Related Manuals for Midian BTD-2 MOD-1272 Addendum
Summary of Contents for Midian BTD-2 MOD-1272 Addendum
- Page 1 BTD-2 Burst Tone Decoder BTD-2 MOD-1272 Addendum Motorola MDC-1200 ANI Mute Option Manual Revision: 2013-07-19 Covers Software Revisions: BTD-2: 1.0 & Higher Covers Hardware Revisions: UED-1: 7283C...
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Page 2: Specifications
SPECIFICATIONS Operating Voltage 5.5-15 VDC Operating Current 3 mA Operating Temperature -30 - +60 C Input Level 25-500 mV RMS Input Impedance 100 K Ohms Frequency Range 300-3000 Hz SINAD Ratio < 9 dB Burst Tone Band Width ± 1.5% Momentary Output 200 mA Dimensions... -
Page 3: Product Programming
Tone Detect Time: This time is programmable for 0.00 to 0.99 seconds. This is the length of time that the burst tone must be present prior to the BTD-2 decoding the tone. Midian recommends setting this to at least 0.30 to avoid falsing. - Page 4 COR Polarity: This sets the polarity the BTD-2 looks for to see COR as active, GND (Ground) or V+ (+5 V). The BTD-2 looks for an active COR to validate a tone, so as not to false. The unit also resets the latched outputs by seeing COR go inactive.
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Page 5: Hardware Installation
HARDWARE INSTALLATION Be certain to follow standard anti-static procedures when handling any of Midian’s products. P1-4 – Black – Ground – Connect to the nearest ground point. P1-2 – Red - +5.5 – 15 VDC – Connect to switched B+ in the radio. -
Page 6: Operation
OPERATION The BTD-2 is designed to work in 2 configurations: 1. Remote Control/Alert: Upon decoding of the burst tone, the BTD-2 will activate the Horn and Monitor/Squelch Outputs. The horn output will go momentarily low for the 0-9 seconds programmed. The Monitor Squelch output will remain latched until reset. - Page 7 BTD-2 MOD-1272 ADDENDUM Overview: MOD-1272 adapts a BTD-2 to mute ANI signaling packets, in particular Motorola’s MDC-1200 packets. It may also work with other signaling protocols that have a known single-tone preamble. In the case of MDC, there is a preamble of 1800 Hz for approximately 27 msec. MOD-1272 changes the BTD-2 so that it is less susceptible to falsing on voice as well as eliminating the need to connect the COR input.
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Page 8: Technical Notes
TECHNICAL NOTES Continuous Decode: The BTD-2 does not support continuous tone decode. For this feature the BTD-1 should be ordered instead. MIDIAN CONTACT INFORMATION MIDIAN ELECTRONICS, INC. 2030 N. Forbes Blvd. #101 Tucson, Arizona 85745 USA Toll-Free: 1-800-MIDIANS Main: 520-884-7981 E-mail: sales@midians.com... - Page 9 SCAN/DISABLE OUT/HORN OUT[GRY/W] SCAN/DISABLE OUT/HORN OUT[GRY/W] P1:10 NOTES: TO USE JU1, REMOVE R63 TO USE JU3, REMOVE R21 5.5V - 15V VIN[RED] 5.5V - 15V VIN[RED] P1:2 MIDIAN ELECTRONICS, INC. 7.5K DOCUMENT NAME 560p .001u .47u .47u 560p BTD-2 5206...
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