Specifications

ST900 Family General Handbook
667/HB/32900/000 Issue 12 Page 20 of 265
The ST900 Controller uses the reliable and proven Mains Lamp Switch Cards as
used in the ST800 Controller, offering a total of 32 phases per controller.
The ST900 Family supports all existing ST800 equipment such as Gemini, Gemini
2
,
Tele12 OTU, IRM/IMU Card, SDE/SA Card (if the SoundMark Interface is required),
etc.
The controller conforms to the UK Highways Agency specification TR2500.
Figure 1 – ST900 System Overview