COMMITTEE ROOM EQUIPMENT
Type GSWL-SR27    Mains Switching

GENERAL
This is a 1U subrack designed to feed six IEC mains outputs. The outputs will not be switched on instantly but at a pre-set time after being instructed to turn on. Similarly the turn off is after a second pre-set time. These delay times are set in ¼ second steps using the rear panel DIP switches.
Drawing number A2-14160 shows the front and rear view of the unit

POWER SUPPLY
A small internal power supply is permanently on and supplies 5 volts for the PIC circuits that provide the timing as well as providing a low power external 12 volt output for other units. This output is current limited to 100mAs by a stabiliser and protected against reverse powering by means of a diode in series with it’s output.

CONTROL
These units are designed to communicate with each other and be switched on and off in one of three ways:-

                  1) Use the front panel switch marked permanently on
                  2) A momentary loop between pins 5 and X of the RJ45 connector will toggle the unit on and off.
                  3) An earth on pin 4 of the RJ45 connector will force the unit on

For a view of the GSWL-SR27 as an adobe .pdf drawing please follow this link.