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14 en | Install the Bases F220 Series Detectors with F220-B6/C/E/R Bases
4998138694 -04 | 2007.01 Installation Manual Bosch Security Systems, Inc.
3.5.1 F220-B6C:
The F220-B6C base has a normally open alarm loop relay and
auxiliary Form C (NC/C/NO) contacts. The contacts are rated
for 0.5 A at 120 VAC/DC for resistive loads. Refer to Figure 3.3
for wiring details.
3.5.2 F220-B6E:
The F220-B6E Power Supervision Base has a normally-open
alarm loop relay that activates when the unit is in alarm and a
power supervision relay that activates when power is supplied.
Separate power supervision devices, such as the D275, are
1. Power input (positive [+]
in on terminal b2, out from
terminal b1; negative [-] in
and out from terminal
a1/a2) from the control
panel or from a previous
four-wire base and output
to the next four-wire base.
2. Initiating device circuit
(IDC) input (positive [+]
inand out from terminal 5
and negative [-] in and out
from terminal 4) from the
control panel or from a
previous four-wire base
and output to the next
four-wire base or to loop
termination (refer to
Figure 3.4 on page 15
[F220-B6E] or Figure 3.6
on page 17 [D275]).
3. Alarm Loop Relay
4. Auxiliary Form C Alarm
Relay
Fig. 3.3 Wiring F220-B6C Four-wire Bases
_
+
_
+
3
5
4
2
1
NC
NO
C
NO
C
b1b2
ca1/a2
F220-B6C
1
2
3
4
1
2
+
_
4998138694Er7.book Page 14 Thursday, March 1, 2007 8:42 AM