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F220 Series | Installation Instructions | 4.0
If using the optional DRA-5 Remote Alarm Indicator,
connect the positive (red) lead to terminal b1 and the
negative lead (white) to terminal c.
Figure 5:
Remote alarm indicator
1
3
4
1 - DRA-5 remote alarm indicator
2 - Two-wire detector base
3 - Red wire (b1)
4 - White wire (c)
Figure 6:
F220-B6R in a four-wire configuration with D275
7
3
3
1
4
–
+
5
1 - D275
2 - Alarm loop
(Terminals 1 and 2)
3 - Blue wire (Terminal 1 and EOLR, D275)
Bosch Security Systems | 8/05 | 4998138694D
Wiring information
2
b2
b1
a1/a2
c
1 2
3
b2
b1
NO C
a1/a2
c
6
4.2
Four-wire detector wiring information
One
per loop is required when using
D275
the F220-B6RS base.
Terminal Connections: Do not twist or loop the wires
around the terminals. In/Out wires for terminal
connection must be cut, stripped, and inserted as
individual ends.
EOL Resistors: Use the EOL resistors supplied or
specified by the control panel manufacturer. This also
applies to the
Module.
D275
D275 Power Supervision Relay: When used with
12 VDC systems, connect the red wire to Terminal b1
on the last base in the run. The yellow wire remains
unconnected. For 24 VDC systems, connect the yellow
wire to Terminal b1. The red wire remains
unconnected. (See Figure 6).
One D275 or F220-B6E per loop is
required when using the F220-B6R/B6C
bases.
3
1 2
b2
b1
NO C
a1/a2
c
4 - Black wire (D275, Common)
5 - Yellow wire (D275 for 24 V systems)
6 - Red wire (D275 for 12 V systems)
7 - EOL resistor
EN | 6
2
1 2
3
b2
b1
NO C
a1/a2
c
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