5
2.1.2
LED indicators
Two LED diodes are used to indicate operating status of the RDS encoder:
Operation LED
Pilot LED
Status
Start-up
off
on
Initialization
on
off
Firmware update in progress
Operation
· · · · ·
Normal operation
- - - - -
An error occurred (encoder’s hw failure)
on
Receiving data on some port
on
External pilot synchronization is active
off
Internal clock source is selected
- - - - -
Stereo encoder error - pilot tone present but does not meet
the specification required. Switch the RDS encoder to internal
clock source.
2.2
Rear Panel
E T H E R N E T
U S B
O U T P U T
IN P U T
G P IO
1 2 V D C
L O O P
S ID E
Connector or element
Desctiption
12V DC Power Supply
Power supply connector. See section 3.3 for details.
Ethernet
Ethernet RJ-45 connector.
Use a standard (direct) cat 5 Ethernet cable for connection to the Ethernet switch, router or wall-socket.
The Ethernet control includes internal website (referenced as “
Port 2
”) and two independent user
configurable general purpose ports (referenced as “
Port 3
” and “
Port 4
”) designated for remote control via
TCP or UDP protocol.
The encoder operates also with no cable connected.
USB
USB standard B type connector. This port is referenced as “
Port 1
”.
Use the USB for initial setup of the encoder or for its local control.
The encoder operates also with no cable connected.
Output BNC
RDS signal output, modulated at 57 kHz subcarrier.
If the Loop/Side switch is set to the LOOP position, the Output is a sum of the RDS signal and the signal fed
to the Input BNC connector.
Input BNC
Optional input for synchronization to the pilot tone or for mixing the RDS signal with existing modulation
signal.
Loop/Side switch
Allows the
input
signal to be added to the
output
signal. See sections 3.1 and 3.2 for details.
GPIO
Optional logical inputs for direct control of some RDS services (TA, PROGRAM).
See the Technical manual for details. The connector is a standard 6-pin PS/2 type.