PSI System Controls and Diagnostics
I128r5 User Manual
I128r5_UM_190923 Page 86 of 123
18
Connecting Slave Devices
The I128r5 implements a full fiber optic loop controller capability on two loop ports, labelled
A560 Sync and ACI. For proton therapy installations the ports have prescribed use. In other
applications they are available for general use. You can connect up to 15 devices to each port
and access them via the I128r5 Ethernet interface.
To use a slave device, you simply connect it to one of the two fiber-optic ports on the I128r5
using suitable ST-terminated fiber-optic cable and run the normal Discover sequence in the PTC
DiagnosticG2. The device will be shown as a slave of the I128r5, and you can open its window
and control it in the normal way.
Figure 59. I128r5 with two M10 general purpose I/O devices connected as slaves on loop 1
The slave device simply passes its data through the I128r5. It is not constrained by the I128r5’s
acquisition settings.
