Galaxy 3 Series Programming Manual
Section 10: Engineer 3
Option 71 - SPI Key
The SPI (Serial Peripheral Interface) key is an engineering peripheral used for copy/overwriting programming
data and carrying out software upgrades.
Fitting the SPI Key
The SPI key is fitted directly on to the Galaxy 3 Series control panel.
CAUTION:
Always power down the panel BEFORE removing or connecting the SPI key.
Failure to do so may result in damage to the SPI key. Never "hot-plug" the SPI
key.
The SPI Key has a 10-way connector. These locate on to the 10 pins of the SPI Program Header
(see Figures 14 and 15).
NOTE: The SPI Key should only be fitted in the direction shown in Figure 14.
Control
Panel
(part view)
Fitted
here
Figure 14. Location of SPI Key on Program Header
1. Release the hinged cap to expose the 10-way connector.
2. Plug the SPI Key on to the Program Header on the Galaxy 3 Series control panel.
SPI Key
SPI
Program
Header
175
71 - SPI Key
10-way
connector
Figure 15. SPI Key
Hinged
cap