Bosch d9412gv3 사용자 설명서

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D9412GV3/D7412GV3 | Operation and Installation Guide | 9.0  
Off-Board Points 
 
Bosch Security Systems, Inc. | 10/10 | F01U143070-03 
49
 
9.4.7  OctoPOPIT Sensor Loops 
Only the resistance on the loop limits the number of 
normally-open or normally-closed detection devices 
each sensor loop can supervise. Resistance on each 
sensor loop must be less than 100 
 with the 
detection devices connected. 
Certain UL and NFPA applications can limit the 
number of detection devices. Consult the appropriate 
UL or NFPA standards. 
The OctoPOPIT detects open, short, closed, normal, 
and grounded circuit conditions on its sensor loops 
and sends the conditions to the control panel. Each 
sensor loop has an assigned point number and sends 
signals to the control panel separately. 
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. 
The OctoPOPIT has two rows of terminal numbers. In 
the row nearest 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 1 k
Ω
 
EOL resistor. Attach a resistor even if you do not 
enable the loop. The OctoPOPIT includes a D105BL 
resistor for each sensor loop. Refer to Figure 23 on 
page 49. 
Do not duplicate point assignments. Points do not 
function properly if assigned to an OctoPOPIT sensor 
loop and a POPIT, to two OctoPOPIT sensor loops, or 
to two POPITs. 
Figure 23:  D8128D OctoPOPIT Sensor Loops 
COM IN OUT+12V P1 COM P2 P3 COM P4 P5 COM P6 P7 COM P8
1
2
3
4
5
1 -  D8128D OctoPOPIT 
2 -  To control panel 
3 -  To additional OctoPOPIT sensor loops 
4 -  OctoPOPIT sensor loops 
5 -  1 kΩ EOL resistor (P/N: P105BL, package of 
eight) 
 
9.5 
Testing Off-Board Points 
Use the Service Walk Test to test off-board points. 
Test to ensure that all off-board points operate 
properly.  
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 Point (Zonex) Bus: D9412GV3 
Terminals and D7412GV3 Terminals 
on page 36.