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Model SDI-50 Manual, General Description

INSTALLATION

This section describes each connection required by the Model SDI-50

Interconnect. This section aiso describes optional jumpers on the

circuit board that can be used to customize the Model SDI-50 to your

particular transmitter-receiver combination.

Installation of the Model SDI-50 shouid be done by a qualified two-way

radio technician. Since the electrical components used are

susceptible to static damage, be sure to use static protection

techniques during the installation and level adjusting procedures.

During the installation, be sure that no power is applied to the

interconnect or radio.

Shielded cable shouid be used for all audio connections. To prevent

hum and noise due to ground loops, termínate the cable shield only at

the interconnect ground at the terminal block. The other end of the

shield must be left unconnected. Other connections to the Model SDI-

50 can be made using standard hook-up wire with sufficient current

rating. The best location for the interconnect is as close as

possible to the radio, thus allowing the shielded cables and wires to

be as short as possible.

4.1 TERMINAL BLOCK CONNECTIONS

Use the following instructions to make all connections to the terminal

block:

4.1.1 TBl-1,15,23 and 25 GROUND

These connection points are the main ground for the interconnect.

The GROUND connections, and chassis are common. Ground should be

connected directly to the "Common Ground Return" at the DC power

suppiy.

4.1.2 TB1-13 +VDC

This connection supplies DC power to the interconnect. This

connection shouid be made DIRECTLY to the +12 VDC power suppiy that

powers the radio equipment. If this is not available, any

reg12 VDC source with a current rating of at least 500 mA

may be used.

4.1.3 TB1-22 RELAY PTT OUTPUT

This connection is used for controlling the transmit function in

the associated transmitter. The PTT output shouid be connected to

the PTT line on the transmitter. As shipped from the factory, the

PTT output will próvido a relay contad pull to ground to key the

transmitter. If a pull to positive voltage is required to key the

Page # 7

Содержание SDI-50

Страница 1: ...MODEL SDI 50 TELEPHONE INTERCONNECT USER SERVICE MANUAL Communications Electronics Specialties Inc 931 218 S Semoran BIvd Winter Park FL 32792 USA 407 679 9440 800 327 9956 REV 1 92 01000719 20 00 U S...

Страница 2: ...ONTROL OUTPUTS 10 4 1 11 TB1 17 and 18 FUNCTION OUTPUTS 1 2 10 4 2 TELEPHONE LINE CONNECTIONS 11 4 3 OPTIONAL CTCSS DECODER 11 4 3 1 CTCSS FREOUENCY SELECTION TABLE 12 4 4 SDI 50 JUMPER SUMMARY TABLE...

Страница 3: ...5 35 32 6 5 21 Half Full D plex Enable 5 36 32 6 5 22 Repeat Enable 5 37 32 6 5 23 Mute on Pulse Dialing 5 40 33 6 5 24 Begin Outdial with Star 5 41 33 6 5 25 Begin Outdial with Pound 5 42 33 6 5 26 P...

Страница 4: ...C E S Model SDI 50 Manual 9 1 9 Noise Circuit 43 9 1 10 CTCSS Level Comparator 44 Page iii...

Страница 5: ...nsceiver Ground Keying Source 100 mA 03 Vdc Input from receiver 50 mVrms to 2 Vrms adjustable Output to transmitter O to 1 0 Vrms max adjustable Telephone Input from telco 30 db to 2 db 600 Ohm balanc...

Страница 6: ...C E S Model SDI 50 Manual This page left blank Page 2...

Страница 7: ...to the telephone network Intelligent prograinmable toll restriction suitable to your application Programmable call limit and mobile activity timers to help control system loading Time out warning sign...

Страница 8: ...e Model SDI 50 is enclosed in an attractive cabinet with Mobile Detect Transmit Connect and Power status LEDs mounted on the front panel Front panel Power and Connect Disconnect switches provide for l...

Страница 9: ...e line The caller shouid then enter the number of the desired mobile 1 to 5 DTMF digits terminated by a The interconnect will regenerate this number out to the mobiles as DTMF The mobile must answer w...

