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F220 Series Detectors with F220-B6/C/E/R Bases Install the Bases | en 15
Bosch Security Systems, Inc. Installation Manual 4998138694 -04 | 2007.01
unnecessary. Use only one F220-B6E per zone run. It must be
the last base on the run. Refer to Figure 3.4 for wiring details.
* F220-B6E Bases can only be used at the end of a loop.
The alarm loop relay (Form A, Terminals 1 and 2) and the power
supervision relay (Terminal 3 and 4) are rated for 0.5 A at
120 VAC/DC for resistive loads.
1. Power input (positive [+]
in on terminal b2; negative
[-] in on terminal a1/a2)
from the control panel or
from a previous four-wire
base.
2. Initiating device circuit
(IDC) input (positive [+] to
terminal 2 and negative [-]
to terminal 1) from the
control panel or from a
previous four-wire base.
3. Jumper connecting
terminals 2 and 3.
4. Place an appropriate EOL
resistor (refer to the
control panel’s installation
instructions for resistor
specifications) across
Terminals 1 and 4.
5. Power Supervision Relay
6. Alarm Loop Relay
Fig. 3.4 Wiring F220-B6E Four-wire Power Supervision Bases
+
_
_
+
3
5
4
2
1
NO
C
NO
C
b1
b2
ca1/a2
F220-B6E*
1
6
5
3
4
2
4998138694Er7.book Page 15 Thursday, March 1, 2007 8:42 AM