PROIS is a acronym for "Professional Radio Option Interface Specifications",
and specifies a group of
MOTOROLA™ propriety software commands to control and interrogate a
MOTOROLA radio. Communication with the radio is achieved by using the
low-level software commands via the Serial Peripheral Interface Bus.The
commands can be from a single Byte length for an acknowledge to 28 Bytes
length when writing "free-text" to the display of the radio, most commands
to and from the radio are accompanied by a checksum to detect data
corruption.
For more detailed information on PROIS and the command-set, please contact
your nearest Motorola representative.
Informative selection of the API commands are:
| Option-board to Radio |
Radio to
Option-Board |
| TX command |
Transmitter up and audio ready, Ack/Nack |
| RX command |
Valid signal received (CTCSS), RSSI,
Ack/Nack |
| Hard-Channel change |
Current Channel, Ack/Nack |
| Soft-Channel, TX-power,
Bandwidth |
Soft-Channel in use, Ack/Nack |
| Take full control of
the Human interface |
PTT, key-press, hook-indication, Ack/Nack |
| Set/Reset Icon, LED or Backlight |
ack/Nack |
| "Free-text" on Display |
Ack/Nack |
| Full 5-tone control |
Ack/Nack |
Some examples using PROIS:
Radio under PROIS control
LED's controlled by PROIS
Icons controlled by PROIS
Free-text with PROIS
The Alpha-numeric display provides the option of free-text
with a maximum of 14 characters per line (depending on the
model) a maximum of three lines of are available, and each
line can be updated individually. The LED's and the Icons
can be switched on or off individually.
PROIS connectors:
The Radio Option-Interface is found on most modern
MOTOROLA™
radios, the hardware-interface is a 40 pin ZIF connector.
Portable Radio PROIS connector.
Mobile Radio PROIS connector.
The PROIS connector gives access to:
- Flat transmit audio
- Pre-emph.transmit audio
- Flat receive audio
- Microphone transmit audio
- Pre-Mute receive audio
- Serial Peripheral Interface Bus
- 7.5 and 3.2 Volt
power-supplies