The radio expanders for the i-on160EX provide channels for either 10 radio detectors (EXP-R10) or 30 radio detectors (EXP-R30). In addition each radio expander provides channels for:
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Two i-rk01 radio keypads.
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Two 760ES external radio sounders.
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Two Wireless Accessory Modules (WAMs).
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Each radio expander also provides wired connections for a Loudspeaker.
Note: The total number of radio detectors that can be handled by an i-on160EX control unit depends partly on the density of radio transmitters within a given volume. If there are more than 30 transmitters within 10 meters radius of an expander then some mutual jamming may occur.