MODEL NC405 MULTI-FUNCTION TOUCH-TONE* DECODER INSTRUCTION MANUAL

Transcription

1 15385 Carrie Drive Grass Valley, CA Tech Support: (530) Web: Sales: (800) Fax: (530) MODEL NC405 MULTI-FUNCTION TOUCH-TONE* DECODER INSTRUCTION MANUAL INTRODUCTION The Model NC405 is a unique micro-miniature Multi-Function Touch Tone* Decoder, designed for selective signaling of fleet dispatched vehicles, mobile telephone systems or for control of remote applications. The NC405 combines five distinct, multi-addressable DTMF Decoders in one highly versatile unit, offering multiple user-configurable output functions through microcontroller technology and NorComm's custom software. The NC405 decodes all 16 standard DTMF characters, with address lengths of 1 to 14 digits and features FLASH memory for storage of programmed codes, input and output functions, OTAP programming, deadbeat disable & plus Default Reset. The Model NC405 is easily programmed by means of a conventional DTMF Encoder or NorComm's Model NC501 USB /P.C. Field Programmer. All information programmed remains intact regardless of power interruptions. Coupled with NorComm's unique software design and integrated DTMF filter/detector, the NC405 equips your communications network with a high stability dynamic DTMF Decoder that is totally user friendly. SPECIFICATIONS DECODE ALGORITHM:... The Decoding Algorithm is designed to decode all possible code combinations. As an example, decoders used in the same system and programmed to codes "1", "12", "123" and "1234" will not decode improperly even though they contain the same correct codes within their sequences. SIGNAL FORMAT:... Decodes all 16 standard DTMF (Touch Tone*) characters. RELAYS 1 THRU 5... Field programmable using any of the 16 standard DTMF characters with an address length of 1 to 14 digits. REMOTE PROGRAMMING... Field programmable using any of the 16 standard DTMF characters with an address length of 3 digits. PROGRAMMING:... NOTE: This feature can be disabled. GROUP/ALL CALL:... Field programmable using any of the 16 standard DTMF characters with an address length of 1 digit. PROGRAMMING:... Field programmable by use of a standard 16 button DTMF encoder or optional Model NC501 Field Programmer. MEMORY:... Programmable data is stored in flash memory with 40 years data retention and will remain regardless of power interruptions. DECODE DELAY/INTER-DIGIT... Programmable from 200ms to 15 sec. This feature also acts as the inter-digit timeout Digit TIMEOUT counter resets to zero if programmed digits sent exceed inter-digit timeout, out of sequence or wrong digit is received. INTERFACING:... Micro-miniature 14 pin Molex header with 12" color coded cable assembly and wire screw down terminal block. INPUT LEVEL:... 10mVRMS to 650mVRMS. INPUT IMPEDANCE:... >50K Ohms CTCSS REJECTION: Hz TWIST:... ~10dB DATA RATE: to 14 Digits per second (DPS) TIME BASE:... Crystal controlled ( MHZ) 1

