Omega Speaker Systems Rercorder RD8300 - Manual (Page 29)

Section 3 – Installation
Page 20
09/11/2008 REV 0.99
3.4.3.5 Potential Free Contacts
Normally open/closed contact inputs.
3.4.3.6 Frequency
Available on channels 1, 6, 7 and 12 only. Default input is for 12 to 24V DC @ 20mA max. The inputs can
be jumpered internally for 5 to 12V dc. See
Appendix B for details.
Figure 3-10 Analog Inputs - Wiring Detail
CHAN 1, 7 FREQUENCY/PULSE INPUT CHAN 6, 12 FREQUENCY/PULSE INPUT
THERMOCOUPLE VOLTAGE AND CURRENT RTDs CONTACTS
NOTE: RESISTOR FOR CURRENT ONLY
50 Ω 0.1%
0.5W