Radionics D9412G, Руководство по эксплуатации и установке

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D9412G/D7412G Operation & Installation Guide
© 2002 Radionics Page 39 43488D
D9412G/D7412G
Off-board Points
8.0 Off-board Points
8.1 Point (ZONEX) Bus D9412G Terminals D7412G Terminals
The D9412G can use POPIT (Point of Protection Input Transponder) Modules to provide up to 238 off-board points,
bringing the total number of points the D9412G can monitor to 246. The D7412G can provide up to 67 off-board
points bringing the total number of points the D7412G can monitor to 75. Each off-board point requires a POPIT
Module.
POPITs connect to supervised two-wire data expansion loops run from POPIT to POPIT throughout the premises.
Data expansion loops connect to a D8125 POPEX (Point of Protection Expander) Module. POPEX Modules connect
to the point bus on the panel, Terminals 23 and 24 for power (3 and 9 on the D7412G), and Terminals 25 and 26
(D9412G only), or 27 and 28 for data.
If a POPIT is disconnected from the expansion loop, a trouble message (Extra Point) appears immediately. See
the
D9412G/D7412G Program Entry Guide for programming options.
If a POPIT is connected to the expansion loop that is programmed for a point number that does not appear in the
program for the panel, it appears as a trouble condition when the data expansion loop
restores from a faulted
condition. A faulted condition on the data expansion loop includes:
1) Positive leg of the data expansion loop shorted to ground.
2) Negative leg of the data expansion loop shorted to ground. If Ground Fault Detect is enabled, this causes a
general Ground Fault event.
3) Data expansion loop (positive or negative leg) becomes disconnected.
4) Data expansion loop becomes shorted.
Placing a short on the data expansion loop generates a
PT BUS TROUBLE
report. The panel sees all points on
the shorted expansion loop as shorted, and responds according to point programming, except for fire points. The
fire points will respond locally as a trouble condition and transmit missing fire reports if programmed during this
condition.
POPIT Modules monitor their sensor loops for three conditions: loop normal, loop open, and loop shorted. They
report these three conditions to the control panel.
The D9412G/D7412G uses point programming to interpret the sensor loop information reported by the POPITs
and make the appropriate system response.
8.2 D8125, D8127 and D9127 POPIT Modules
D8127 and D9127 POPITs use the D8125 POPEX Module to report to the panel. Each D8125 supports up to 119
POPIT points. Connect two D8125 Modules to the D9412G to bring the combined total number of POPIT and on-
board points to 246. Points 9 to 127 connect to the first POPEX Module. Points 129 to 247 connect to the second
POPEX Module. The D9412G reserves Points 128 and 248 for internal use. The panel only annunciates activity for
each POPIT, not each detection device connected to the sensor loop.
There are two versions of the D8127 and D9127 Modules. Both module enclosures are made of UL listed fire
resistant material. D8127T and D9127T Modules contain tamper switches. D8127U and D9127U Modules come
with untampered covers. Unless the module is mounted in a tampered enclosure, UL requires D8127T and
D9127T Modules for certificated accounts.
8.2.1 Listings
The D8125 POPEX and the D8127 and D9127 POPIT Modules are UL listed for Local or Police Connected Burglar
Alarm, Central Station Burglar Alarm, Household Burglar Alarm, Central Station Fire, Local Fire, Remote Station
Fire, Household Fire and Electrically Actuated Transmitter Applications. See the
D9412G/D7412G Approved
Applications Compliance Guide to determine the required equipment and enclosures for the application.