Digital alert systems 637 User manual

CATV Switching and Control

585-765-2254 fax 585-765-9330

100 Housel Ave. | Lyndonville | NY | 14098

www.digitalalertsystems.com

Model 637 Cue Tone Instruction Sheet

Description

Digital Alert Systems Model 637

Tone Decoder allows switch

control via Cue Tones©.

Settings may be enabled for use

of 1 to 4 Cue Tones. The output

may be made to latch, toggle or

provide a momentary pulse.

Input levels may vary from

–24 to +6 dB of audio.

Please refer to the instruction

manual for the 3185E for specific

switch and control settings.

Installation

1. Remove the four screws on the

cover of the 637. Refer to the

model 3185E manual, and set

the jumpers for latching, toggling

or momentary, and the number

of digits to decode. Then set the

3 rotary switches to the code to

be decoded.

2. Connect the device(s) to be

controlled, to the common

(COMM) and the normal open

(NO) or the normally closed (NC)

–as desired –connections on

the terminal block.

3. The connections on the terminal

block for (RELAY 1) and (RELAY

2) are separate contacts, but are

part of the same relay.

4. The (SET) and (RESET)

connections are used as

described in the 3185E manual.

5. "AudioLo and AudioHi allow

connections of the audio

containing the DTMF tones to be

decoded. They may be

balanced or unbalanced, and

600 ohm impedance or high

impedance. Refer to the 3185E

manual for jumper settings":

6. Connect the power supply’s

white wire to the +12 V DC on

the 637, and the BLACK wire to

(GND).

7. Replace the board in the case,

and reinsert the screws to

secure the case top.

Specifications

Auto Input Impedance

Selectable 60010%

>10 Kbalanced/unbalanced

Audio Input Coupling

Audio Input Level

45 mV p~p (-34 dBmV) to 13.8 V

p~p (+16 dBmV)

Audio Input Range

-24 dBmV to 6 dBmV: adjustable

10 dBmV

Digit Validation Time

40 mSec minimum

Inter-digit Time

40 mSec to 3 Sec

Set/Reset Inputs

>20 Sec to 3 Sec

Relay Output

DPDT; 2A @ 30 VDC

Power Requirement

100-240VAC, 50-60 HZ input/

12VDC output supplied.

CATV Switching and Control

585-765-2254 fax 585-765-9330

100 Housel Ave. | Lyndonville | NY | 14098

www.digitalalertsystems.com

WARRANTY

Digital Alert Systems, Inc. warrants to the owners, each instrument and sub-assembly manufactured by

them to be free from defects in material and workmanship for a period of two years after shipment from

factory. This warranty is applicable to the original purchaser only.

Liability under this warranty is limited to service, adjustment or replacement of defective parts (other than

fuses and batteries) on any instrument or sub-assembly returned to the factory for this purpose,

transportation charges prepaid.

This warranty does not apply to instruments or sub-assemblies subjected to abuse, abnormal operating

conditions, or unauthorized repair or modification.

Since Digital Alert Systems, Inc. has no control over conditions of use, no warranty is made, or implied as

to the suitability of our product for the customer's intended use.

THE WARRANTY SET FORTH IN THIS ARTICLE IS EXCLUSIVE AND IN LIEU OF ALL OTHER

WARRANTIES AND REPRESENTATIONS, EXPRESS, IMPLIED OR STATUTORY INCLUDING, BUT

NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. Except for

obligations expressly undertaken by Digital Alert Systems, in this warranty, Owner hereby waives and

releases all rights, claims and remedies with respect to any and all warranties, express, implied or

statutory (including without limitation, the implied warranties of merchantability and fitness), and including

but without being limited to any obligation of Digital Alert Systems with respect to incidental or

consequential damages, or damages for loss of use. No agreement or understanding varying or extending

the warranty will be binding upon Digital Alert Systems unless in writing signed by a duly authorized

representative of Digital Alert Systems.

In the event of a breach of the foregoing warranty, the liability of Digital Alert Systems shall be limited to

repairing or replacing the non-conforming goods and/or defective work, and in accordance with the

foregoing, Digital Alert Systems shall not be liable for any other damages, either direct or consequential.

