Section 150-612-102
Revision 03
Page 5
7.03
The HRU-612 typically dissipates 6 watts of
power and may consume up to 8 watts
when feeding 60 mA. of simplex current to the CI.
7.04
The worst case -48V power consumption by
a HiGain-2 system from the CO is 18 watts
per DS1 service.
7.05
A 9-pin (RS-232) DB-9 connector,
configured as DCE (see Figure 3), is
provided on the front panel of the HRU-612. This
provides access to the monitoring features of
HiGain-2’s maintenance, provisioning and
performance monitoring interface. A very basic
interface is available via a ‘dumb terminal’. Figures
7 through 13 show the menu selections that are
available from the terminal. Table 3 defines the
various terms used in the screen displays. The port
is configured as DCE with 8 data bits, 1 stop bit and
no parity. Striking the SPACE bar several times
invokes autobaud from 1200 to 9600 baud. Note
that if the RS-232 port in an HRE-421 is used to
access the HRU-612, a null modem must be used
since the HRE-421 is configured as DTE .
7.06
The HRU-612 provides embedded status
monitoring functions that are accessed via
the RS-232 port. A main menu, shown in Figure 7,
is presented when a terminal is connected as
described in the previous paragraph. Figures 7-13
illustrate the displays provided from the terminal
port. Information displayed shows the status of the
HLU at the distant end of the VHDSL spans as well
as the HRU-612. The HLU shares its status with the
HRU-612 via the embedded operations channel so
there is no need to physically connect to the distant
end for its status.
Figure 2. HRU-612 List 2 Block Diagram.