D9412GV4/D7412GV4 v2.03 | Installation and System Reference Guide | 9.0 Off-Board Points
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Bosch Security Systems, Inc. | 7/16 | F01U265457-09 50
9.3.5 POPIT Sensor Loops
The number of normally-open and normally-
closed detection devices each sensor loop can
supervise is limited only by the resistance on the
loop. Resistance on each sensor loop must be
less than 100 Ω, not including the EOL resistor.
Certain UL and NFPA applications can
limit the number of detection devices.
Consult the appropriate UL or NFPA
standards.
POPITs detect open, shorted, normal, and
grounded circuit conditions on their sensor
loops. They send the condition of their loops to
the control panel. A ground on the sensor loop
sends a general system ground-fault condition
report. Each POPIT is programmed and sends
signals to the control panel separately.
Terminate each POPIT sensor loop with the 33 k
Ω end-of-line (EOL) resistor (D106F) included
with each POPIT.
Use a twisted-pair wire (six twists per foot) in all
POPEX and POPIT installations for the data
expansion loop wiring and the POPIT sensor
loops. Run wires away from AC sources to
prevent AC induction. If you suspect a noisy
environment, use shielded cable. Refer to Section
9.3 Installing the D8125 POPEX Module on page
48.
9.3.6 POPIT Module Point Assignments
Six switches on each POPIT assign the module to
a point number. For POPIT switch settings, refer
to Appendix B.1 Zonex 1 Points on page
167.
9.3.7 Program Record Sheet
The Appendix B.1 Zonex 1 Points on page
167 contains the POPIT Switch Settings for the
D9127 POPITs. On the D9127T/U POPIT,
switches are numbered 0 to 6, from left to right.
Set the indicated switches to the ON position. If
a dash () appears in the switch position, set the
switch to the OFF position.
The second column contains the Translation of
the point number into the Zonex format. Refer to
Point User Flag in the D9412GV4/D7412GV4
Program Entry Guide (P/N: F01U265459) for an
explanation of this feature.
The third column contains the Point Number as
shown at keypads.
The fourth column contains the Point Index.
Refer to Point Index Parameters in the
D9412GV4/D7412GV4 Program Entry Guide (P/N:
F01U265459) for an explanation of the point
index.
The fifth column, Area Assign, shows the area to
which the point is assigned.
The sixth column shows the Debounce Count for
the point. Refer to Debounce Count in the
D9412GV4/D7412GV4 Program Entry Guide (P/N:
F01U265459).
The seventh column shows the BFSK/Relay
report code, which associates a output to an
individual point.
The eighth column contains the Custom Point
Text displayed at keypads for the point. The text
is sent to the receiver when the control panel
uses the Modem4 format.
9.3.8 POPIT Labels
D9412GV4 off-board points are numbered 9 to
127 and 129 to 247. The D7412GV4 uses Points 9
to 75 only. The D9412GV4 reserves Points 128
and 248 for internal use. POPITs must be
connected for Points 129 to 247 to expansion
loops connected to POPEX #2.
Two sheets of peel-off POPIT labels are supplied
with the D8125 POPEX Module. Use the sheet
marked “Bank1” for Points 9 to 127. Use the
sheet marked “Bank2” for Points 129 to 247.
Each label has two parts. Place the smaller part
(with only the point number) on the chip. Place
the larger part with the switch settings on the
base of the POPIT. Set the switches and cover
the POPIT.
Do not program two POPITs for the same point
number. After programming all the points,
perform a Service Walk Test. Refer to Section
4.11 Service Walk Test on page 52. If a point does
not test, check the programming for a duplicated
address.
Walk Test and Service Walk Test Do Not Show
Extra Points: If the point assignment switches on
a POPIT or OctoPOPIT are set incorrectly,
missing and extra points can occur. If the same
point number is assigned to two or more POPITs
or OctoPOPITs, none of the points with that
number test correctly. Refer to Section 9.1 Zonex
Buses on page 46.