HDSL 3192 HTU-C Installation and Maintenance Practice
12
61247004L1-5A
The span powering voltage is –190 volts with Loop 1 providing the negative voltage and Loop 2
the return (see
Figure 4. 3192 HTU-C Span Power Diagram
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.
Table 8. 3192 HTU-C Alarm Connections
Pin
Label
Function
H
RCV LOS
Loss of Signal Alarm
10
FUSE ALARM
Fuse Alarm of –48V Supply
Span Power Regulator
2B1Q HDSL
Loop 1
Loop 2
T (K)
R (9)
T1 (F)
R1 (6)
Span Current