Страница 10: ...ill return three long tones and disconnect After communications are complete the call may be terminated with the global disconnect code from the mobile or the phone line Example To initiate a Dial up...

Страница 11: ...with sufficient current rating The best location for the interconnect is as close as possible to the radio thus allowing the shielded cables and wires to be as short as possible 4 1 TERMINAL BLOCK CO...

Страница 12: ...audio input which can be used for special applications when more then one audio source is needed or used There are no controls or level adjustments associated with this input 4 1 7 TBl 9 10 and 21 AU...

Страница 13: ...decoders may only provide a small voltage change when detecting the proper tone Resistor R45 enables the installer to set the reference of the voltage comparator to the midpoint between the high and...

Страница 14: ...1 6 CTRL 2 goes low true after receipt of Special Connect code followed by the connect code Returns high after receipt of next disconnect code Temporary Toll Defeat 5 20 must be on for CTRL 2 to work...

Страница 15: ...s will work without any problem Connect the five wires and set the 5732 for the proper CTCSS tone according to the Frequency Selection Table See the Jumper Summary Table in the next section to configu...

Страница 16: ...6 5 4Z 1 0 1 0 0 6 82 5 YZ 0 0 1 0 1 22 141 3 4A 1 0 1 0 1 7 85 4 YA 0 0 1 1 0 23 146 2 4B 1 0 1 1 0 8 88 5 YB 0 0 1 1 1 24 151 4 5Z 1 0 1 1 1 9 91 5 ZZ 0 1 0 0 0 25 156 7 5A 1 1 0 0 0 10 94 8 ZA 0 1...

Страница 17: ...the telephone line Cut If the receive audio pick up point is after de emphisis cut this juinper JMP3 Modified Pulse Dialing Intact Make Break ratio 40 60 at lOpps Cut Make to Break ratio 44 56 at 10 p...

Страница 18: ...provides 12Vdc to key the transmitter Pin C Relay PTT provides a ground to key the transmitter JMP8 Aux Relay Control The center pin B is common and connects to one of two pins A or C Pin A The auxil...

Страница 19: ...Start from a fully counter clockwise position and note that the Mobile Detect LED on the front panel is On Turn R91 clockwise until the LED turns Off Continue rotating the adjustments about 1 8 of a t...

Страница 20: ...to be in the Connect Mode on a quiet line To achieve this call into the interconnect and answer the call by pushing the Connect button Or call time and temperature and wait for the recording to stop S...

Страница 21: ...Generate a signal on the receive frequency modulated by an 800 hz tone at 4 0 kHz deviation Adjust R61 to 4 kHz deviation on the transmitter frequency 5 7 VOX SENSITIVITY R99 5 C For simplex mode onl...

Страница 22: ...values which are listed in the center column 6 1 ENTERING THE PROGRAM MODE The program mode may be entered in one of two ways Local Programming Mode With the supplied DTMF tone pad plugged into the f...

Страница 23: ...d mode are turned off The programming codes are grouped by their functions All codes start with the key and follow a similar format each of which is described in it s code group section The examples i...

Страница 24: ...5 36 O Set the Sample Rafe 1 0 1 O Set the Sample Rate Multiplier 5 23 24 5 23 5 24 Set the Sample Window 1 1 1 1 Turn off the Repeat Enable 5 37 5 37 O JMP4 shouid be cut or removed 6 2 2 HALF FULL D...

Страница 25: ...Limit Reset on 6 5 3 14 Simplex enable note 1 simplex off 6 5 4 15 Toll restrict on 1st digit note 2 on 6 5 5 16 Toll restrict on 2nd digit on 6 5 6 17 Pulse dialing off 6 5 7 20 Toll Restriction Ove...

Страница 26: ...sed to modify the sample rate Note 2 This is a two part switch The following switch number must also be set Refer to the section in the manual for more detail on setting these Note 3 Switches 23 and 2...

Страница 27: ...he sample window should be set as short as possible while still allowing the mobile to capture the interconnect on a weak signal The function is programmed in 2 ms steps by entering a three digit mult...

Страница 28: ...ne 018 tone 6 4 6 Mobile Activity Timer 1 5 This timer is used to disconnect the interconnect and unkey the transmitter if the mobile should drive out of rango or go off the air Each time the mobile t...

