GarrettCom 6K8 User Manual download pdf (Page 72)

Magnum 6K8-Series Industrial Field Switch Installation and User Guide (04/07)

Figure C5.0: -48VDC, wiring connections to the External Terminal Block on a

Magnum 6K8 -48VDC

e it

s to operate on -48VDC power. Such companies include regular

s. In addition, many high availability equipment services,

applications are mainly in the Industrial environment,

s Managed Switch is

down lead posts.

The power term loating

Always use a voltmeter

The –48VDC solution is particularly useful in the telecommunication industry, wher

is common for facilitie

and wireless telephone service providers, Internet Service Providers (ISPs) and other

communication companie

such as broadcasters, publishers, newspaper operations, brokerage firms and other

facilities often use a battery backup system to maintain operations in the event of a pow

failure. It is also frequently used for computer system backup, management and

operations monitoring equipment.

The 24V and 125VDC options are particularly useful in the Industrial environment,

where it is common for facilities to operate on 24VDC or 125VDC power. The 125VDC

options are mainly used in power utilities, such as electrical substations, electrical

enerating plants, etc. The 24VDC g

such as factory floor, HVAC equipment, military equipment, etc. The 5VDC options a

mainly used for military or Industrial factory floor applications.

B4.0 6K8-SERIES, -48V, 24, 125 OR 5VDC INSTALLATION

This section describes the proper connection of the -48VDC leads (or

24VDC/125VDC/5VDC leads) to the DC power terminal block on the Magnum 6K8-

eries Switch. The DC terminal block on the Magnum 6K8-SerieS

located on the left front of the unit and is equipped with three (3) screw-

inals are identified as positive (+) and negative (-), and they are f

inside the unit so that the user if desired may ground either. The chassis is “earth”

ground.

The connection procedure is straightforward. Simply insert the DC leads to the

Switch’s power terminals, positive (+) and negative (-) screws. Ensure that each lead is

securely tightened.

NOTE:

to measure the voltage of the incoming power supply

oked up at the last.

and figure out the +ve potential lead or -ve potential lead. The more +ve potential lead

will connect to the post-labeled “+ve” and the rest to the “-ve”. The GND can be

When power is applied, the green PWR LED will illuminate.

Note: The GND should be hooked up first. The 6K8-Series unit has a floating ground,

so the user may elect to Ground either + or = terminal to suit the customer’s use.

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