Campbell Scientific RF320-Series Ritron VHF/UHF Radios - Manual (Page 15)

RF320-Series Ritron VHF/UHF Radios
6.2 Interconnect
FIGURE 6-1 illustrates the interconnection of an RF320-series radio in a
typical installation. The depicted interconnect will be the same for an
installation of the radio at either an RF base, RF remote, or RF repeater
location. In all cases, the radio will interface with system power, a radio
modem, and an antenna.
FIGURE 6-1. RF320-series radio interconnect diagram
The Radio to Modem Interface Cable Assembly (CSI# 29201) provides the
electrical interconnect between the DB-15 connector on the RF320 radio and
the 10-pin transceiver interface connector on the RF500M or RF310M radio
modem. Operational power is supplied to the radio via the red (+V) and black
(-V) leads exiting the backshell of the DB-15M. The middle 10-pin connector
is for connection of Campbell Scientific’s push-to-talk switch (CSI#13855),
which is used to activate the radio’s transmitter for test purposes.
If interfacing the RF320-series radios with an RF500M radio
modem, ensure that the internal jumpers on the RF500M circuit
board are configured for use with the RF310/RF320 radios (see
Section 2.2.1 of the RF500M instruction manual). NOTE
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