Pid Gateway - ADT FOCUS 200 PLUS Installation And Setup Manual

FOCUS 200 PLUS Installation and Setup Guide
RS-485 Bus Cable Types
Two types of bus cable are used. Each is a 4-conductor multi-gauge cable, differing only in the type of
insulation.
•
494465 (B6445) Cable - used as general-purpose.
•
494467 (B6467) Cable - used specifically in air-handling plenums.
Cable Run Considerations
The safeguarding of RS-485 bus cable(s) from physical damage is vital to continuous uninterrupted
operation of the FOCUS 200 PLUS System. Keep the following guidelines in mind when running the
cable:
•
Bus cable(s) should be routed to take advantage of the shortest possible length of cable, to
minimize voltage drop.
•
Any required junction boxes (test terminals) can be placed to be accessible from the floor. Junction
boxes can also be used to sectionalize the bus to serve as an aid during troubleshooting.
•
Each of the buses is terminated internally in the control unit, so there are no bus-terminating
jumpers on the control unit circuit board. This means that neither of the buses by itself can be used
in a dual-run configuration (two runs from a common connector).

PID Gateway

The PID gateway utilizes the quad trunk monitoring (two wires for power and two for signaling), and
control circuitry of the FOCUS 200 PLUS system. It employs the same Point Interface Devices (PID's),
Commandable Output Point Interface Devices (COPID's), and other interface devices as used on
previous FOCUS Systems.
Each PID provides a point of protection and serves to interface a sensor into the system. Each COPID
occupies a point in the system, but the COPID is equipped with a pair of relays (form C, dry) that
operate in response to a predetermined function being monitored. A point of protection used in
conjunction with a PID is considered an input point, and one that is used with a COPID is considered
an output point.
A PID gateway:
•
Connects to an RS-485 bus from the control unit and serves as a data gathering terminal for any
combination of up to 62 monitoring points.
•
Interrogates its PID's and their sensors, issues commands from the control unit to its COPID's, and
reports the status of its connected devices to the FOCUS 200 PLUS control unit.
•
May be used for retrofit applications.
•
May be used for installations where the sensor or other device cannot be connected to the SIM
Gateway.
•
Functions in a manner similar to the control unit circuitry used for interfacing the quad trunk on a
FOCUS 100 System.
•
Operates with most presently used FOCUS System accessories (PIDs, COPIDs, etc.). A COPID is
not interrogated by its PID gateway and is therefore not supervised.
•
Can be used for retrofitting previous FOCUS Systems (FOCUS 48, FOCUS 100B, C and D, FOCUS
256, and FOCUS 300 Systems).
Point Interface Devices (PIDs)
The Point Interface Device:
•
Continuously monitors its loop for a cross, open, or tamper condition, stores this information, and
reports it to the PID gateway when it is interrogated.
•
Controls the application of (+) 12 VDC power from the gateway trunk to its sensor (if the sensor is
being powered by the system).
•
When commanded by the control unit, will open the power line to its protection loop, for the
purpose of resetting an alarm on a latching-type sensor, such as a smoke detector.
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