Obsolete
Product - No Longer Supported
INTRODUCTION
The information that follows is for the CES Model 510SA "Smart
Patch" sold from 1987 to about 1992 by CES. This information is provided to assist
previous purchasers of this product, and those individuals that purchase the 510SA
second-hand.
If you purchased, or are considering purchasing the
510SA second-hand you should be aware that some parts and components used in this product
are no longer available. Specifically, the microprocessor (CES Part Number MK38P70, or
U3870) is no longer available either from CES, or from anyone else (as far as we know).
If the 510SA you purchased or are trying to install has been hit by a
lightning or voltage surge, there is a good chance that the microprocessor has been
damaged. As anyone who services electronic products regularly knows, it is not unusual for
integrated circuits used in decade+ old designs to become obsolete. If you decide that you
wish to purchase a new telephone interconnect, please consider the CES Model 4700VP, which
lists for under USD$300.00 (is available through distribution for even less) and has a
complement of standard features never before offered on a telephone interconnect in this
price range.
You may find that the best way to obtain technical support for older
products is via e-mail, we will make every effort to answer your questions the same day
excluding weekends and holidays, of course.
510SA - "Smart Patch"
The CES MODEL 510SA SMART PATCH is a microprocessor controlled telephone
interconnect. It is intended to provide any DTMF equipped mobile radio with the ability to
make or receive telephone calls using ordinary simplex FM base station equipment. Complete
and immediate Controls extended to the mobile through the use of our uniquely enhanced
sampling process.
STANDARD FEATURES
Single * and # or multi-digit control codes - user programmable.
Sophisticated TOLL RESTRICT for positive long distance lock-out, with
secret code to disable for one toll call.
TIME-OUT and COR ACTIVITY timers with unique warning beeps and digital
programming.
TIME-OUT timer can be disabled or reset with the *.
User Selectable Tone or Rotary Dialing Phone line in use detector
prevents interrupting a Call in progress, and sends a CW message.
Secret code allows full access for emergency calls.
Reverse autopatch logic enables a unique CW message either one time or
every 10 seconds, (user selectable) when an incoming call is received.
SMART PATCH however will not transmit on top of someone, it will waitfor
carrier to drop. Digital programming of sample rate and sample time, along with the noise
gate sensitivity control, allow for easy interfacing with most transceivers. Connections
to the transceiver are simple and direct.
CW identifier: The original 510SA included a mail-in card to receive a
complementary CWID chip (U22) factory programmed with the station identifier string. This
part is no longer available from CES. If you are in possession of a blank TBP24SA10N (or
equivalent) chip, CES does offer programming of the chip at our factory for a nominal fee.
Call (407-679- 9440) or e-mail (sales@cesusa.com) CES for more details.
CHOOSING A BASE STATION
The 510-SA Smart Patch will work with any FM transceiver. However, the
duration of the required sample window is determined by the tine it takes for the
transceiver to switch from transmit to receive and then back tin transmit. When choosing
the base station it is important to understand that a fast switching transceiver will
produce shorter interruptions (sample windows) in the transmitted audio and therefore
"sound better" to the mobile operator. Some microprocessor controlled
transceivers switch very slowly and require excessive window settings to function
properly. Typical window times are less than 85 milliseconds.
OPERATION
Normally the base station is held in the receive mode. When the connect
code is received from the mobile the base station will transmit the CWID (if enabled) and
then connect the phone line) and begin to transmit phone line audio back to the mobile.
The carrier will be interrupted about once? every Second as the base is switched back to
receive to determine if the the mobile is transmitting. If the mobile is transmitting
during Sample window, the base will lock into receive and mobile audio will be coupled to
the phone line. The mobile operator should remember that after keying, he must pause long
enough for the next sample window before dialing or speaking. When the mobile stops
transmitting, the base will resume transmitting and sampling. When a conversation is over,
the disconnect code is used to disconnect the patch from the phone line.
When the 5l0-SA receives and in-bound call from the telephone line it will
transmit the CWID (if enabled) and pause for the mobile to transmit the connect code. The
mobile operator then transmits the Connect Code instructing the 510-SA that he wishes to
accept the call. The510-SA then connects the telephone line and the conversation
Commences. To terminate the conversation the mobile operator transmits the Disconnect Code
and the interconnect disconnects the telephone line and reverts the transceiver back to a
receive condition.