2 OPERATING VOLTAGE: VDC to 13VDC SIZE: W x 3.65 L x 0.50 H without optional plastic enclosure. MOUNTING:... Corner mounting holes for 6-32 screws or optional plastic enclosure. OUTPUT RELAYS:... All relays are single form C contacts rated at 1 AMP QUIESCENT CURRENT:... <10mA (No relays activated) DIAL TONE REJECTION:... Notches at 350Hz and 440Hz OPERATING TEMPERATURE: C to +80 C TONE ACCEPTANCE B.W % -- SPECIFICATIONS ARE SUBJECT TO CHANGE IN THE INTEREST OF TECHNICAL -- IMPROVEMENT WITHOUT NOTICE OR OBLIGATION -- THEORY OF OPERATION DECODER: Relay outputs 1, 2, 3, 4 and 5 address codes are field programmable using any of the 16 standard DTMF characters with an address length of 1 to14 digits. Upon a valid decode, the chosen relay provides the following user selectable functions: Latched Output, Momentary Output, Transponder Functions and TX Tone. Relay 1 DEFAULT= [CODE 111], Relay 2 DEFAULT= [CODE 222] Relay 3 DEFAULT= [333], Relay 4 DEFAULT= [444], Relay 5 DEFAULT= [555]. All decoders are preprogrammed to factory default setting, and are noted under each feature in [BRACKETS]. The factory default reset feature, when activated, resets all programmed features to factory default values. This is helpful if programmed configurations are unknown. Decode Output:... Relays 1 through 5 can be individually programmed as latched or momentary. DEFAULT= [LATCHED.] Decode Delay:... Program selectable for a decode delay of 0.2 to 15 seconds from end of last digit in code Sequence. DEFAULT= [1 SEC.] Transponder Functions:... Transpond RELAY is program selectable for a duration of Ø to 15 seconds. Transpond will terminate upon programmed duration, call reset or activation of Reset input. DEFAULT= [2 SEC.] Call Reset:... The Reset digit can be selected from any 1 of the 16 standard DTMF characters. Upon reception of the Primary code followed by the selected Reset digit, all Primary decoded functions are reset and then acknowledged by a steady Transpond Tone for selected duration. All reset digits DEFAULT= [#]. Group Call:... The Group Call address code is field programmable using any 1 of the 16 standard DTMF characters. Upon reception of a single-digit Group Call address for duration of 3 seconds, all Primary Decoder functions will be activated with the exclusion of Transpond Output Functions. DEFAULT= [8] All Call:... The All Call address code is field programmable using any 1 of the 16 standard DTMF characters. Upon reception of a single-digit All Call address for a duration of 3 seconds, all Primary Decoder functions selected will be activated with the exclusion of Transpond Output Functions. DEFAULT= [9] Group Call Reset:... The Group Call Reset digit can be programmed from any 1 of the 16 standard DTMF characters. All Primary decode functions are reset upon reception of Group Call address followed by reset digit for a duration of 3 seconds. DEFAULT= [*] All Call Reset:... The All Call Reset digit can be programmed from any 1 of the 16 standard DTMF characters. Connect to receiver's squelch circuitry that provides a ØVDC (Ground) when channel is busy. All Primary decode functions are reset upon reception of All Call address followed by reset digit for a duration of 3 seconds. DEFAULT= [#] Reset Input:... Resets all decoded functions when line is taken low. PTT Keying:... Relay output 6 is connected to PTT circuitry of the transmitter. 2

3 INTERFACING INSTRUCTIONS The Model NC405 comes complete with factory programmed default settings (See "Theory of Operation" above). Although the Model NC405 is engineered for maximum immunity to R.F., it is suggested that all leads be kept to minimum lengths and away from transmitter final circuitry. RED... Connect to 11.0 VDC to 13 VDC. WARNING: Do not connect to a D.C. source with a slow rise time as [+SUPPLY] it will affect the power-on reset of the microprocessor. BLACK... Connect to system ground. [-SUPPLY] BROWN... "LOW" (To ground) when grounded this will reset all decoded functions. [RESET] BLUE/WHITE... Connect to speaker. Adjust R11 for desired audio level. [ALERT/ PROGRAM CONFIRMATION TONE OUTPUT] GREEN... Connect to receiver audio output circuitry such as the discriminator, or any amplifier stage NOT [AUDIO INPUT] controlled by the squelch circuitry. NOTE: Audio input circuitry is designed for input levels of 10mVRMS to 350mVRMS. PROGRAMMING INSTRUCTIONS The Model NC405 is field programmable via the 16 standard DTMF characters. Any DTMF encoder may be used; or if one is unavailable, an inexpensive field programmer is available from NorComm. *Note: Programming using the NC501 USB Programmer, you must remove the BROWN wire. In order to program the NC405, the unit must have power applied and the audio input (GREEN wire) connected to encode out of the DTMF encoder. If the NorComm Field Programmer is being utilized, simply plug the NC405 into the plug assembly. Audio confirmation is provided via the tone alert while in the programming mode. The use of this output is recommended for ease of programming. NOTE: The NC405 can be reset to factory defaults at any time by entering the Reset Factory Default Code: 0#00 The program mode is entered by removing solder jumper JU1. Any feature may be programmed in any order. Each key entry is confirmed by a corresponding light flash. Each correctly entered program line is accepted with a series of audible beeps. Any error or invalid program line entry results in a 1 second tone (the feature being programmed remains unchanged). The program line consists of the following entries: an *, followed by the address number of the desired feature, followed by a #, followed by the index number (if used) and the parameters. Examples: To program Relay 1 code of 1234: 1. Disconnect power. 2. Remove solder jumper JU1. 3. Connect audio input to DTMF Encoder. 4. Connect audio output or monitor Program Verify LED for programming confirmation. 5. Apply power. 6. Enter * 1 # 1234 and wait for confirmation. 7. Remove power and replace solder jumper JU1 or continue programming. To program Transpond time for 5 seconds: 1. Disconnect power. 2. Remove solder jumper JU1. 3. Connect audio input to DTMF encoder. 4. Connect audio output or monitor Program Verify LED for programming confirmation. 5. Apply power. 6. Enter * 7 # 65 and wait for confirmation. 7. Remove power and replace solder jumper JU1 or continue programming. REPROGRAMMING OF O.T.A.P. ACCESS CODE Example: To change the factory pre-programmed OTAP access code from 789, perform the following. 1. Disconnect power. 2. Remove solder jumper JU1. 3. Connect audio input to DTMF Encoder. 4. Connect audio output or monitor Program Verify LED for programming confirmation. 5. Apply power. 6. Enter * A # and three digit code and wait for confirmation. 3

