DTP Series manual - cpicomm.com

1 1 CPI Communications, Inc. 941 Hensley Lane Wylie, TX 75098-4909 Phone (972) 429-7160 WATS (800) 869-9128 FAX (888) 437-5360 or (972) 429-7165 DTP SeriesDC TerminationPanelsRev. B 9/00 DTP Series Manual2 General InformationThe CPI Communications DTP Series DC remote adapters provide a reliable means of remotely controllinga two-way radio base station or repeater over in-house or leased metallic pair DTP Series can be used with CPI DC remotes as well as most other manufacturers DC remote DTP remote adapters are available in the following variations, all of which provide adjustable RX andTX amplification and dip switch selection of control current format.

2 MODELDESCRIPTIONDTP1 Board only product, provides only product, provides PTT and monitor only product, provides PTT, monitor, F1/F2 the leased or in-house metallic twisted-pair 600 ohm line, to the DTP board via J2. (the RJ-11 jack)Connect an external 12 to 16 volt semi-regulated DC power supply to J1 with the positive lead to J1-2 andthe negative lead to the radio receiver audio output to J1-6. Radio receiver audio output should be a source that is afterthe squelch circuit and not affected by the radio's volume control adjustment. If a squelched audio source is notavailable there is a squelch circuit provided on the DTP Series termination panels.

3 J1-5 is the input to the DTP'ssquelch circuit. It can be configured active high or active low using jumpers JU14 and the radio microphone input to J1-1. If microphone input is high-impedance, shielded cable shouldbe used and R65 on the DTP board should be clipped. If a local microphone is used the mic high should beconnected to you have a DTP2, connect the monitor circuit of the radio to the DTP2 board using the form "C" relaycontacts at J1-8, J1-9, and the radio PTT circuit to the DTP at J1-4. For radios that key to a positive voltage instead of ground,the PTT circuit can be altered using JU1 and DTP3 provides a form "C" set of relay contacts at J1-12, J1-13, and J1-14 for two channel frequencyselection.

4 The relay output is factory set to be momentary. This can be changed to latching by using JU-16. TheDTP1 and DTP2 do not provide these AdjustmentsThe following level adjustments are normally required only at the time of RX Audio AdjustmentR57 controls the RX audio level to the phone line. With the phone line connected at J2, connect a RMSvoltmeter to the leads of R61 and R62. Unsquelch the receiver so that continuous noise is present and adjustpotentiometer R57 for 0 dBm or V rms on the TX MOD AdjustmentThis section assumes that each remote in the system has been set to provide an average voice audio levelof 0 dBm as measured at the DTP someone at the remote control console depress and hold the PTT switch.

5 With a voice coming fromthe remote, adjust R47 to provide proper transmitter SettingsThe following table lists dip switch setting for DTP switch 4 is normally in the OFF position. When in the ON position, The perceived polarity of the phonelines is output is adjustable from 2 mVRMS to 565 mVRMS with 0 dBm on the phone lines. The phonelines can be driven to 0 dBm with an RX input level from 88 mVRMS to 880 mVRMS. A 0 dBm level on thephone line back to the remote can be produced with a mic high input between 2 mVRMS and 565 ListDTP Series PCB #700-DTPX-200 Rev. BReferenceDescriptionCPI Part #CAPACITORSC1,18100uF Elec Rad208-2021-107C2,3,5,15, Mono Cer Dip208-0092-104C410uF Elec Rad208-4022-106C6,271uF Elec Rad208-4052-105C9, 100V Elec Rad208-2062-475C11,1220pF Cer208-0001-200C13,14,17,21, Mono Cer Dip208-0092-103C23180pF Mono Cer Mono Cer Dip208-0092-473C252200pF Mono Cer Dip208-0071-222C261uF Elec Rad Elec Rad208-4052-225DC Remote ProvidesSet SwitchesPTT (F1)PTT (F2)Mon (F1)Mon (F2)

6 123 DTP1, DTP2& DTP3+/- 15mAOFFOFFOFF+/- 6mAONOFFOFFDTP2 & DTP3+/- 15mA+/- 6mAOFFONOFF+ 15mA-6 mAONONOFF+/- 6mA+/- + 6mA- + 6mA+ 15mA- + 15mA- 15mA+ 6mA- 6mAONONONAABBCCDDEE44332211U5U6U7411714 MOD OUT+ VLOCAL MIC INPUTPTTSQUELCHRX INPUTGROUNDMON NOMON NCMON COMF2 NOF1 NCGROUNDF1/F2 COMLOCAL MIC INPUTLOCAL MIC INPUTMOD OUTPTTMON NOMON NCMON COMF2 NOF1 NCF1/F2 COMRX INPUT+ VGROUNDSQUELCHCWLOCAL MICAUDIO TOREMOTESINSTALL JU9 FOR HIGHLEVEL MIC AUDIOINSTALL JU14 TO MUTERECEIVE AUDIO WITHLOW SQUELCH INPUTINSTALL JU15 TO MUTERECEIVE AUDIO WITHHIGH SQUELCH INPUTPER OCTAVE DE-EMPHASISRX

