Proxim Tsunami Multipoint MP-820-BSU-100 Installation Manual page 59

Maximum power supplied to the device is 32 Watts and the device typically draws 10 Watts.
Above 0° Celsius internal temperature, the device need not regulate its temperature, so the power drawn is generally lower in
this temperature range. When the internal temperature gets close to the limits, the device starts to heat itself and the power
draw increases. Powering the device when it is cold, triggers a special self-heat mode where the device is inoperable until the
internal temperature is above -20° Celsius. This is signaled by a solid yellow LED on the Ethernet connector. Once the internal
temperature is above -20° Celsius, the device boots normally.
Type
Impedance
Cable Length 330 feet / 100 meters
: Always use a straight cable from PoE to the device. When you use a 4-pair cross over ethernet cable, the reload
functionality gets activated and forcibly deletes the operating image.
3.2.1.1.1 b) Ethernet Port 2 (PoE OUT and Data)
The Gigabit Ethernet Port 2 is used for PoE OUT and Data.
While using this port, the following points should be considered:
48 VDC (15 W average) is present on the second Ethernet port. Make sure the connected device can support this
voltage.
If power from the second Ethernet Port is desired, then Proxim recommends you to use 60W PoE (not supplied).
If a device is connected to the second Ethernet port for data only, then use a PoE Splitter (not supplied).
3.2.1.2 Serial Port
The Serial Port is used for debugging and management, and Audible Antenna Alignment through Command Line Interface
(CLI).
The serial connection is established with an RJ11 to DB9 connector (also referred to as a "dongle") by connecting the RJ11
end of the dongle connector to the device and the other end to your Personal Computer.
®
Tsunami 800 and 8000 Series - Hardware Installation Guide
Recommended Ethernet Cable Specifications
Cat5e/Cat6, STP, 24 AWG, UL rated, UV-shielded and outdoor-rated
100 ohms
: The total length of cabling between the Personal Computer and the device
cannot exceed 100 meters (includes cable from the Personal Computer to
the PoE, and the cable from the PoE to the device. Due to DC power
requirements, the maximum cable length between the PoE Injector and the
device is 75 meters.
8000 Series - Hardware Overview and Installation
59