4 7. Remove power and replace solder jumper JU1. 8. NOTE: OTAP Programming cannot be used to change the OTAP access code. NOTE: The Model NC501 USB P.C. programmer can be used to enable and program this feature. O.T.A.P. PROGRAMMING Example: To use OTAP programming to change primary code to 1234, let's assume an access code of [789] 1. Key transceiver (transceiver must have a DTMF encoder). 2. Enter 789 * 555 * 1 # 1234 (A 2.5 second timeout is in effect once programming function is started. The OTAP programming function will terminate if there is a pause exceeding 2.5 seconds.) 3. Wait for transpond acknowledgement. Programming is completed. 4. To program another feature, start again at step 1 and repeat the same procedure using 789 * 555, followed by the address code, timed output or decoded output configuration to be programmed. OPTIONAL PROGRAMMER The Model NC501 USB /P.C. Programmer is a small, smartly styled plastic enclosure for programming of the Model NC405 DTMF Decoder. The Model NC500 menu driven software provides all programming data to be input or read from the NC405 and edited on the screen along with a print-out of all data. Software is supplied on compact disk and operates under WINDOWS on any IBM-PC or Compatible computer. For further details concerning this option, call Decoders may be ordered pre-programmed to customer s specifications for an additional charge. COMPONENT LOCATOR 4

5 SCHEMATIC 5

6 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 with prior authorization, 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. 6

7 PROGRAMMING WORKSHEET The NC405 Programming Worksheet was developed to assist you in programming the decoder and to give you a permanent record for future reference. Fill in the highlighted squares with address, desired limits for the timed outputs and decode input/output configuration with the desired DTMF digit. Start programming the NC405 by following the programming instructions on page 6 of the Instruction Manual and referring to this Programming Worksheet. Input each number exactly as it is shown on your Programming Worksheet, including all blocks, highlighted and un-highlighted. CUSTOMER VEHICLE I.D. DATE RADIO MAKE RADIO MODEL SERIEAL NO. ADDRESS CODES SET RELAY 1 DECODE CODE # --- SET RELAY 2 DECODE CODE # --- SET RELAY 3 DECODE CODE # --- SET RELAY 4 DECODE CODE # --- SET RELAY 5 DECODE CODE # --- SET RELAY 1 RESET CODE # 1 SET RELAY 2 RESET CODE # 2 SET RELAY 3 RESET CODE # 3 SET RELAY 4 RESET CODE # 4 SET RELAY 5 RESET CODE # 5 OTAP PROG. ACCESS CODE A # --- ( /# invalid) GROUP Call/Reset # --- ( to disable) ALL Call/Reset # --- ( to disable) FACTORY DEFAULTS # 0 0 7

8 TIMED OUTPUTS RELAY # 1 = RELAY # 2 = RELAY # 3 = RELAY # 4 = RELAY # 5 = PTT RELAY (TX Tone) # 6 = DECODE DELAY # 7 NOTES TIMED OUTPUTS o = Latched (NOTE: PTT Relay and TX Tone are momentary only) 1 = 1 Second 8 = 1 Minute 2 = 2 Seconds 9 = 2 Minutes 3 = 3 Seconds = 3 Minutes 4 = 4 Seconds # = 4 Minutes 5 = 5 Seconds 6 = 6 Seconds 7 = 7 Seconds DECODE DELAYS o = 200 ms 6 = 6 Seconds 1 = 1 Second 7 = 7 Seconds 2 = 2 Seconds 8 = 8 Seconds 3 = 3 Seconds 9 = 9 Seconds 4 = 4 Seconds = 10 Seconds 5 = 5 Seconds # = 12 Seconds 8