tions. Each module has a capacity for almost 100 000 unattended transactions.
Up to 4 modules can be connected to a single DSB port.
Description of the Digital
I/O Module
This is an eight channel parallel input/output module. Primarily, it is used as
an output module to control devices such as light switches or as an input mod-
ule to register alarms from external devices. These functions can have the fol-
lowing benefits:
• Power control for remote, or isolated devices. Only after proper authoriza-
tion is received is the power supply available to the device.
• Implementation of status indicators – enabling users to see at a glance if
the devices are available or already in use.
• Alarm triggering on equipment outside the control of the PSS 5000. Re-
duces time by being able to monitor more from a central location.
• Reduce utility costs by turning off services in certain areas during slow
periods of the day.
The uses of such a module are varied. They can, for example, be used to con-
trol the power supply to remote dispensers, reducing the incidents of theft by
providing a fail-safe, no by-pass of the devices.
Description of the
Modem Interface Module
The Modem Interface Module is an RS232 module that supports the control
signals necessary to control a modem. This enables serial remote access to the
PSS 5000 when a network connection is not available.
Description of LON
Module
The LON interface with the PSS 5000:
Note: Only one LON interface can be installed on each PSS 5000 system.
This provides an Echel 2-wire twisted pair LON interface, which meets the
IFSF signal requirements, and supports a "free" topology, which means that
the LON interface can be connected to a number of devices without point-to-
point terminations.
Option Description
LON Interface module
(DSB522)
This option uses a single module that has 12 connec-
tors, each of which provides a terminated LON inter-
face.
This module requires a software driver, which is inte-
grated with the PSS 5000 Application software. To en-
sure that the module operates correctly, make sure that
the correct PSS software is installed.
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