CPI Communications DTS1 User Manual
Dc to tone convertor
DC to Tone Convertor
PTT(F1)
PTT(F2)
MON(F1) MON(F2)
GUARD
TONE
FUNCTION
TONE(F1)
FUNCTION
TONE(F2)
MONITOR
TONE
+/- 15 mA
2175 Hz
1950 Hz
+/- 6 mA
2175 Hz
1950 Hz
+/- 15 mA
+/- 6 mA
2175 Hz
1950 Hz
2050 Hz
+ 15 mA
- 6 mA
2175 Hz
1950 Hz
2050 Hz
+/- 6 mA
+/- 2.5 mA
2175 Hz
1950 Hz
2050 Hz
+ 6 mA
- 2.5 mA
2175 Hz
1950 Hz
2050 Hz
+ 15 mA
+ 6 mA
- 2.5 mA
-2.5 mA
2175 Hz
1950 Hz
1850 Hz
2050 Hz
+ 15 mA
- 15 mA
+ 6 mA
-6 mA
2175 Hz
1950 Hz
1850 Hz
2050 Hz
The DTC1 DC to Tone convertor converts your exisitng DC remote control system to the industry
standard sequential tone format used by Motorola, GE, and other manufactureres. With the ad-
dition of the CPI DTC and a CPI TTP series tone panel or equivalent, you can continue to use the
exisiting DC remotes after losing your hard-wire lines to a phone company conversion to voice
grade circuits. A CPI TTP series tone panel or equivalent will need to be installed at the transmit-
ter. The DTC1 provides adjustible audio amplification in both directions as well as a 2175 notch
filter in the receive audio path to notch out the hold tone from any parallel remotes that may be
on the system. The DTC1 is dip switch programmable to recognize one of eight DC current con-
figurations contained in the chart below.
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