7 INPUTINSTALL JU4 IF RECEIVEAUDIO FROM RADIOIS HIGH LEVELINSTALL JU12 FOR 6dBPER OCTAVE DE-EMPHASISREMOVE JU13 FOR 6dBBALANCEINSTALL JU19 & JU20 FOR TWO WIRE HALF DUPLEXJU7 INSTALLED FOR TWOWIRE OPERATIONINSTALL JU17 & JU18 FOR -4W AND -FD OPTIONSINSTALL JU5 ONLYFOR -4W OPTIONCWON FOUR WIRESPARTS INSTALLEDFOR -4W OPTIONINSTALL JU6 FORPARTS INSTALLED FOR -FD OPTIONMOD OUTFULL DUPLEX OPERATIONA DVM CONNECTEDACROSS R31 WILLDISPLAY LOOP CURRENT+-INSTALL JU8 FOR LOWLEVEL MOD OUTPOSITIVE POLARITY mA DETECT6 mA DETECT11 mA DETECTJU2 IN & JU1 OUTFOR PTT TO GND,REVERSE FOR PTTTO +VD16 IS ILLUMINATED WHENK1 IS ENERGIZEDD3 ILLUMINATED WHENK2 IS ENERGIZEDK3 IS ENERGIZEDD5 ILLUMINATED WHENLOCAL MIC MUTEINSTALL JU16 FOR LATCHED F1/F2 OUTPUTREMOVE JU16 FOR MOMENTARY (100 mS) OUTPUTRX MUTELOCAL MIC MUTEINSTALL JU11 FORPTT TO GROUNDINSTALL JU10 FORPTT TO +VCWCWJU3 INSTALLED TOMONITOR WHEN PTTBDTP Series DC TERMINATION PANELCPI COMMUNICATIONS, INC.

8 (972) 437-5320 (800) 869-9128D11 Tuesday, October 17, 2000 TitleSizeDocument NumberRevDate:SheetofB1A1B10A[ ]A2A0A1A4A3A2A4A3B[ ]B1B2B3B4B5B6B7B8B9B10B11B12B13B14B3B4B8 B9B12B13B14B2B6B5B3B7B11A0 VCC+5 VCCVCCVCCVBVBVBVBVBVB+5+5 VCCVB+5+5+5 VBVBVBVCCVCCVCCVCC+5+5+5+ + :6001436V1 ERZ-C05DK330R5668KR55470KU7D4066896K1 DPDT POT132R50100K+-U6 DLF347121314U7A40661213U7B4066111012+ + + + +RST+ POL11 mA6 mARB4RB5RB6RB7 RTCCGNDOSC2 OSC1 PTTMONF1/F2RA3T2600:6001436R5825K +-U6 CLF3471098R701KR5122KR5325K + VOLTR6247L3150uH+ , , ViewBottom View7 ReferenceDescriptionCPI Part #DIODESD11N4004 Rect212-0002-004D2,4,6,7,8,9,10,11,17,18 1N4148 Small Signal Switching212-0110-012D3,14 LED T1 Green214-0002-004D5,12 LED T1 Yellow214-0002-003D13,16 LED T1 Red214-0002-001D15 LED T1 Amber214-0002-002 TRANSISTORSQ1,2,3,4,5,6,7,8,9,10,11,12,1 32N2222 NPN240-2222-000 RESISTORSR1,2,3,4,15,17,19,21,48,43,701K 5% 1/4 Watt242-0001-102R5,35,38,6810K 5% 1/4 Watt242-0001-103R6390 Ohm 5% 1/4 Watt242-0001-391R7.

9 5122K 5% 1/4 Watt242-0001-223R8150 Ohm 5% 1/4 Watt242-0001-151R9,36,6647K 5% 1/4 Watt242-0001-473R1056 Ohm 5% 1/4 Watt242-0001-560R11,12, 5% 1/4 Watt242-0001-472R1439K 5% 1/4 Watt242-0001-393R16,18,20,2233K 5% 1/4 Watt242-0001-333R23-30,40,41,44,45,50,72 ,73,76100K 5% 1/4 Watt242-0001-104R31100 Ohm 5% 1/4 Watt242-0001-101R3227 Ohm 5% 1/4 Watt242-0001-270R33,34,52470 Ohm 5% 1/4 Meg 5% 1/4 Watt242-0001-275R39,5668K 5% 1/4 Watt242-0001-683R42120K 5% 1/4 Watt242-0001-124R49330K 5% 1/4 Watt242-0001-334R54,55,67470K 5% 1/4 Watt242-0001-474R61,6247 Ohm 5% 1/4 Watt242-0001-470R63, 5% 1/4 Watt242-0001-682R6418K 5% 1/4 Watt242-0001-183R65620 Ohm 5% 1/4 Watt242-0001-621R69150K 5% 1/4 Watt242-0001-154R7113K 5% 1/4 5% 1/4 Watt242-0001-822 POTENTIOMETERSR47,53,57,5825K Pot242-0101-253 INTEGRATED CIRCUITSU15 Volt Reg417-7805-001U2 Reset Generator425-7757-000U3 Quad Opto-Isolator420-2501-000U4 Microcontroller425-1654-000U5,6 Quad Op-Amp420-L347-000U7 Quad Analog Gate412-4066-0008 WarrantyCPI Communications, Inc.

10 Warrants each product manufactured by it to be free from defective material andworkmanship and agrees to remedy any such defects or to furnish a new part in exchange for any part of any unitof its manufacture which under normal installation use or service discloses such defects, provided the unit isdelivered by the customer to our authorized service center intact, with all transportation charges pre paid withintwo years from date of shipment to the original purchaser. Exceptions are semiconductors which carry only themanufacturer's standard warranty and lamp indicators and fuses which are warranted to be operational whenshipped from the factory.