Bosch Appliances Home Security System D7212G User Manual
D7212G Operation and Installation Guide
Page 22
© 2003 Bosch Security Systems
4998138544C
D7212G
Installation
3.4
Installing the Assembly
1.
Place the assembly over the inside back of the enclosure, aligning the large rectangular openings of the
mounting skirt with the mounting hooks of the enclosure. Slide the assembly down so it hangs on the hooks.
See Figure 2 on page 21.
mounting skirt with the mounting hooks of the enclosure. Slide the assembly down so it hangs on the hooks.
See Figure 2 on page 21.
2.
Remove the tape from the #6x1/4-in. screw in the mounting tab on the assembly. The screw passes through the
mounting tab and into the skirt mounting hole in the enclosure. Tighten the screw to secure the assembly in the
enclosure.
mounting tab and into the skirt mounting hole in the enclosure. Tighten the screw to secure the assembly in the
enclosure.
3.
Connect earth ground to the panel before making any other connections. See Section 3.5 Connecting Earth
Ground.
Ground.
3.5
Connecting Earth Ground
3.5.1
Terminal
To help prevent damage from electrostatic charges or other transient electrical surges, connect the system to earth ground at
Terminal 10 before making any other connections. A grounding rod or cold water pipe are recommended earth ground
references.
Terminal 10 before making any other connections. A grounding rod or cold water pipe are recommended earth ground
references.
CAUTION
Do not use telephone or electrical ground for the earth ground connection. Use 14-16 AWG wire when making the
connection. Do not connect any other panel terminals to earth ground.
connection. Do not connect any other panel terminals to earth ground.
3.5.2
Ground Fault Detect Enable
GROUND FAULT is defined as “a circuit impedance to Earth Ground of
approximately 95 kilohms or less.” The panel will detect a ground fault on
Terminals 1-9 and Terminals 11-32 if the Ground Fault Detect Enable jumper
(S4) (see Figure 3) is locked (closed) and a non-zero value is entered in Area 5
Silent Alarm Relay (see the D7212G Program Entry Guide [P/N: 4998138538]).
When the jumper is in the unlocked (open) position, the panel will not detect
ground fault conditions. If a ground fault condition occurs, the command
centers will display SERVC GND FAULT and the panel will transmit a
TROUBLE REPORT GROUND FAULT AREA (Modem IIIa
approximately 95 kilohms or less.” The panel will detect a ground fault on
Terminals 1-9 and Terminals 11-32 if the Ground Fault Detect Enable jumper
(S4) (see Figure 3) is locked (closed) and a non-zero value is entered in Area 5
Silent Alarm Relay (see the D7212G Program Entry Guide [P/N: 4998138538]).
When the jumper is in the unlocked (open) position, the panel will not detect
ground fault conditions. If a ground fault condition occurs, the command
centers will display SERVC GND FAULT and the panel will transmit a
TROUBLE REPORT GROUND FAULT AREA (Modem IIIa
2
format only). In
order for the panel to detect a ground fault condition, the panel must see the
ground fault for at least 30 consecutive seconds. When the panel recognizes
that ground fault condition is corrected, a RESTORAL report is sent. For the
restoral condition to be met, the ground fault must have been corrected for
between 5 and 45 consecutive seconds.
ground fault for at least 30 consecutive seconds. When the panel recognizes
that ground fault condition is corrected, a RESTORAL report is sent. For the
restoral condition to be met, the ground fault must have been corrected for
between 5 and 45 consecutive seconds.
IMPORTANT
The D7212G Control/Communicator logs and prints a Ground
Fault event as a Trouble Point 256 if communicating in Modem
IIIa
Fault event as a Trouble Point 256 if communicating in Modem
IIIa
2
format. If communicating in BFSK format, the D7212G
Control/Communicator generates an Alarm Zone 5 event.
3.5.3
Locking the Reset Pin
Locking the Reset Pin disables the panel. See Figure 4. The system ignores the
command centers and points while disabled.
command centers and points while disabled.
CALL FOR SERVICE
appears in command center displays while the pin is locked down.
On-board relays (Terminals 6, 7, and 8) and off-board relays deactivate
when the panel is reset. There is power at Terminal 8 when the relay is
deactivated. Activation interrupts power at that terminal. The relays remain
deactivated while the Reset Pin is locked in the disable position.
when the panel is reset. There is power at Terminal 8 when the relay is
deactivated. Activation interrupts power at that terminal. The relays remain
deactivated while the Reset Pin is locked in the disable position.
GROUND FAULT DETECT
Enabled
Disabled
Disabled
PHONE
LED
LED
RED
ON WHEN
COMMUNICATING
OFF WHEN IDLE
COMMUNICATING
OFF WHEN IDLE
LOOP START
PHONE MONITOR SELECT
GROUND START
Requires
Relay Model
D136 in Ground
Start Socket
GND START
GROUND FAULT
DETECT ENABLE
DETECT ENABLE
S4
With S4 closed, panel detects
ground faults.
ground faults.
With S4 open, panel does not
detect ground faults.
detect ground faults.
Figure 3: Ground Fault Detect
Reset Pin
Disable All Except Battery
Charging And Programming
PERIPHERAL DEVICE CONNECTIONS
RED
POWER +
YELLOW
DATA BUS A
GREEN
DATA BUS B
BLACK
COMMON
32
31
30
29
RESET PIN
LOCKED (CLOSED)
RESET PIN
NORMAL (OPEN)
Figure 4: Reset Pin