There are five connections that must be made between the 510SA and the
transceiver. Most connections (except for discriminator audio see note below) can usually
be made through the transceiver accessory jack, otherwise connections will have to be made
directly to the transceivers circuitry. When installing wires inside the radio, keep all
wires as short as possible. Do not route wires near coils or the transmitter power
amplifier. The required connections are as follows:
RED-----------+ 12 VDC
VIOLET--------GROUND
YELLOW-------PUSH-TO-TALK
BLUE----------DISCRIMINATOR AUDIO (SEE NOTE)
GRAY----------MICROPHONE AUDIO
(Wire colors not listed are not used)
*DISCRIMINATOR AUDIO: Connect the BLUE wire to the receiver discriminator
output. THIS MUST BE CONNECTED DIRECTLY TO THE DISCRIMINATOR OUTPUT BEFORE ANY FILTERING.
SMART PATCH CANNOT DETERMINE THE PRESENCE OF MOBILE CARRIER IF THIS CONNECTION IS NOT MADE
PROPERLY. The SMART PATCH audio section provides the necessary de-emphasis.
POWER: Connect the VIOLET wire to a good ground and the RED wire to
switched and filtered +12VDC.
PUSH-TO-TALK: Connect the YELLOW wire to the PTT line located at the
microphone connector. Transceivers with the PTT voltage lower than the supply will cause
the PTT LED on the patch to glow slightly.
MICROPHONE AUDIO: Connect the GRAY wire to microphone audio located at the
microphone connector.
Note: A ground lug is provided on the rear of the cabinet . This lug MUST
be grounded to a good earth ground with 12 gauge or larger wire. Without this earth ground
the internal lightning suppressor provides NO lightning protection. There may also be RF
pickup from AM and FM radio stations if the ground is not used.
Refer to the assembly drawing to locate the following adjustments
NOISE: Adjust R13 NOISE LEVEL CONTROL) to cause the front panel noise
indicator to just come ON" , then turn the control 1/8 turn farther. The next step is
important for proper operation of the interconnect. Using another radio to transmit,
verify that the noise indicator is "ON when the second radio is not transmitting, and
"OFF when it is transmitting. THE NOISE INDICATOR SHOULD NOT BE ON WHEN A MOBILE IS
TRANSMITTING, EVEN IF MODULATION IS PRESENT. Using a dummy load, transmit a variety of
audio levels and DTr1F tones from the mobile. The noise level adjustment is correctly set
when the noise LED illuminates only when the mobile is not transmitting.
RECEIVE AUDIO: Make a call and have the person on the other end listen to
the audio level. Adjust R62 (RECEIVE LEVEL) for normal audio level into the telephone
line. This level affects the DTMF decoder Verify that the DTMF Strobe LED, near the rear
of the patch, illuminates whenever DTMF digits are sent.
TRANSMIT AUDIO: Adjust R50 (TRANSMIT LEVEL) for adequate transmitter
deviation. To allow the patch to drive a low impedance mic input, change C26 and C101 to
2.2 uF. Change R6 to 560 ohms if sufficient audio cannot be obtained.
BEEP LEVEL: Adjust R51 (BEEP LEVEL) to the desired level as compared to
the transmit audio level.
PL LEVEL: R26 (CTCSS LEVEL) is not normally used. This adjustment is
provided for future expansion or specialized applications of the 510-SA.
PROGRAMMING
Referring to the assembly drawing, become familiar with the location of
the programming switches and jumpers. All programming charts are shown as viewed from the
front of the patch.
DO NOT CHANGE ANY SWITCH SETTINGS UNTIL THE PATCH HAS BEEN TRIED!
The 510SA interconnect has been factory programmed as shown below. Try all
functions before changing any switches.
CWID----------------------------OFF
*RESET--------------------------ON
TOLL RESTRICT------------------1 AND O RESTRICTED in the 1 ST AND 2ND DIGITS
TONE/PULSE---------------------OFF
TOLL DEFEAT CODE DISABLE---ON
SECRET CODE-------------------*14
ACTIVITY TIMER-----------------30
SEC PATCH TIMER---------------3 MIN
SAMPLE WINDOW---------------80 MS
SAMPLE RATE--------------------1 SEC
CONNECT CODE-----------------*73
Note Changing the programming switches while in the connect mode has no effect on the
operation of the 51O-SA until the next call.
