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ANN-80 Series Installation Document — P/N 52749:D3 9/30/2021
Notes:
1. All connections/sources must be power-limited and supervised.
2. 12 - 22 AWG (0.33 - 3.31 mm2) wire for 24 VDC circuit is
acceptable.
3. Power wire distance limitation is set by 1.2 volt maximum line drop
from source to end of circuit.
4. Maximum distance from FACP to last ANN-BUS device must not
exceed 6,000 feet (1,800 m). Refer to the Wiring Distance Table in
the appropriate FACP manual for wire gauge and distance
limitations.
Setting the DIP Switches
Address Setting
Each ANN-BUS device requires a unique address. DIP switches 1-4 on
S1 are used to set the address. This address will be displayed on the
LCD display as the Station ID number.
A maximum of 8 devices can be connected to the FACP ANN-BUS
communication circuit. ANN-BUS device addresses do not need to be
sequential and can be set to any number between 01 and 08. Note that 00
is not a valid address. The following illustrates the DIP switch settings
for each address (ID Number).
Communication Protocol
DIP switch 5 is used to determine the communication protocol of the
ANN-80 Series. Set DIP switch 5 to ON for ANN-BUS protocol. This
switch must stay in the ON position for proper functionality.
End-of-Line Resistor
The end-of-line termination resistor must be enabled at S1 on the last
device on the communication circuit. All other annunciators should have
these switches set to disable.
DIP switches 7 and 8 are unused.
B (ANN-BUS)
A (ANN-BUS)
+ (24 VDC)
- (GND)
Connect to FACP ANN-BUS
and/or next device
Connect to FACP or UL Listed
Power Supply for Protective
Signaling and/or next device
ANN-80 Series
Figure 3 Wiring the ANN-80 Series to an FACP
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1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
ID Number
(Address)
(not valid) 00
01
02
03
04
05
06
07
08
DIP Switch S1
1 2 3 4 5 6 7 81 2 3 4 5 6 7 8
1 2 3 4 5 6 7 81 2 3 4 5 6 7 8
termination enabled termination disabled
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