Страница 29: ...umber will result in the Error Message being transmitted and then immediate disconnect For toll restriction to be active software switch 5 33 should be turned on To program the toll restrictions you f...

Страница 30: ...ed by the switches 00 through 11 will be restricted as the first dialed digit by using Program Code 5 15 Use Code 5 16 for the second dialed digit Restrict Program From__________________Sequence First...

Страница 31: ...13 tone O tone disallow reset 6 5 4 Simplex Enable 5 14 This function enables the simplex use of the interconnect If simplex use is desired turn this function on and turn 5 36 off See section 6 2 1 fo...

Страница 32: ...are automatically rearmed If this switch is turned off the toll restrictions will apply to all calls See the Special Connect Code for details on it s use 5 tone 20 tone 1 tone allow toll defeat 5 tone...

Страница 33: ...e audio and decreasing the sample rate The sample rate will automatically be slowed down to provide less interruptions in the phone line audio When turned on switch 23 will multiply the sample rate by...

Страница 34: ...t ring on off 2nd ring off on 4th ring on on 8th ring Example To answer on 2nd ring enter a 1 for switch 5 25 and a O for switch 5 26 5 tone 25 tone 1 tone 5 tone 26 tone O tone 6 5 15 Interconnect En...

Страница 35: ...lled mobile may answer Ring Out may be turned off if only selective signalling is desired or if its desired that the interconnect be dedicated to mobile to landline calls For the interconnect to conti...

Страница 36: ...always active while selective signaling and Ring Out may be turned on or off If auto answer is off then the interconnect will signal the mobile and wait for the mobile to send the connect code before...

Страница 37: ...is monitored to determine when dialing is completed and un mute the Receive Audio 5 tone 40 tone 1 tone mute is enabled 5 tone 4O tone O tone no muting 6 5 24 Begin Outdial with Star 5 41 When select...

Страница 38: ...e no regeneration 6 6 CONTROL CODES 6 6 1 Remote Programming Code 6 When the Auto Answer function is on the interconnect can be remotely programmed from the telephone line by entering the Remote Progr...

Страница 39: ...switch 5 20 should be turned on If a toll call override isn t desired turn 5 20 off Phone Line In Use Detector This code will allow a mobile originated call to break into a call already in progress T...

Страница 40: ...epeat capability On and Off from a the telephone using DTMF tones 6 6 7 Dial up Remote Code 8 The Dial Up Remote feature is always active when auto answer is on There is a programmable Dial up Remote...

Страница 41: ...or during programming if an invalid program code is entered NOTE Never remove the Error Message This Message is essential to inform the operator of several functions and error conditions durring use a...

Страница 42: ...e SDI 50 between each two digit character number as they are entered Example To program OFF in the disconnect Message enter the following 9 tone 1 tone 63 tone 33 tone 33 tone 08 tone Remember when pr...

Страница 43: ...pendently of each other will usually work Two transceivers may be used by making the appropriate connections to each Before adjustments can be made all connections to the associated radios must be com...

Страница 44: ..._______ 11 Toll restrict on number 9 off ___________ 12 Selectivo Signaling on ___________ 13 Call Limit Reset on ___________ 14 Simplex enable note 1 simplex off ___________ 15 Toll restrict on 1st d...

Страница 45: ...o modify the sample rate Note 2 This is a two part switch The following switch number must also be set Refer to the section in the manual for more detall on setting these Note 3 Switches 23 and 24 hav...

Страница 46: ...d peripheral generates and decodes all 16 DTMF digits DTMF data is passed to and from U2 via the audio circuits and the Microprocessor Control System The Analog Switches control the path of encoding a...

Страница 47: ...ronic holding coil to sink off hook current Line transformer TI couples telephone and radio audio This single transformer provides 35dB of isolation as a fuli duplex hybrid Audio from the radio receiv...

Страница 48: ...a network that gives a peak DC reading of the amount of noise on the channel This signal is sent to a comparator half of U18 that provides a logic level signal to the microcomputer 9 1 10 CTCSS Level...

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