PROGRAMMING THE
CONNECT/DISCONNECT CODE
The Connect Code is a "*" followed by two digits. The Disconnect
Code is "#" followed by the same two digits. The "*" and "#"
cannot be used as either of the two digits. Locate the Connect/Disconnect programming
switches. Four are labeled "1ST DIGITAL and four are labeled"2ND DIGIT".
Using the chart below, set the switches for your desired code. If all switches are
"OFF" the codes will be the single digits "*" and "#". (The
code "DD cannot be programmed.)
SEE PATCH CODE SWITCH SETTING CHART AT END OF MANUAL
PROGRAMMING THE SAMPLE WINDOW:
When the 510-SA is in the connect mode, and is transmitting telephone
audio the Interconnect periodically switches the transceiver to receiver in order to look
for a mobile carrier. This momentary period is caged the "sample window". These
sample windows occur at regular intervals (determined by the sample rate), and because
they interrupt the telephone transmission, sound like "breaks" in received audio
to the mobile operator. The key objectives in programming the sample window are to
minimize the length of the window in order to reduce the "breaks", and to keep
the window of sufficient duration to allow the transceiver to switch from transmit to
receive. Longer windows make it easier for mobiles to capture the interconnect, but are
more likely to make objectionably long breaks. Shorter windows sound more desirable to the
mobile operator but may not allow sufficient time for the transceiver to switch (from
receive to transmit) and then lock on to the mobile carrier.
Setting the Sample Window is a subjective matter which trades-off the
length of the interruptions to the mobile operator, against the switching speed of the
transceiver. Setting the sample window is best accomplished by setting the dip switches to
80 milliseconds (see the Sample Window Programming chart at end of manual) then testing if
the mobile is able to capture the interconnect. If the mobile can not capture the
interconnect then the sample window needs to be lengthened. If the mobile can capture the
interconnect then you may wish to experiment with shorter settings to reduce the breaks in
received audio to the mobile operator.
SEE SAMPLE WINDOW SWITCH SETTING CHART AT END OF MANUAL NOTE:
Changing programming switches while in the connect mode has no effect
until the next call. You MUST disconnect or power down before changing the switch
settings.
PROGRAMMING THE SAMPLE RATE
The sample rate can be programmed for .4 to 2 seconds between samples If
your transceiver is very fast switching (less than 50 milliseconds) as determined by the
sample window setting, you may want to use one of the fast rates. However to minimize
loss, a slower rate is desirable with slower switching radios. The sample rate is a matter
of personal preference. One second is recommended to start. Use the chart on page 10 to
aid in setting the switches. Do not set all switches on, as this disables the sampling.
SMART PATCH monitors telephone line audio. When audio is present, the time
between samples will be 4 times the programmed time. As soon as the person on the
telephone stops talking, the sample interval returns to the programmed time. This is
desirable with slow switching radios to further minimize loss on an initial connect, dial
tone will be transmitted with the fast sample interval since SMART PATCH knows that you
have not yet dialed a telephone number. After dialing, SMART PATCH will start responding
to telephone audio, and lengthen the sample interval if a busy signal is reached, or you
wish to interrupt the telephone party you will have to transmit the time of the long
sample interval to capture. This feature may not be desired with fast switching
transceivers. This function can be enabled or disabled by adjusting the VOX SENSITIVITY
control (R59).
SEE SAMPLE RATE PROGRAMMING CHART AT END OF MANUAL
PROGRAMMING THE CALL LIMIT TIMER
The Call Limit Timer will "time-out" the interconnect and
automatically terminate each call if the call exceeds the programmed limit. Refer to the
programming chart to set the Dip switches to the desired call limit time. The timer can be
disabled by setting all four switches to the ON position. The timer can be reset by the
mobile operator with transmission of the star "*' if the "RESET *" switch
is 'ON". The "*RESET" feature will transmit beep messages if the connect
code is the single digit " Time-out warning beeps will be transmitted starting 30
seconds before time-out. Time-out of the 510-SA will be acknowledged with the Morse Code
transmission of "TO".
SEE PATCH TIMER PROGRAMMING CHART AT END OF MANUAL
PROGRAMMING THE MOBILE ACTIVITY TIMER
The Mobile Activity Timer "times-out' the 510-SA if mobile
transmissions are not received by the 510-SA within its programmed time interval. The
purpose of this timer is to time-out the interconnect if the mobile should drive out of
range, or go off the air thereby losing control of the interconnect. The Mobile Activity
Timer begins timing at the end of every mobile transmission and is reset with each mobile
transmission. Warning beeps will be transmitted ten seconds prior to time-out alerting the
mobile operator to key the mobile transmitter to re-set the timer. Actual time-out is
acknowledged with the transmission in Morse Code of "TO."
