Operator's Manual

VTac Vehicular Tactical Network —CHAPTER 8
Software Version OTP 5.07 M-803 Operator Manual 87
GPS Option
The OpenSky VTac-803 can be supplied with an
optional embedded GPS receiver. GPS data can be
reported either over-the-air to remote dispatch
positions or to a local terminal connected directly to the
mobile radio.
Additionally the I/O connector provides a serial GPS
port which outputs GPS NEMA messages. Reporting
characteristics can be configured remotely and can be
event driven.
GPS functions are transparent to the subscriber and
require no user interaction.
Connectivity Interface
The VR-803 supports a variety of interfaces with its
flexible interconnect. The M-803 and VRB connect to
the RF Combiner via the antenna ports located on the
rear panel.
Peripheral Support
The rear panel also provides interfaces for both analog
and digital peripherals.
The serial RS-232 port operates in asynchronous
ASCII mode for configuration and control and switches
to Serial Line Internet Protocol (SLIP) mode for data
communication between the fixed network and a
mobile computer or terminal device.