Wiring Octopopits; Line Termination; Octopopit Sensor Loops; Testing Off-Board Points - Radionics D9000 Series Operation And Installation Manual

Wiring OctoPOPITs

Follow the procedure below to wire D8128C
OctoPOPIT Modules to the D9412/D9112. You
can connect OctoPOPIT and POPEX modules to
the same Point Bus terminals. The modules wire
in parallel. Remember you can never assign the
same point number to more than one point.
1. Power down first: Power down the panel by
disconnecting the positive (red) battery lead
at the battery and unplugging the
transformer.
2. Connect terminal 1 on the OctoPOPIT to
terminal 23 on the D9412/D9112 (terminal 9
on the D7412/D7212).
3. Connect terminal 2 on the OctoPOPIT to
terminal 28 on the panel if you are going to
assign point numbers from 9 to 120 (or 9 to
75 if you are using a D7412/D7212) to this
OctoPOPIT. See OctoPOPIT Point
Assignments.
If you are assigning point numbers from 129
to 240, connect terminal 2 on the OctoPOPIT
to terminal 26 on the D9412/D9112.
4. Connect terminal 3 on the OctoPOPIT to
terminal 27 on the D9412/D9112 if you are
going to assign point numbers from 9 to 120
(or 9 to 75 if you are using a D7412/D7212)
to this OctoPOPIT.
If you are assigning point numbers from 129
to 240, connect terminal 3 on the OctoPOPIT
to terminal 25 on the D9412/D9112.
5. Connect terminal 4 on the OctoPOPIT to
terminal 24 on the D9412/D9112 (terminal 3
on the D7412/D7212).
6. See OctoPOPIT Sensor Loops for
instructions on connecting devices to the
OctoPOPIT's sensor loops.

Line Termination

If there is no D8125 POPEX module connected to
ZONEX 1, terminals 27 and 28, set switch 4 on
the first OctoPOPIT connected to those terminals
to the ON position.
If there is a D8125 POPEX module connected to
ZONEX 1, terminals 27 and 28, set switch 4 on all
OctoPOPITs connected to those terminals to the
OFF position.
[D9412/D9112 only] If there is no D8125 POPEX
module connected to ZONEX 2, terminals 26 and
25, set switch 4 on the first OctoPOPIT
connected to those terminals to the ON position.
[D9412/D9112 only] If there is a D8125 POPEX
module connected to ZONEX 2, terminals 26 and
25, set switch 4 on all OctoPOPITs connected to
those terminals to the OFF position.
See Figure 14 for the location of the switches on
the OctoPOPIT.
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Testing Off-board Points

D9000/D7000 Series Operation & Installation Manual
Page 31
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OctoPOPIT 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 100Ω with the detection devices
connected.
Certain UL and NFPA applications may limit the
number of detection devices. Consult the
appropriate UL or NFPA standards.
The OctoPOPIT detects open, short, normal, and
grounded circuit conditions on its sensor loops
and transmits the conditions to the panel. A
ground on the positive leg of the sensor loop
transmits a shorted condition for the point. Each
sensor loop is assigned a point number and
transmits to the panel separately.
Radionics recommends you use twisted-pair wire
for the OctoPOPIT sensor loops to avoid EMI
problems. Run wires away from the premises
telephone and AC wiring. If you suspect a noisy
environment, use shielded cable.
There are two rows of terminal numbers on the
OctoPOPIT. In the row closest to the terminal
blocks, the positive outputs for the sensor loops
are labeled P1 to P8. Sensor loop outputs P1 and
P2, P3 and P4, P5 and P6, and P7 and P8 share
common terminals. The common terminals for
each pair are labeled COM.
Terminate each OctoPOPIT sensor loop with a
1kΩ end-of-line resistor. Attach a resistor even if
you don't enable the loop. The OctoPOPIT comes
with a D105BL resistor for each sensor loop.
Duplicated points do not function correctly .
Take care not to duplicate point assignments.
Points assigned to both an OctoPOPIT sensor
loop and a POPIT, two OctoPOPIT sensor loops,
or two POPITs do not function properly.
Address Assignment Switches. Switches 0, 1, 2,
and 3 assign the OctoPOPIT sensor loops to
point numbers on the panel. Table 3 shows the
OctoPOPIT switch settings for point assignments.
Use the Service Walk Test to test off-board points.
See the Service Walk Test in the
Troubleshooting section of this manual for
instructions.
Walk test does not show extra points: Only the
Service Walk Test shows extra points. If you
incorrectly set the point assignment switches on a
POPIT or OctoPOPIT, you may create both
missing and extra points. If you assign the same
point number to two or more POPITs or
OctoPOPITs, none of the points with that number
will test correctly.
Test to be sure that all off-board points operate
properly. See the Service Walk Test in the
Troubleshooting section of this manual.