Hitachi GR2000 manual Power Supply Unit POW, CPU Fan, Main Storage Card MS, Flash Memory Card MC

GR2000 Installation Guide

2.4.5Power Supply Unit (POW)

The POW receives externally-sourced input power and generates stable direct voltage current (5V, 3.3V, 12V, and 24V) for the router. For input power, GR2000-2S and GR2000-4S can receive 100 or 200 VAC (50/60 Hz); GR2000-6H and GR2000-10H can receive 100 or 200 VAC (50/60 Hz), or –48 or –60 VDC if DC input power option is installed; GR2000-20H can receive 200 VAC (50/60 Hz), or –48 or –60 VDC if DC input power option is installed.

In any power supply that is duplicable, the external power supply cables are independent, thus duplication is possible in the external power supply system. For the configuration of each power supply module, please refer to the "Facility plan".

The power supply configuration and specific POW model name vary depending on the GR2000 models as shown below.

Table 2-6 PS model name for each device

Device cabinet	Power	PS model name	Duplication
	supply type
GR2000-2S	AC100V	PS is built in cabinet.
GR2000-4S	AC100V	POW-S100S	Duplication by using two POW-S100S.
GR2000-6H	AC100V	POW-H100H	Duplication by using two POW-H100H.
	DC-48V	POW-HDCH	Duplication by using two POW-HDCH.
GR2000-10H	AC100V	POW-M100H	--
		POW-M100HA	Redundancy mechanism for POW-M100H
	AC200V	POW-M200H	--
		POW-M200HA	Redundancy mechanism for POW-M200H
	DC-48V	POW-MDCH	--
		POW-MDCHA	Redundancy mechanism for POW-MDCH
GR2000-20H	AC200V	POW-L200H	--
		POW-L200HA	Redundancy mechanism for POW-L200H
	DC-48V	POW-LDCH	--
		POW-LDCHA	Redundancy mechanism for POW-LDCH

2.4.6CPU Fan

The CPU fan, located on the RM-CPU board of the BCU has a life expectancy of 100,000 hours of operation.

2.4.7Main Storage Card (MS)

The router uses two different capacities of memory cards: the MS64 with 64 MB is used on the BCU and RP, while the MS128 with 128 MB on the BCU only.

2.4.8Flash Memory Card (MC)

The router uses two different capacities of flash memory cards: 30 MB MC30 and 64 MB MC64. Either card stores the software, configuration files, and log information.

2-36	GR2K-GA-1002
	Rev 6.03