Barnett Engineering B1277-HSPA, Руководство по установке и эксплуатации

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INSTALLATION PAGE 4
4. INSTALLATION
The B1277 Cv3 should be installed in a clean, dry location suitable for
electronic equipment.
Caution: Power and antenna cables should be connected only after the
installation is complete.
In order to communicate with neighbouring cellphone towers, you will
need to attach an antenna to the Cv3. The air interface for this phone is an
SMA connector on the side of case.
A dipole antenna was included in the purchase of this product. This
antenna is suitable for indoor use only and is limited in its range. Please
contact our sales office if your needs exceed the limits of this antenna, as
we may be able to supply or recommend an appropriate substitute.
Installation using a two-way radio or public address system
The radio port provides the interface to a customer supplied mobile radio
base station. It can also be connected to a public address system. This port
supports outgoing (TX) audio, incoming (RX) audio, a push-to-talk (PTT)
line to control the transmitter and a carrier operated switch (COS) line to
monitor if the radio system is busy. Both audio lines are single ended and
have independent level controls. The PTT line is an open collector driver.
The COS line uses a ground closure to sense activity and can be
programmed for either normally open or normally grounded operation.