RETURN POLICY TO FACTORY

Materials returned to Digital Alert Systems must have a Return Material Authorization number. To obtain a

RMA number, contact our A/V Switching & Control Customer Service at 585-765-2254 or fax 585-765-

9330. Customers have 30 days to determine that the product ordered fills their need and performs as

described in the applicable literature. Units returned for approved repair or credit, must be in the original

packaging including all parts and paperwork plus be in very good physical condition. If not, the customer

is billed the cost to refurbish the unit and for missing accessories and merchandise. No products may be

returned for change or credit after 12 months of the shipment date. Digital Alert Systems reserves the

right to repair or replace units under warranty.

Model 3185E

DUAL TONE DECODER

INSTRUCTION MANUAL

Digital Alert Systems

100 Housel Ave |Lyndonville |NY |14098 phone 585-765-2254 |fax

585-765-9330 digitalalertsystems.com

Specifications subject to change without notice

P/N 1340163

Version 1.20 03252019

TABLE OF CONTENTS

DESCRIPTION

SPECIFICATIONS

INSTALLATION

Mounting

Pin Numbers and Functions

Figure 1 –Edge Connector, Switch and Indicator Locations

Figure 2 –Block Diagram

Audio Input Connection

‘Set’Input Connection

‘Reset’Input Connection

Relay Output Connection

Power Supply Input

CUSTOMER OPTIONS

FIGURE 3 –Jumper Locations

Input Impedance

Input Balanced/Unbalanced

5 Minute Restoral

Momentary Output for ON and OFF

Output Relay

10 Second Pulse

Number of Digits to Decode

Fourth Digit ON/OFF

CODE SELECTION

OPERATION

Operating With a 4-Digit Code

Operating With a 3-Digit Code

Operating With a 2-Digit Code

Operating With a 1-Digit Code

ADJUSTMENT

WARRANTY AND RETURNS

DESCRIPTION

The Model 3185E Dual Tone Decoder is capable of accepting a sequence of up to four dual

tone signal inputs such as those from a Touch-Tone® telephone keypad. It provides a relay closure as

its output. Standard features include:

•Dual Form C Relay Output

•Selectable Input Impedance

•Selectable Balanced/Unbalanced Input

•Adjustable Input Signal Range

•Restoral of Output Status if Power Interruption is Less Than 5 Minutes.

•Selectable Momentary Output for ON and OFF sequences

•Digit Sequence Selectable up to Four Digits

•Selectable Relay Output Action (latching, momentary, or alternate).

•Level Sensitive 'Reset' Input

•Level Sensitive 'Set' Input

SPECIFICATIONS

Input Coupling ------------------------------------------------AC

Input Impedance:

Factory Setting -------------------------------------10 kΩMinimum

Selectable -------------------------------------------600ΩTerminated

Input: Factory Setting -------------------------------------Unbalanced

Selectable ------------------------------------------Balanced Common Mode

Range ------------------------------------------- -------± 5 Volts

Input Signal Range:

Minimum ---------------------------------------------50 mV p-p

Maximum --------------------------------------------1.5 V p-p

Input Range:

Nominal ----------------------------------------------14 dBm to -4 dBm

(155mV to 489 mV)

Optional ----------------------------------------------±10 dBm Adjustable Digit

Validation Time ----------------------------------------------40 ms Minimum

Inter-Digit Time:

Minimum ---------------------------------------------40 ms

Maximum --------------------------------------------3 Seconds

Maximum Digits Per Second:

No Twist ---------------------------------------------13

±6 dB -------------------------------------------------12

Relay Output --------------------------------------------------DPDT 30 VDC @ 2 Amp.

‘Reset’ Line ----------------------------------------------------Level Sensitive

Minimum 20 ms Pulse to

Ground.

‘Set’ Line -------------------------------------------------------Level Sensitive

Minimum 20 ms Pulse to

Ground.

Edge Connector ---------------------------------------------- Model 3000RK

(Cinch Jones 50-20A-30)

Power Requirements ---------------------------------------12 Volts D.C. ±10%

40 mA Maximum.

