BRAVO Telemetry Module
Pin out
Pin Description
Pin No
1
2, 15
Name
ANT
GND
Direction
In
In
Description
Antenna input/output 50ohm impedance
Connect to ground
When configured as transmitter:Active low
Digital inputs: high impedance inputs
When configured as receiver: Active High
Digital outputs: LVCMOS output drive
Learn switch input: connection to an external,
optional learn switch.
If on board switch or to be used this input can
be left unconnected
Optional LED drive output Mirrors on-board LED
Connect to Vcc : Module is a transmitter
Connect to GND : Module is a receiver
Transmitter= Input
Connect to Vcc : Watchdog is disabled
Connect to GND : Watchdog is enabled
Receiver= Output
High : Watchdog is healthy
Low : Watchdog Fault!
Supply voltage
Leave unconnected
3, 4, 7, 8, 9,
11, 12 14
I/O1-8
In / Out
5
LRN SW
In
6
10
LRN LED
TX/RX
Out
In
13
W-DOG
In / Out
16
17,18
Vcc
N/C
In
N/A
General description of operation
Each module can be set to act as a ‘ transmitter’ or ‘receiver’ A telemetry system is achieved
when two modules are paired together, as transmitter (BRAVO-Tx) and receiver (BRAVO-Rx).
Each time any input changes on the BRAVO-Tx, it will transmit the status of ALL inputs to the
paired BRAVO-Rx(s). The BRAVO-Rx(s) which will set their outputs to match the BRAVO-Tx
inputs. After each state change the modules will return to sleep mode.
Note: All of the 8 channels are common to all modules in a system
Example: If you are using a system with two or many Bravo modules each channel be will com-
mon to all modules ie. if you change state on transmitter input 8, then all receiver output 8’s
will also change state.
DS-BRAVO-1
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