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3. INTRODUCTION
3.1 DESCRIPTION
The XL Series Mobile Radio provides the advanced connectivity that first responders require while
addressing evolving voice and data communications. It meets MIL-STD-810G for durability. XL Mobile
Radios support P25 Trunking, P25 Conventional, EDACS
®
, and analog conventional.
The XL Mobile is a P25 converged, multiband Land Mobile Radio with an option to include LTE capability.
The XL-200M is a full-spectrum multiband mobile radio, supporting the UHF, VHF, 700 MHz, 800 MHz,
and 900 MHz frequency bands. The XL-185M supports the same frequency bands, but can only perform
as a single-band radio. Designed for anyone who needs to communicate with multiple agencies or across
multiple bands, the XL Mobile delivers mission-critical connectivity.
For options and accessories, refer to Section 3.4. Additional accessories may have been added since
publication of this manual; refer to the Products and Services Catalog or contact Harris for more
information.
The XL Mobile installation includes a control head and the Vehicle Communications Hub (VCH), which
are described in the following sections.
3.1.1 Vehicle Communications Hub (VCH)
The XL Vehicle Communications Hub (VCH) is the main LMR radio unit in a vehicular (mobile) radio
system. A major feature of the VCH design is the use of IP networks for tethering multiple radio control
heads. With respect to the audio systems, this feature allows the VCH to support approximately eight IP
devices as audio sources and destinations.
Figure 3-1: Vehicle Communications Hub (VCH)
3.1.2 XL Control Head
The XL Mobile supports the addition of an XL Control Head to the VCH in a front-mount or remote-mount
configuration. In the front-mount configuration, the VCH and control head are physically mounted together,
while in the remote-mount configuration, the control head is in a separate location.
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