Specifications

ST900 Family General Handbook
667/HB/32900/000 Issue 11 Page 222 of 265
30.3 Hong Kong Internal Manual Panel
The internal Manual Panel used on ST900s supplied to Hong Kong is similar to the
standard item although they are housed internally and mounted horizontally. The
following sections describe the differences.
30.3.1 Signals OFF/ON Switch
This is not mounted on the Internal Manual Panel - it is mounted on the Police
Manual Panel behind the Manual Access Door. Its function is unchanged from the
standard item.
30.3.2 SW1, SW2 and SW3 Push-Buttons
SW1 and SW2 are pre-allocated to Override Dim and Flash Signals and are silk
screened accordingly. SW3 is not present.
The LAMP DIM OVERRIDE switch gives two situations, NORMAL or BRIGHT.
When the switch is not active the Signals Dimming facility will operate normally.
When the switch is active the Signals Dimming facility will be overridden.
30.3.3 Spare Indicators
There is only one spare indicator - AUX3.
30.4 Extra Facilities
30.4.1 Basic Manual Panel
If the Manual Panel is not required, a basic Manual Panel that only contains a
SIGNALS OFF/ON switch can replace it. When this is used, handset commands are
available for the selection and display of Manual Facilities.