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D9412GV2/D7412GV2 | Operation and Installation Guide | 10.0  Off-Board Relays 
 
50 
Bosch Security Systems, Inc. | 5/05 | F01U003641B 
 
To install OctoRelays in the enclosure with the control 
panel: 
1.
 
Align the module with one of the mounting 
locations in the enclosure (refer to Figure 2 on  
page 9).  
2.  Using the screws provided with the module, secure 
the module in the enclosure. 
 
Use the D137 Mounting Bracket or D9002 
Mounting Skirt to install OctoRelays in enclosures 
with no available module mounting locations.  
10.1.4 Wiring 
Connections 
Power down the control panel to connect OctoRelays. 
Refer to Figure 20 on page 48 and Figure 21 on page 49.  
 
 
OctoRelays for Relays 1 to 64 connect to 
Zonex 1, Terminal 28. 
OctoRelays for Relays  65 to 128 connect 
to Zonex 2, Terminal 26 on the D9412GV2 
only. 
Only one OctoRelay is shown wired to each Zonex bus 
in Figure 20 on page 48and Figure 21 on page 49. Wire 
additional OctoRelays in parallel. Review Section 6.0 
Power Outputs 
on page 25 for information about 
providing enough power for the relays. 
The number of D8129 OctoRelays that can be 
connected to each Zonex terminal on the D9412GV2 
control panels is limited by the number of D8128D 
OctoPOPITs connected. 
 
 
Using D8129 OctoRelays and D8128D 
OctoPOPITs together on the same Zonex 
terminals is limited and depends on the 
number of D8128 OctoPOPITs and D8129 
OctoRelays connected to a single Zonex 
Bus. 
Refer to Table 19 for information about the 
maximum number of D8128Ds and 
D8129s you can connect to a single Zonex 
bus.  
 
Table 19:  Number of D8128Ds Used with 
D8129s 
 
If the number of 
D8128Ds connected to a 
single Zonex bus is: 
Do not connect more than 
this number of D8129s: 
10 5 
11 
12 3 
13 
14 1 
 
10.2  D811 Arm Status Relay Module 
The D811 Arm Status Relay Module allows the 
addition of a single off-board relay output to the 
system. Alarm output, auxiliary relay, sensor reset, 
arming status, point status, alarm memory, or remote 
functions can be assigned to the D811 relay output. It is 
not restricted to the Arming Status Mode only.  
Relay Numbers for D811 Not Programmable: If the 
D811 is connected to Zonex 1, Terminal 28, use relay 
number 53 for the relay output. If the D811 is 
connected to Zonex 2, Terminal 26 on the D9412GV2, 
use relay number 117 for the relay output.  
D811 Modules connect as shown in 
Figure 22
 on page 
51and Figure 23 on page 52. Review Section 6.0 Power 
Outputs
 on page 25 to ensure that enough power is 
provided for the powered devices that connect to the 
system. Refer to Relay Parameters in the 
D9412GV2/D7412GV2 Program Entry Guide  
(P/N: F01U003636) for programming details.  
D811 Restricted for Fire Systems: The D811 relay 
output is not supervised and cannot be used in fire or 
combined fire and burglary installations for primary 
indication devices. 
10.2.1 Relay 
Output 
 
 
Relay outputs can activate when you are 
programming the control panel.  
Disconnect equipment connected to relay 
outputs when you perform this function. 
Each D811 relay output provides a Form C dry contact 
rated for 1.0 A at 12 VDC. Normally-open, common, 
and normally-closed terminals are available. When an 
individual output is activated, continuity exists between 
the normally-open and common terminals. When the 
output is not activated, continuity exists between the 
normally-closed and common terminals.