 through a maintenance terminal (or a PC with
terminal emulation software).