Physical Dimensions ----------------------------------------5.0 in.H x 3.0 in.W x 0.6 in.D

INSTALLATION

Mounting:

The Model 3185E is designed to plug into a Model 3000RK 20-pin edge connector. All connections are

intended to be made at the edge connector and will be referred to in this manual by edge connector

number or letter.

Pin Numbers and Functions:

Pin numbers are listed below for the Model 3185E when plugged into a 3000RK Connector. Consult

FIGURE 1 on page 4 for proper registration of pin numbers.

PIN NUMBER FUNCTION

1 Common terminal for relay output referenced to pins 9 and 10.

2 Circuit common (ground).

3 Circuit common (ground).

5 Audio input low (audio input circuit common if unbalanced).

6 Audio input high.

8 +12 Volt D.C. power supply input.

9 Normally closed contact for relay output referenced to pins 1 and 10.

10 Normally open contact for relay output referenced to pins 1 and 9.

A Common terminal for relay output referenced to pins K and L.

B Reserved. Connections to this pin will disable card.

D ‘Set’ input.

E ‘Reset’ input.

K Normally closed contact for relay output referenced to pins A and L.

L Normally open contact for relay output referenced to pins A and K.

FIGURE 1 Edge Connector, Switch and Indicator Locations

and Modifications for 4 digit ON/OFF Operation

FIGURE 2 Block Diagram

Audio Input Connection:

The audio input is connected at pins '6' and '5' (circuit common). The 3185E is factory set at 10 k input

impedance; unbalanced. This audio input may be changed by the customer to have a 600 termination

instead of 10 kΩ, and also to be balanced instead of unbalanced. Consult the CUSTOMER OPTION

section for more explanation.

‘Set’ Input Connection:

The ‘Set’ input is connected at pin 'D', and when pulsed to circuit common will energize the output relay.

The output relay will remain energized until the proper 'OFF' code is received or the ‘Reset’ input is

pulsed to ground. This input is level sensitive and requires a minimum pulse width of 20 msec. to circuit

common to activate or de-activate the output relay. The ‘Set’ input has precedence over all functions

except ‘Reset’.

If the 3185E's ‘Set’ input is pulsed to circuit common while decoding a code sequence it will clear

previous valid digit(s) decoded after the ‘Set’ input returns to a ‘high’ state.

‘Reset’ Input Connection:

Momentarily connecting pin 'E' to circuit common will cause the 3185E to reset. This input is level

sensitive and requires a minimum pulse of 20 msec. to circuit common to reset the card. The ‘Reset’

input dominates over all other functions.

NOTE: The 3185E will ignore all commands or code sequences until the ‘Reset’ input is removed from

circuit common.

Relay Output Connections:

The 3185E provides a dual Form C relay output. The output relay will energize whenever the

preprogrammed 'ON' code sequence is received or the ‘Set’ input is momentarily connected to circuit

common. If the output relay is set to ‘momentary’, the output relay will activate approximately 40ms after

the last valid digit is received and stay on as long as the last valid digit is present. If the output relay is

set to ‘latching’, the output relay will remain energized until the programmed ‘OFF’ code sequence is

received or the ‘Reset’ input is momentarily connected to circuit common.

The dual Form C relay output connections are shown below:

RELAY OUTPUT

COMMON

CONTACT

NORMALLY

CLOSED

CONTACT

NORMALLY

OPEN

CONTACT

1 FORM C

TABLE 1

Power Supply Input:

The power supply input is connected to pins '8' (+12 VDC) and '3' (circuit common). The 3185E requires

a power supply capable of providing 50mA minimum, and regulation of the +12 volt, ±10 %.

CUSTOMER OPTIONS

The Model 3185E is factory set to the following:

Input Impedance: 10 kΩ

Input: Unbalanced

5 Minute Restoral: Enabled

Momentary Output for ON and OFF: Disabled

Output Relay: Latching

4 Digit Decode Sequence

* for Fourth Digit 'ON'

# for Fourth Digit 'OFF

Jumpers are used to modify these options.

See FIGURE 3 on the next page.

