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Magnum 6KQ Managed Field Switch Installation and User Guide | (04/07) |
APPENDIX B : DC Power Input
B1.0 Specifications for Magnum 6KQ Switches, DC Power at 24V and – 48V and 125V DC Power input
Each Magnum Model 6KQ Managed Switch requires DC power input, at either 24VDC,
DC Power Terminals: “+”,
GND: ground wire connection to the 6KQ chassis screw
Power Consumption:
35 watts typical (for a fully loaded fiber model)
12 watts typical (for a small 4 port
24VDC Power Input nominal (18 to 36VDC range)
Standard 6KQ DC Power Input Terminal Block : “ -, GND, + ”
See also Section 1.0, Technical Specifications, for the 6KQ base unit
B2.0 -48VDC, 24VDC and 125VDC POWER, THEORY OF OPERATION
The
125VDC power options are designed using diodes inside on each DC power input line behind the two external power connection terminals, so that the power from an external source can only flow
A+
A-
GND
POWER SWITCH | HUB |
| |
| SUPPLY |
| + |
| - FUSE |
| CHASSIS |
| GND |
into the hub. 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.
B3.0 APPLICATIONS FOR DC POWERED ETHERNET SWITCHES
Magnum 6KQ Switches are easily installed in a variety of applications where - 48VDC, 24, or 125VDC power is used as the primary power source. The DC power configuration capability provides an Ethernet networking solution utilizing a special power supply in switches with a proven track record.
The
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