User's Manual

Hardware Overview
Trango Broadband Wireless — User Manual M915S Rev. 1 Page 3
Section 2 Hardware Overview
This section provides details about each radio in the M915S family. The M915S-SU and M915S-AP include built-
in, electronically switchable, dual-polarized antennas, as well as a reverse polarity SMA connector for the
attachment of an external antenna. Both units are designed for outdoor installation, and are powered by power-
over-Ethernet (POE) for ease of installation. The M915S Access Point, as well as the M915S subscriber units,
provide channels of operation within the 900 MHz ISM band that spans from 902 MHz to 928 MHz. The channel
width is 6 MHz, and the default channel assignments allow for 4 non-overlapping channels.
M915S AP and SU Hardware Components
Each radio comes equipped with a power-over-Ethernet (PoE) J-Box, an AC adapter, and mounting hardware.
Radio (MU or RU) antenna
Power Supply (120 VAC-24 VDC)
J-Box (Power-over-Ethernet Injector)
Mounting Hardware
4X
8X
2X
Figure 2: Basic Components of an M915S Radio
Figure 3: Bottom of Radio
At the bottom of the M915S are two access ports: a twist-on weatherproof cable port for RJ-45 Ethernet (and PoE),
and a translucent access cover plug over the unit’s diagnostic LEDs and reset button. The LEDs will be discussed
later in this text.