NUMBER OF DIGITS

RELAY OUTPUT MODE

LATCHING

MOMENTARY

ALTERNATE

MOMENTARY OUTPUT

FOR BOTH ON & OFF

X= JUMPER INSTALLED O=

JUMPER REMOVED

R12 = INPUT SIGNAL LEVEL RANGE ADJUSTMENT

JUMPER

OPEN

SHORTED

INPUT IMPEDANCE

10kΩ◼

600Ω

INPUT

TERMINATION

BALANCED

UNBALANCED◼

5 MINUTE

RESTORAL

ENABLED◼

DISABLED

MOMENTARY

OUTPUT FOR BOTH

ON & OFF

J3, J4

DISABLED◼

ENABLED

◼= FACTORY SETTING

FIGURE 3 Jumper Locations

Input Impedance:

Input impedance may be either 10 kΩor 600 Ω. The J2 jumper determines the input impedance of the

3185E. Install a jumper at position J2 to terminate the audio input in 600 Ω. Consult FIGURE 3 for the J2

jumper location.

Input Balanced/Unbalanced:

The input may be selected to be balanced or unbalanced. The J1 jumper determines whether the input

is balanced or unbalanced. Removing the short from J1 will make the input balanced. Consult FIGURE 3

for the J1 jumper location.

5 Minute Restoral:

The 3185E may be selected to restore the output status for a power interruption of less than five

minutes. The 3185E is factory set to enable this restoral. The J7 jumper is open. To disable the five

minute restoral install a jumper on J7. Consult FIGURE 3 for J7 location.

Momentary Output for ON & OFF:

This setting provides a momentary output relay activation for both the ON sequence and the OFF

sequence. Momentary duration is 1 second. To enable this feature, install both J3 and J4.

Output Relay:

The output relay on the 3185E may be set in three different modes of operation; latching, momentary or

alternate action (toggling). The 3185E is factory set to latching.

Being set at latching means the output relay will energize when the pre-programmed 'ON' code is

received or the ‘Set’ input is momentarily connected to circuit common. The output relay will remain

energized until the preprogrammed 'OFF' code is received or the ‘Reset’ input is momentarily connected

to circuit common.

When the output relay is programmed to operate in the momentary mode, it will energize for the duration

that the last valid digit is present. In the momentary mode the 3185E will not respond to its pre-

programmed 'OFF' code.

Alternate action programs the relay for latching (toggling) relay output. In this mode the output relay

energizes and de-energizes with the same pre-programmed 'ON' code sequence.

10 Second Pulse:

If both ‘Set’ and ‘Reset’ are low and the relay mode is ‘momentary’, then when a valid ‘ON’ sequence of

digits is received, the relay is turned on for 10 seconds then ‘OFF’ – even if the last tone is still present.

The decoder will ignore all tones and ‘Set’ and ‘Reset’ activities during the 10-second period. Applies

only to firmware version 80154-1.10 and later.

The programming of jumpers for the output relay is shown below. Consult FIGURE 3 page 7 for the 'J3'

jumper and the 'J4' jumper location.

RELAY OUTPUT

MODE

JUMPER

LATCHING

MOMENTARY

ALTERNATE

MOMENTARY

OUTPUT FOR BOTH

ON & OFF

TABLE 2

X = JUMPER INSTALLED

O = JUMPER REMOVED

Number of Digits to Decode:

The 3185E is factory set to decode a 4-digit 'ON' code sequence and a 4-digit 'OFF' code sequence.

The first three digits of the code sequence are the same for both 'ON' and 'OFF'. The fourth digit for the

'ON' code sequence is factory set to '*', and the fourth digit for the 'OFF' code sequence is factory set to

'#'. The number of digits to decode is determined by jumpers 'J6' and 'J5'. Consult FIGURE 3 page 7 for

the location of 'J6' and 'J5'.

The programming of jumpers for the number of digits to decode is shown below:

NUMBER OF

DIGITS

JUMPER

TABLE 3

X = JUMPER INSTALLED

O = JUMPER REMOVED

Fourth Digit ON/OFF:

The fourth digit of the 'ON' code sequence and the fourth digit of the 'OFF' code sequence are factory

set at '*' and '#' respectively. To enable user selection of the fourth digits, it is necessary to remove

resistor ‘R8” and install two additional selection switches, S4 and S5, plus IC A3. When ordering the

switches, please use Digital Alert Systems part number ‘9200002’ for each of the two switches and part

number ‘9120375’ for the IC required.

