ADC HiGain HRU-402 User Manual page 16

Product Overview
Panel Circuit Board Option
HRU-402 List 1 and List 3 has user options that must be set before you install
the unit into a shelf or an enclosure. Two of these options, DS-1 RCV LVL
and TLOS, are located on the front panel. A third option, Sealing Current
(SCURR), is located at the back of the panel circuit board adjacent to the
card-edge connector as shown in
allows you to either disable or enable the current flow over the HDSL pairs
(see Table 3). The HRU-402 List 1 has a local power option to force the use
of local power or line power.
See "Simplex Sealing Current Information" on page 12
information.
S1
8
Figure
Figure 3. User Option Locations
November 5, 1998
3. The Sealing Current S1 switch
Sealing current
(SCURR)
Local power (HRU-402 List 1 only)
(LPWR)
150-402-100-03
for further
HRU-402 List 1 and List 3