Intermec MobileLAN power 12, Руководство пользователя

Страница: 28 / 46

2-8
Connecting Cables to the Power Bridge
Splitter
*
Power Bridge
1
2
3
4
5
6
7
8 1
2
3
4
5
6
7
8 1
2
3
4
5
6
7
8 1
2
3
4
5
6
7
8
R J - 4 5 I N R J - 4 5 O U T
E t h e r n e t
S w i t c h / H u b
RJ-45 RJ-45
d a t a
d a t a
d a t a
D C +
d a t a
D C -
d a t a
d a t a
d a t a
d a t a
s p a r e
s p a r e
s p a r e
s p a r e
'DWD
,Q
'DWD
3RZHU
2XW
D C +
D C -
6HH )LJXUH RQ SDJH
Connecting Cables to End Devices
The Power Bridge contains proprietary line sensing capabilities that
enable it to send power only to end devices that are enabled to receive
power. These end devices, termed Power over LAN Enabled, will
receive power once they are connected to the Power Bridge.
The Power Bridge detects devices that are not enabled, and the Power
Bridge will not send power to those devices. Data continue to flow via
the Category 5, 6, or 6e cabling regardless of the status of the end
device.
End devices that have not been enabled to receive power directly may
receive power and data through an external splitter. The external
splitter separates the power and data prior to connection to the end
device. For more information, see the next illustration.
Before connecting end devices to the Power Bridge, determine if
•
the end device is Power over LAN Enabled. If the end device is not
Power over LAN Enabled, the end device may be safely connected;
however, the port will not supply power and will function as a
normal Ethernet data port.
•
the end device requires an external splitter or only a single RJ-45
connection. If an external splitter is required, be sure to use a
splitter with the correct connector and polarity.
•
the end device’s power requirements are consistent with the Power
Bridge voltage and power ratings (see Appendix B for voltage and
power ratings). If an active splitter is required, be sure to use a
splitter with the correct power rating.