Crestron electronic C2N-TFM - Manual (Page 25)

Crestron C2N-TFM FM Radio Tuner
Operations Guide - DOC. 6233A FM Radio Tuner: C2N-TFM • 21
C2N-TFM Digital Input and Output Signal Descriptions (continued)
SIGNAL TYPE
AND NAME
DESCRIPTION
Input:
<FM_BandSelect> Selects the FM band for as long as the input is high.
Users can select the band by pressing the local BAND
button on the C2N-TFM; or from a remote button
defined on a touchpanel or other interface.
This signal is interlocked with the AM and WX band
selection inputs. That is, only one band can be
selected at a time. The band will be set to whichever
<bandselect> input goes high last.
If the AM/WX tuner is not used, this signal can be left
undefined.
High/1 = Select FM band; Low/0 = Exit FM band
Output:
<FM_BandSelect-F> Indicates that the FM band has been selected via the
local BAND button on the C2N-TFM.
If the band is changed from a remote button, the
feedback will not be returned on this signal.
High/1 = FM band selected via local BAND button;
Low/0 = FM band not selected via local BAND button
Inputs:
<FM_Station+>,
<FM_Station-> Tunes the FM station up (+) or down (+) on the rising
edge of the signal.
Users can tune to stations by pressing the local up (k)
and down (j) buttons on the C2N-TFM when the unit
is in TUNE mode; or from remote buttons defined on a
touchpanel or other interface.
If the input is high for longer than 300 milliseconds, the
tuner will continue to tune from station to station until:
1) the input goes low (the local or remote button is
released); or
2) it wraps around to the original station; or
3) after maximum repeats.
The tuner will jump in 100 kHz steps if in US mode; or
in 50 kHz steps if in European mode. The step rate is
selected via the <FM_US/Europe> input.
High/1 = Change station (tune button pressed);
Low/0 = Stop station changing (tune button released)
Input:
<FM_US/Europe> Selects the FM frequency step rate.
When low, the frequency is set to US steps (100 kHz).
When high, the frequency is set to European steps (50
kHz).
The tuner stores the frequency selection in the
EEPROM. On power-up, it restores this value.
High/1 = European mode; Low/0 = US mode
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