Bosch Appliances DVA-12T installation manual 4Controller Module Interfaces, Dimm Module, 6BBU

12 en IntroductionRAID Subsystem DVA-12T Installation Manual

2.3.4Controller Module Interfaces

All external interfaces that connect to external devices are located on the controller module rear panel shown below. The interfaces are listed below.

Fig. 2.9 Controller Module Interfaces – 2-port version

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Host ports: Two (2) Gigabit Ethernet host ports (simulated and

indicated as CH0 and CH1 in the diagram shown above) connect the RAID subsystem to the networked iSCSI initiators through two (2) RJ-45 connectors.

COM port: The controller module comes with one (1) COM port. This port is used for local access to the firmware embedded configuration utility from a management computer.

LED indicators: Five (5) LED indicators illustrate the system

statuses for system monitoring. Please see Section 4 Subsystem Monitoring for more information.

Hand screws: Two (2) hand screws located in the sides of the controller rear panel pro- vide easy controller module installation and secure the controller module in place.

2.3.5	DIMM Module
	The controller module comes with a preinstalled 1 GB capacity or above DDR RAM DIMM mod-
	ule. The DIMM module is placed in an easily accessed location on the controller board. How-
	ever, when the DIMM module is being changed, the controller module must be removed from
	the subsystem chassis.

2.3.6BBU

An Li-ION battery backup unit (BBU) module (see Figure 2.10) can sustain cache memory for days after a power failure. If you purchased a BBU, it will be installed on the upper left side of the controller module in the rear of subsystem chassis.

Fig. 2.10 BBU Module

In accordance with international transportation regulations, the BBU module is only charged to between 35% and 45% of its total capacity when shipped. Therefore, when powering on the subsystem for the first time (see Section 5.3 Power On) the BBU will begin to charge its batter-

F.01U.027.798 V1 2006.06 Bosch Security Systems