User manual

Chapter 8. Power Loss Recovery
61185001L1-1 MX2810 M13 User Manual 8-5
BATTERY BACKUP MODE
With the installation of the ADTRAN Power Supply/Battery
Charger (PS/BC) and backup battery pack, the MX2810 is able to
continue operation without service interruption in the event of a
power outage. This PS/BC (P/N 4175043L10) provides -48 VDC to
the MX2810. It receives 115 VAC through a standard plug and wall
socket.
The PS/BC maintains the battery at peak charge (-48 V) at all times.
If AC power is lost, the unit automatically transfers power to the
battery without interrupting service. When AC power returns, the
unit switches back to AC power and recharges the battery. For
installation instructions, refer to the guide provided with the
PS/BC. See Figure 8-4 for an illustration of this setup.
.
Figure 8-4. Battery Backup System
The MX2810 can operate on a fully-charged battery for four hours
without recharging.
–48 , 1A
USE COPPER CONDUCTORS ONLY
–48
RET
R12
P2
U4
P3
DC POWER
NTWK MGMT
–48VA –48V
RET
–48
RET
–48VB
DSX-1(OUT)
T1/R1
DSX-1(IN)
T/R
A
DSX-3
C
NO
C
NO
C
NO
C
R
I
M
A
J
M
I
N
E-NET
OUTIN
B
DSX-3
CLK
A
+
–
S
CLK
B
+
–
S
RS
485
A
B
Black
Green
Red
Red -48V A or B
Black -48 RET
Green
MX2810
Battery Charger
Power Cable
Magnified View
-48 VDC
Backup Battery Pack
P/N 1175044L1
AC Power Input
AC/DC Power Supply
Battery Charging Unit
P/N 1175043L2
DC POWER
–48VA
–48
RET
–48VB