Download MODEL NC111 SINGLE TONE ENCODER INSTRUCTION MANUAL

15385 Carrie Drive
Grass Valley, CA 95949
Office: (530) 477-8400
Tech Support: (530) 477-8402
FAX: (530) 477-8403
Sales: (800) 874-8663
Email: [email protected]
Web: www.norcommcorp.com
MODEL NC111 SINGLE TONE ENCODER
INSTRUCTION MANUAL
INTRODUCTION
The Model NC111 is a high stability, field tunable, Single Tone Encoder and has been designed for both burst or continuous tone requirements. The Model NC111
is generally used in conjunction with a Single Tone Decoder, such as our Model NC108, for control of remote applications. The NC111 comes in two versions:
The NC111-A High Speed (800Hz to 3000Hz) and the NC111-B Slow Speed (280Hz to 1500Hz).
GENERAL
Although the Model NC111 Single Tone Burst Encoder has been engineered for maximum reliability and ease in interfacing, should you require technical assistance
or detailed information for a specified application, i.e.; interfacing special timing or frequency formats, please contact our Customer Service Department at: (530)
477-8400.
SPECIFICATIONS
MODEL:
Signal Format:
Frequency Range:
Freq. Stability:
Output Level:
Output Impedance:
Filter Distortion:
Operating Voltage
Operating Current
Operating Temp.:
Size:
Mounting:
Interfacing:
NC111-A
Single tone
(800Hz to 3000Hz)
Better than ± 0.5%
0 to 750mVrms (no load)
>1K Ohms
+1% (Thd)
7VDC to 25VDC
4mA Nominal
-30EC to +70EC
1.0W x 1.0"L x .18"H
Double sided adhesive tape
12" flying colored leads
NC111-B
Same
(280Hz to 1500Hz)
Same
Same
Same
Same
Same
Same
Same
Same
Same
Same
WARRANTY POLICY
NorComm products are unconditionally guaranteed for two (2) years on materials and labor from date of purchase.
All Warranty repairs must be performed at NorComm's Customer Service Department in Grass Valley, CA. Units under warranty can be returned for repair or
replacement without prior authorization, however, a letter explaining the defect should be enclosed with the unit. Out of warranty units returned constitute
Purchaser's authorization for NorComm to repair or replace equipment and to invoice Purchaser for any and all reasonable costs of repair labor, parts and freight.
NorComm shall not be obligated to repair or replace equipment rendered defective, in whole or in part, by causes external to the equipment, such as, but not limited
to, catastrophe, power failure, or transients, environmental extremes, improper use, and maintenance or interfacing applications. NorComm further assumes no
liability for any incidental or consequential damages which may result from the applications of its products by the Purchaser or any other party.
--SPECIFICATIONS ARE NOMINAL AND SUBJECT TO CHANGE WITHOUT NOTICE--
NC111 REV. C
09/99
1
INTERFACING
The Model NC111 comes with a piece of double sided adhesive tape to eliminate the need for mounting hardware. When tuning of the filter is completed, remove
the protective covering from one side of the tape and apply to bottom side of P.C. Board. Make sure that location of mounting surface is clean and dry to insure
positive mounting. Now remove protective cover from remaining side of tape and mount unit to desired locations. To insure maximum operations reliability, the
decoder should be mounted away from intensive R.F. and magnetic fields and all leads should be kept to minimum lengths.
[1]
RED (+) . . . . . . . . . Connect to 7VDC to 25VDC
[2]
BLACK (-) . . . . . . . Connect to system ground.
[3]
YELLOW . . . . . . . . Connect to audio input circuitry.
[4]
For burst operation, cut jumper JU1. Duration is factory selected for 300ms. For 500ms, cut resistor R14; for 1 second, cut R13.
[5]
Signal output is usually applied directly to microphone input circuitry loading due to the low output impedance of the encoder.
[6]
To select frequency, apply power, making sure JU1 is installed and adjust R7 for desired frequency. Adjust R8 for required tone output level.
COMPONENT LAYOUT
NC111A
REV C
R9
R5
R6
R7
U2
C4
U1
C2
R R
11 13
C7
R3 R4
R
10
C5
R12
R8
R1
R2
CR1
C1 +
C3
C8
NORCOMM
R R
14 15
U3
JU1
C6
+
1999
C
AUDIO OUTPUT YELLOW
BLACK
GROUND
RED
+5.5-20VDC
SCHEMATIC
R6
R7
3 10K 1
2
CW
1.0K 1%
R5
2
5600PF NPO
5600PF NPO
C4
C5
1.0K 1%
VCC
R9
1
3 U1:A
+
9 R10
8
19.1K 1% 10 U1:C
+
19.1K
MC33174
MC33174 1%
13
4
14
12
11
MC33174
R4
1
+5.5- +16VCD (RED)
C8
VIN
VOUT
2 GND
U3
3 ON/OFF
NC
VCC
5
4
.1UF
+C1
2.2UF
LP2980
R1
10K
R2
8.2K
R3
3.3K
330K
R11
R12
100K
10K
C7
R13
5.6K
1000PF
C2
.1UF
JU1
+
C6
2.2UF
R14
560K
NC111 REV. C
09/99
VCC
VCC
BURST TIME
300mS
500mS
1 SECOND
1
3 U2:A
+
LM358
R8
10K
6
7
5 U1:B
+
MC33174
GND (BLK)
SOLDER JUMPER PAD JU1 FOR
CONTINUOUS TONE
2
CUT RESISTOR
NONE
R14
R15
8
CR1A
7
5 U2:B
+
1MN10(IN)
4 LM358
6
R15
270K
CR1B
1MN10(IN)
2
C3
AUDIO OUTPUT
(YELLOW)
.1UF