Alarm Connections; Figure 4. 3192 Htu-C Span Power Diagram; Table 8. 3192 Htu-C Alarm Connections - ADTRAN HDSL 3192 HTU-C Installation And Maintenance Practice

HDSL 3192 HTU-C Installation and Maintenance Practice
The span powering voltage is –190 volts with Loop 1 providing the negative voltage and Loop 2
the return (see Figure
2B1Q HDSL

Alarm Connections

The following alarm signals are connected to the 3192 Alarm Module.
Alarm processing is actually performed by the 3192 Alarm Module. Refer to the 3192 Alarm
Module documentation for further information.
Alarm conditions are not reported at the 3192 HTU-C until the HDSL circuit is terminated by
connecting an HTU-R. This allows circuit pre-provisioning. Once the 3192 HTU-C is termi-
nated with an HTU-R, the 3192 HTU-C goes into an in-service state.
12
4).
Span Power Regulator

Figure 4. 3192 HTU-C Span Power Diagram

Table 8. 3192 HTU-C Alarm Connections

Pin Label
H RCV LOS
10 FUSE ALARM
Loop 1
Span Current
Loop 2
Function
Loss of Signal Alarm
Fuse Alarm of –48V Supply
T (K)
R (9)
T1 (F)
R1 (6)
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