An Operator Station is composed of a video monitor for data display and a keyboard of 16 backlighted keys for
operator commands and alarm status notification. it is the terminal through which the user can, to some extent,
edit or alter the system operation. The PMS II may have two (2) fully independent operator stations.
The system's sensors are the physical link between the function being monitored and the Main Unit. There are
three (3) basic electrical input type sensors connected to the system. These are rate (variable pulse output), switch
(closed or open dry contacts), and analog (variable voltage, current or resistance output) sensors. These sensors
are terminated inside the Main Unit at their respective modules.
System Power Source
The system requires an isolated, uninterruptable and dedicated 12 VDC or 24 VDC power source for operation.
(Refer to the Installation Manual to determine which applies for your system. ) This consists of one or two
commercial-duty twelve (12) volt storage batteries in. series, supplied from a consta-volt charger with sufficient
amperage output to satisfy the individual system requirements. A fused switch box is also required at the source
for completely turning off system power. Refer to Dwg. 23008 (12VDC) or 23096 (24VDC) for details.
Section 2 - Page 3