Installation - ADC HiGain HRU-402 List 4F Quick Installation

I
NSTALLATION
1 Set the RCV LEV and TLOS LB configuration switches located on the front
panel. These switches set the DS1 receive line buildout level toward the Customer
Interface (CI).
0
RCV
LEV
-15
TLOS ENA
LB
DIS
2 Set the S1 switches (SCURR and LPWR) adjacent to the card-edge connector.
SCURR Disable
(up position)
Enable
(down position)
LPWR Line power
(up position)
Local power
(down position)
HRU-402
Sets the DS1 receive level toward the CI to 0 dB (default setting).
Sets the DS1 receive level toward the CI to -15 dB.
Enables the TLOS loopback option. The TLOS message displays on the HLU
when the HRU is in a logic loopback state caused by a loss of its T1 input from
the CI.
Disables the TLOS loopback option.
Disables the flow of simplex sealing current towards the upstream unit.
Enables the flow of simplex sealing current towards the upstream unit
(default setting). Simplexed sealing current is polarity-sensitive and does
not flow if the HDSL loops adjacent to the HRU are reversed.
Configures HRU to receive power from the upstream line unit over the
HDSL pairs.
Configures the HRU to receive power from a local -48 Vdc supply (default
setting). If local power is not present, the HRU reverts to line power mode.
H R
H iG
U -4
a in
0 2
R E
M
U N
IT
L
4
A L
M
H
D
S L P
L 1
L P
2
E S
F
S F
B 8
Z S
A M
I
D
L B
S K
1
R C
V
L E
V
0
-1 5
T L D IS
O S
L B
E N
X M
T
B R
G
R C
V
R S
-2 3
D C 2
E
RCV
LEV
TLOS
LB
RCV LEV AND TLOS LB Switches
Up Down
Remote enclosure
0 -15
RCV LEV (Switch 1)
TLOS LB (Switch 2)
DIS EN
Continued