GarrettCom 6K8 manual B2.0 -48VDC, 24VDC and 125VDC POWER, Theory of Operation, B3.0

Magnum 6K8-Series Industrial Field Switch Installation and User Guide 03/06)

power input qualifies this product for use in 24VDC, -48VDC as well as 125VDC environments. The 24VDC, -48VDC or 125VDC power input provides an Ethernet networking product utilizing a special type of power supply with a proven high- reliability record to fulfill the DC requirement.

DC Power Terminals: “+”, “-”,internally floating

GND: Terminal for “earth” or ground wire connection to the 6K8-Series chassis

Input Voltage: 18 to 36 VDC (24VDC)

Input current: 0.6Amps max.(for all RJ-45 ports)

Input current: 1.2Amps max.(for all Fiber ports)

Input Voltage: -36 to -70 VDC (-48VDC)

Input current: 0.4Amps max.(for all RJ-45 ports)

Input current: 0.7Amps max.(for all Fiber ports)

Input Voltage: 88 to 300 VDC (125VDC)

Input current: 0.1Amps max.(for all RJ-45 ports)

Input current: 0.125Amps max.(for all Fiber ports)

Power Consumption: 25 watts max., for fully loaded (fiber ports)

(24V, -48V, 125V)DC 8 watts typical for all (RJ-45 Ports)

B2.0 -48VDC, 24VDC and 125VDC POWER, THEORY OF OPERATION

The -48VDC, 24VDC and

125VDC power options are designed		POWER SWITCH		HUB
using diodes inside on each DC power			SUPPLY
	A+			+- FUSE
input line behind the two external power	A-
connection terminals, so that the power
	GND			CHASSIS
from an external source can only flow				GND

into the switch. This allows the Switch to operate only whenever DC power is correctly applied to the two inputs. It protects the Switch from incorrect DC input connections. An incorrect polarity connection, for example, will neither affect the Switch, its internal power supply, nor will it blow the fuse in the internal power supply.

	The manual power “On-Off” Switch (optional) is used for powering the unit on
and off when it is placed into or taken out of service.
B3.0	APPLICATIONS FOR DC
POWERED ETHERNET SWITCHES
	Magnum 6K8-Series Switches are
easily installed in a variety of applications
		DC terminal
where -48VDC, 24, or 125VDC or 5VDC
power is used as the primary power source.		block
The DC power configuration capability
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