SEE ACTIVITY TIMER PROGRAMMING CHART AT END OF MANUAL
PROGRAMMING THE TOLL RESTRICTIONS
There are 10 switches labeled O through 9. Any combination of numbers can
be restricted from being the 1st dialed digit, the 2nd dialed digit, or both. In most
areas the 1 and O will be the only switches ON . There are two other switches associated
with the TOLL RESTRICT. These are RESTRICT 1st digit and RESTRICT 2nd digit. In most areas
it will only be necessary to turn on the RESTRICT 1st switch, however, some areas do not
dial a 1 as the first digit of a toll call. In those areas the RESTRICT 2nd switch should
be turned "ON" since all area codes have either a 1 or O for the second digit.
Also no area codes have a 1 or O for the first digit so the RESTRICT let switch should be
"ON" to prevent the operator from being dialed. Attempted dialing of toll
restricted digits will cause the 510-SA to automatically disconnect, then transmit a
series of beeps.
REMOTE TOLL RESTRICT DEFEAT
The 510-SA Smart Patch has a secret code to allow select mobile operators
to defeat the programmed toll restrictions. The secret code is determined by the setting
of the sample rate and sample window switches. DO NOT CHANGE THE SETTING OF THE SWITCHES
JUST READ THEM. The first digit of the secret code is determined by the setting of the
sample window switches. The second digit is determined by the sample rate Switches. Use
the chart below to determine the secret code. Note that only three of the four switches
are read. To enable this feature, set the switch labeled "8" of the activity
timer switches to the "ON" position. With the front panel toll restrict switch
"ON" a toll call can be made by sending "*" followed by the secret
code, then '*" followed by the connect code. The toll restrict is automatically
rearmed on disconnect. Calls made with the Remote Toll Restrict Defeat feature are not
subject to the Telephone in Use Detector and will connect the mobile operator to the
telephone line even if it is already in use. This feature does not function if the connect
code is the single digit "*".
SEE SECRET CODE PROGRAMMING CHART AT END OF MANUAL
TONE OR ROTARY DIALING If you have rotary dialing in your area, switch
"ON" the TONE/PULSE switch. You can use pulse dialing even if your telephone
line is a tone line if this gives you more reliable dialing.
CWID ENABLE
If your station call sign is programmed into the CWID PROM (U22), switch
"ON" the ID ENABLE switch. If you are installing the ID PROM, refer to the
assembly drawing for proper installation. Setting the ID Enable switch to the
"ON" position without a CWID Prom in the prom socket will cause a long delay
prior to connect. (Please note that installation of a programmed CWID prom requires that
the prom be inserted with its "notch" orientation opposite to that of other IC's
on the printed circuit board.
REVERSE AUTOPATCH
Interconnection of a call initiated from the telephone line is reverse
autopatch. Upon receipt of an in-bound telephone call the 510-SA keys the transmitter,
broadcasts a series of E's in Morse code (or the CWID if enabled) every ten seconds, and
waits for a mobile operator to enable interconnection by transmitting the connect code.
When the mobile operator transmits the connect code the 510-SA makes the interconnection.
NOTE: The 510SA Telephone Interconnect is designed to work reliably with
the public switched telephone networks and requires that line levels and voltages be like
those of the public networks. The 510SA, like other telephone interconnects may not
function properly with in house PBX systems since these systems may use proprietary
voltages or levels. To disable the Reverse Autopatch feature locate and remove resistor
"R-27". To lint the Morse Code ring-out alert to only one transmission locate
and cut jumper "B".
TELEPHONE IN USE DETECTOR
The 510-SA SMARTPATCH will not connect if the telephone line is in use,
and will send the Morse Code message "EEEEEEEE" to the mobile operator. To
defeat this locate and cut jumper "A". If the FCC registered coupler is used,
the telephone in use detector will not function, and jumper "A" must be cut.
AUXILIARY DISCONNECT
A jack has been provided on the rear of the cabinet for use with a
secondary control link. With a plug inserted in this jack, power to the 510-SA will be
interrupted. This plug should be wired to normally closed relay contacts.
Specifications and descriptions are subject to change without notice.
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