Proxim Tsunami Multipoint MP-820-BSU-100 Installation Manual page 15

A detailed description about the various components of the device are explained in the following sections.
2.1.1.1 Gigabit Ethernet Port
The device comes with one auto-sensing 10/100/1000 BASE-T Ethernet port with configurable Tx modes and speeds.
The Gigabit Ethernet port (PoE IN and Data) of the device allows the user to connect to the LAN by using Cat5e/Cat6 Ethernet
cable, and also power ON the device by using the Power over Ethernet (PoE) Injector supplied with the product package.
The device receives 48 VDC via a a standard Cat5e/Cat6 cable connected between the PoE and the device.
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
2.1.1.2 Serial Port
The Serial Port is used for debugging and management and GPS Sync (Only for BSU).
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
Figure 2-2 MP-825-SUR-50
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.
800 Series - Hardware Overview and Installation
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/ MP-825-BS3-100/ QB-825-EPR-50
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