D9000/D7000 Series Operation & Installation Manual
Page 29
74-07692-000-C 4/97
Wiring Data Expansion Loops to POPEX
Modules
There are two positive (+) and two negative (-)
data expansion loop terminals on each POPEX
module. Follow the procedure below to connect
the data expansion loops to the D8125 POPEX
Module. See Figure 12. Remember, you can only
connect a maximum of 119 POPITs to one D8125
on the D9412/D9112 and 67 for the D7412/
D7212.
1.
Connect the positive (+) Data terminal from
the first POPIT on the data expansion loop to
one of the D8125 module’s positive (+)
terminals.
2.
Connect the negative (-) Data terminal from
the first POPIT on the data expansion loop to
one of the D8125 module’s negative (-)
terminals.
POPIT Sensor Loops
The number of normally-open and/or 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
and greater than the end-of-line
resistor value with the detection devices
connected.
Certain UL and NFPA applications may 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 transmit the condition of their loops to the
panel. A ground on the sensor loop reports as a
open condition. Each POPIT is programmed and
transmits to the panel separately.
Terminate each POPIT sensor loop with the 33k
Ω
end-of-line resistor [D106F) included with each
POPIT.
Radionics recommends you use twisted-pair wire
in all POPEX/POPIT installations for both 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. See
Premises
Wiring in the Installation section.
POPIT Module Point Assignments
Six switches on each POPIT assign the module to
a point number. POPIT switch settings are found
in the
Point Assignment section of the Program
Record Sheet. See Figure 13.
Program Record Sheet
The first column on the program record sheet
contains the switch settings for the POPITs.
Switches are numbered 1 to 6, left to right on the
D8127 POPIT. Switches are numbered 0 to 6, left
to right on the D9127 POPIT. Set switches whose
number appears in the setting to the ON position.
Set switches with a dash (-) in the switch position
to the OFF position. See Figure 13 below.
IMPORTANT! For the D9412/D9112, point
numbers 73 to 127 and 193 to 247 must use
D9127 POPITs. Points 9 to 72 and 129 to 192
may use either D8127 or D9127 POPITs. For the
D7412/D7212, points 9 to 72 may use either
D8127 or D9127 POPITs; however, D9127
POPITs must be used for points 73-75.
The second column contains the translation of
the point number into the ZONEX format. See
Point User Flag in the Panel Wide Parameters
module of the
D9000/D7000 Series Program
Entry Guide (74-07695-000) for an explanation of
this feature.
The third column contains the point number as it
is displayed at command centers.
The fourth column contains the point index. See
the
Point Index Parameters module in the
D9412/D9112 Program Entry Guide (74-07695-
000) for an explanation of the point index.
The fifth column of the Program Record Sheet
shows the area the point is assigned to. The sixth
column shows the Debounce Count for the point.
See
Debounce Count in the Point Assignments
module in the
D9000/D7000 Series Program
Entry Guide (74-07695-000).
The seventh column shows the BFSK report
code. It is the point number reported for this point
when the panel is using the BFSK format. The
eighth column contains the text displayed at
command centers for the point. The text is
transmitted to the receiver when the panel is
using the Modem IIIa
2 TM
format.
Figure 13: Program Record Sheet
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