EN | 47
D9412G/D7412G | Operation & Installation Guide |
Bosch Security Systems | 10/03 | 43488E
8.0 Off-Board Points
Using Molex Connectors
Each D8128D Module is supplied with a 30 cm (12 in.)
female-to-female Molex cable assembly.
P1 and P2 are Molex connectors that parallel the COM,
IN, OUT, and +12 VDC terminals on the terminal strip.
In installations with multiple D8128Ds, use these
connectors (as opposed to terminals) with the supplied
cable. However, when connecting D8128D Modules
directly to the panel, the terminal strip is easier to use.
The Molex connectors provided are "keyed" (Molex
plug can only fit in one direction). Ensure the connector
is attached correctly: the red wire is on the bottom of P1
(or P2) and the black wire is on the top.
When connecting multiple D8128Ds to a control panel,
you may connect the control panel terminals to P1 or
the COM, IN, OUT, and +12V terminals on the first
D8128D. Then connect P2 of the first D8128D to P1 of
the second D8128D and so on (see Figure 20 ).
8.4.7 OctoPOPIT Sensor Loops
Only the resistance on the loop limits the number of
normally-open and/or normally-closed detection devices
each sensor loop can supervise. Resistance on each
sensor loop must be less than 100 Ω 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
transmits the conditions to the panel. Each sensor loop
is assigned a point number and transmits to the 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.
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 1 kΩ
EOL resistor. Attach a resistor even if you do not enable
the loop. The OctoPOPIT includes a D105BL resistor
for each sensor loop.
Do not duplicate point assignments. Points do not
function properly if assigned to both an OctoPOPIT
sensor loop and a POPIT, two OctoPOPIT sensor
loops, or to two POPITs.
Table 14: Terminal Strip Connections
D8128D D9412G D7412G
Common
Terminal 23 Terminal 9
ZONEX 1 = Terminal 27Out
ZONEX 2 = Terminal 25
Terminal 27
ZONEX 1 = Terminal 28In
ZONEX2 = Terminal 26
Terminal 28
+12 V Terminal 24 Terminal 3
Figure 20: Wiring Multiple D8128Ds Using Molex Connectors
COM IN OUT+12V
P1
P2
COM
IN OUT+12V
P1
P2
28
27
26
25
24
23
COM
IN OUT+12V
P1
P2
1
4
5
2
3
6 7 8
9
6 - First D8128D
7 - Second D8128D
8 - Third D8128D
9 - Up to 15 per ZONEX Bus
1 - D9412G/D7412G Control Panel
2 - Yellow
3 - Green
4 - Black
5 - Red
To Next Page
Loading...
Need help?
General
