User's Manual

Installation 2-4
DataNex EMS Wireless, DATA-20 Digital Radio
QAM Modem
I/O Ports: TRUNK: Data I/O 15pin D-sub (female) HD
RF
Connectors:
70 MHz
OUT:
SMA (female); Modulator output
70 MHz
IN:
SMA (female); Demod input
Status LED: MOD: GREEN indicates Modulator Lock
DEMOD: GREEN indicates Demod Lock
Up/Down Converter Module
RF
Connectors:
TO PA: SMA (female), Upconverter output to be applied
to linear Power Amplifier module (internal to
radio).
70 MHz
IN:
SMA (female), Modulated IF input from QAM
Modulator.
RF IN: SMA (female), Receiver input.
70 MHz
OUT:
SMA (female); Downconverter output to
Modulator input
Status LED: TX
LOCK:
GREEN indicates TX AFC LOCK
Flashing RED indicates LOSS OF TX LOCK
RX
LOCK:
GREEN indicates RX AFC LOCK and strong RX
signal
YELLOW indicates RX AFC LOCK and nominal
RX signal
RED (continuous) indicates RX AFC LOCK and
weak RX signal
RED (flashing) indicates LOSS OF RX LOCK