User's Manual

SpiderCloud Wireless, Inc.
Hardware Installation Guide for SmartCloud® Radio Node - SCRN 800
15
PoE+
The SCRN is fully compliant with the IEEE 802.3at Power Over Ethernet (PoE+) specification.
The SCRN gets its power from a standard PoE+ switch (typical) or injector.
Per 802.3at, standard CAT-5/5e or better twisted-pair cable with a maximum length restriction
of 100 meters (328 feet) should be used for PoE+. This restriction minimizes power loss
between the PoE+ power source and the SCRN.
SpiderCloud provides an optional single-port PoE+ injector in the accessory kit. Use this
injector only when a PoE+ Ethernet switch is not available.
Figure 9 PoE+ Injector
To install the injector:
Step 1 Attach the injector’s power cord to a power source.
Step 2 Connect an unpowered Ethernet cable from a switch to the IN port on the
injector.
Step 3 Connect an Ethernet cable from the injector’s OUT port to the SCRN. The
injector will now inject power onto a pair of wire pairs in the cable. The SCRN
will expect a nominal 48V DC input (57V max) from the PoE+ injector. The
Phihong PoE+ power injector supplies 57V maximum typically.
Note
The SCRN can accept power on used or un-used pairs. Power distribution is
over two pairs of the four available pairs in Cat 5.
OUT
IN
CON
NECT
PoEPLUS
ON