Motorola Piccolo-XR Owner's Manual page 40

The DIOS PIU and Piccolo-XR Units
Downloading new software to a PIU
1. Connect the PIU adapter RS232 port to the computer
with the FTN6597B cable (see Figure 23).
2. Connect the PIU adapter to an external 12VDC battery
or to an internal 9V battery. (See page 12 for power
options).
3. Connect the PIU unit to an external 12VDC battery or
to an internal 9V battery. (See page 12 for power
options.)
4. Use the FKN8203B cable to connect the Adapter port
of the PIU adapter to the RS232 connector of the PIU
unit to be programmed.
5. Use the Distributed I/O Service Toolkit Downloader.
For additional information, please refer to the online help of the
DIOS Service Toolkit.
PIU unit
+ -
Programming
Cable
Connectors
Figure 23
PIU Adapter Programming Mode Connections
The grounding connector is also used as an ON/OFF
NOTE!
switch, and the unit cannot be powered on without
connecting it. (See Figure 9.)
34
PIU Adapter
RS232
+ -
Connectors
GND RS485
Adapter
Toolkit PC
GND RS485
RS232 -
To Adapter of
Programming PIU
RS232
To PC
Adapter -
To RS232 of
Programmed PIU