ZyXEL Communications Multi-service Access Platform MSAP2000 - Manual (Page 226)

10. System Power and Operation Environment
MSAP2000 Technical Manual V3.0 10-1
10. System Power and Operation
Environment
10.1. System Power
COT
MSAP2000’s COT uses DC Power, with an Input Voltage of -36V to
-72V (nominal -48V)
RT
MSAP2000’s RT uses DC or AC Power, with the following
specifications:
„ DC Input Voltage -36V to -72V (nominal -48V)
When MSAP2000 is installed within location where DC is distributed
through the PDU, it can be powered directly by the DC voltage.
„ AC Input Voltage
(1) 110
±10 V(nominal 110V), 60±3 Hz
(2) 220
±10 V(nominal 220V), 60±3 Hz
When DC is not available, it is required to use SMR (Switching Mode
Rectifier) to provide the DC voltage and charging the batteries.
MSAP2000 can work even the AC power failure for at least 8 hours
with proper selection of the battery. The SMR also prevent the
batteries from over-discharging. When the DC voltage drops under
the critical point (-41 Volts
± 1 Volt), the RT will automatically
execute power cut-off, to protect the batteries from over-current
damage.
The batteries are airtight, water-free, maintenance-free, and
fully-charged for standby. The batteries are kept at float-charge
status during normal use.
CPE:
GSH-R
xDSL CPE
ONU
AC Input Voltage: (User specified from the following three options)
(1) 110
±10V (nominal 110), 60±3Hz
(2) 220
±10 V(nominal 220V), 60±3 Hz
(3) 90 ~ 245 V, 50/60Hz.
NMS System
Workstation
AC Input Voltage: (User specified from the following three options)
(1) 110
±10V (nominal 110V), 60±3Hz
(2) 220
±10 V(nominal 220V), 60±3 Hz
(3) 90 ~ 245 V, 50/60Hz.