EN |
5
RF3401E
| Installation Instructions |
Bosch Security Systems | 6/03 | 42597E
4.0 Setting Up Magnetic or External Contacts
3.3
Mounting the Magnet Assembly
1.
Mount the magnet base using two panhead screws
(see Figure 8).
2. Snap on the magnet cover.
The spacer is optional and should be used
for alignment as needed.
4.0
Setting Up Magnetic or
External Contacts
The RF3401E can monitor its internal reed contact or an
external dry contact.
If using the RF3222E Receiver, the
RF3401E cannot monitor both magnetic and
external contacts simultaneously.
If using the magnet, do
not
use an external
device.
If using an external device, remove the reed
switch (see Figure 9).
One set of external normally closed (NC) contacts (see
Figure 10) can be monitored. Be sure your panel
supports the intended loop condition.
The contact input is supervised
using dual 1.5 k
Ω
and
2.2 k
Ω
End-of-Line (EOL) resistors. This lets the panel
identify wire tamper conditions (opens or shorts). The
total cable length for the external wiring should not
exceed 6 m (19 feet).
Figure 9: Remove the Reed Switch
1 - Antenna
2 - Reed switch
1
2
Figure 10: Typical NC Wiring
2
1
1.5 k
Ω
2.2 k
Ω
3
1 - Up to 6 m (19 ft.)
2 - Non-polarized
3 - Normally closed (NC) contact
Figure 8: Magnet Assembly
1 - Cover
2 - Base
3 - Spacer
3
2
1
