Installing i-on Control Units
Page 41
Please refer to Table 1 on page 7 for details of the number of devices that can connect to
the bus, and to page 23 for guidance about
bus cabling. See also “RS485 bus termination
link” and “Engineer keypad port” in this section.
f
Wired outputs
Note:
Not available in i-on Compact.
Wired outputs can be used to switch external equipment on or off.
Relay outputs (if available) are voltage-free. Connect to the common terminal and to either
the NC (Normally Closed) or NO (Normally Open) terminal, as required.
Open-collector (transistor) outputs are, by default, 12Vdc when inactive and 0V when
active (this can be reversed from the Installer menu).
Note:
Radio outputs can also be used if the control unit has built-in radio communications
(i-on40H+, i-on30R+ and i-on Compact), or if a radio expander is used (not available for i-
on Compact).
g
Loudspeaker connections
Note:
Not available in i-on Compact.
If fitted, a loudspeaker mimics alarm tones and repeats setting and entry tones. The
loudspeaker must be min 16 Ohms.
Note:
A loudspeaker is not a warning device as described by EN50131-4.
You can set the loudspeaker volume and partitions from the Installer menu.
h
Siren/strobe connections
Note:
Not available in i-on Compact.
Please refer to the installation instructions provided with the siren/strobe unit for
connection details.
Note:
Scantronic radio siren/strobe units can be used instead of, or in addition to, a wired
unit (requires a radio expander if the control unit does not have built-in radio
communications).
i
Wired zone connections
Note:
Not available in i-on30R+ and i-on Compact.
You can connect up to 10 wired detectors (0 to 9) using the Fully-Supervised Loop (FSL),
4-wire Closed Circuit (CC) or 2-wire CC wiring method (Figure 24). You must use the
same method for all detectors connected to the control unit. If 4-wire CC is used, the
number of zones is halved. To maintain ten 4-wire CC zones, fit an ADP-10CC board and
configure the resistance setting of each zones as 2k2/4k7.
For any method, the total wiring and switch resistance must be less than 100 Ohms (EOL
resistor shorted in the case of FSL).
By default, the system assumes normally-closed contacts. Detectors with normally-open
contacts must be programmed with the “Inverted” attribute set.
Note:
If you are using a detector with an anti-mask contact, use 2k2 EOL, 4k7 alarm, and
2k2 anti-mask resistors; see the
Configuration Guide
.