Consult the PC board layout in Figure 1, on Page 4, for the location of the parts to be removed and

inserted.

CODE SELECTION

The hexadecimal rotary switches on the front edge of the 3185E determine each digit in the code

sequence. 0 through D select the corresponding DTMF digit to be decoded. The letter 'E' on the rotary

switch represents the '*' DTMF digit and the letter 'F' on the rotary switch represents the '#' DTMF digit.

As stated before, the 3185E is factory set to decode a 4-digit 'ON' code sequence and a 4-digit 'OFF'

code sequence. The first three digits of the code sequence are the same for 'ON' and 'OFF' commands.

The fourth digit for the 'ON' code sequence is factory set to '*', and the fourth digit for the 'OFF' code

sequence is factory set to '#'.

It is not necessary to power down the 3185E when you are programming the code sequence. The 3185E

program will read the switch settings each time a code sequence is received.

Consult FIGURE 1 on page 4 for location of switches and their designations.

OPERATION

When the 3185E is connected to a DC power source, the Power/Valid Digit LED CR14 on the front edge

of the PC board will be illuminated. This LED indicator will continue to illuminate until a valid DTMF digit

is detected or DC power is removed from the board.

The Valid Sequence LED CR15 will illuminate upon the decoding of a correct DTMF code tone pair in

the proper sequence. Upon the fourth correct digit, the output relay activates and the Relay Output LED

CR13 illuminates.

During the reception of valid DTMF tone pairs in a sequence the 3185E will —after decoding a valid

code number —wait for the next valid code in the sequence. If the time between digits is more than 3

seconds, the 3185E will reset and require that the sequence be sent completely again.

Operating With a 4-Digit Code:

When a 4-digit code sequence is selected on the 3185E the switch program will be as follows:

SWITCH 1 = first digit of the code sequence for both 'ON' and 'OFF'.

SWITCH 2 = second digit of the code sequence for both 'ON' and 'OFF'.

SWITCH 3 = third digit of the code sequence for both 'ON' and 'OFF'.

SWITCH 4 = fourth digit of the code sequence for 'ON' (preset to '*' if switch not installed).

SWITCH 5 = fourth digit of the code sequence for 'OFF' (preset to '#' if switch not installed).

If the 3185E is programmed for momentary relay output or alternating relay action SWITCH 5 is not used

for programming.

Operating With a 3-Digit Code:

When a 3-digit code sequence is selected on the 3185E the switch program will be as follows:

SWITCH 1 = first digit of code sequence for both 'ON' and 'OFF'.

SWITCH 2 = second digit of code sequence for both 'ON' and 'OFF'.

SWITCH 3 = third digit of code sequence for 'ON'.

SWITCH 4 = third digit of code sequence for 'OFF' (preset to '*' if switch not installed).

If the 3185E is programmed for momentary relay output or alternating relay action SWITCH 4 is not used

for programming.

Operating With a 2-Digit Code:

When a 2-digit code sequence is selected on the 3185E the switch program will be as follows:

SWITCH 1 = first digit of code sequence for both 'ON' and 'OFF'.

SWITCH 2= second digit of code sequence for 'ON'.

SWITCH 3 = second digit for code sequence for 'OFF'.

If the 3185E is programmed for momentary relay output or alternating relay action SWITCH 3 is not used

for programming.

Operating With a 1-Digit Code:

When a 1-digit code sequence is programmed into the 3185E the switch program is as follows:

SWITCH 1 = first digit of code sequence for 'ON'.

SWITCH 2 = first digit of code sequence for 'OFF'.

If the 3185E is programmed for momentary relay output or alternating relay action SWITCH 2 is not used

for programming.

ADJUSTMENT

Potentiometer R12 permits the user to adjust the level of the received DTMF tones. This adjustment

would be made when the received audio levels are too low or too high to permit reliable decoding.

Setting R12 fully counterclockwise will provide -10 dBmV of gain. Setting R12 fully clockwise will provide

+10 dBmV of gain.

Consult FIGURE 3 on page 7 for the location of potentiometer R12.