Instruction Manual DTP Series DC Termination Panels Rev. B /00 DTP Series manual.p CPI Communications, Inc. Hensley Lane Wylie, TX 00 Phone () 0 WATS (00) FAX () 0 or ()
General Information The CPI Communications DTP series DC remote adapters provide a reliable means of remotely controlling a twoway radio base station or repeater over inhouse or leased metallic pair wiring. The DTP series can be used with CPI DC remotes as well as most other manufacturers DC remote consoles. The DTP remote adapters are available in the following variations, all of which provide adjustable RX and TX amplification and dip switch selection of control current format: MODEL DTP DTP DTP DESCRIPTION Board only product, provides. Board only product, provides and monitor functions. Board only product, provides, monitor, F/F functions. Installation Connect the leased or inhouse metallic twistedpair 00 ohm line, to the DTP board via J. (the RJ jack) Connect an external to volt semiregulated DC power supply to J with the positive lead to J and the negative lead to J. Connect the radio receiver audio output to J. Radio receiver audio output should be a source that is after the squelch circuit and not affected by the radio's volume control adjustment. If a squelched audio source is not available there is a squelch circuit provided on the DTP series termination panels. J is the input to the DTP's squelch circuit. It can be configured active high or active low using jumpers JU and JU. Connect the radio microphone input to J. If microphone input is highimpedance, shielded cable should be used and R on the DTP board should be clipped. If a local microphone is used the mic high should be connected to J. If you have a DTP, connect the monitor circuit of the radio to the DTP board using the form "C" relay contacts at J, J, and J0. Connect the radio circuit to the DTP at J. For radios that key to a positive voltage instead of ground, the circuit can be altered using JU and JU. The DTP provides a form "C" set of relay contacts at J, J, and J for two channel frequency selection. The relay output is factory set to be momentary. This can be changed to latching by using JU. The DTP and DTP do not provide these contacts. Level Adjustments The following level adjustments are normally required only at the time of installation.. RX Audio Adjustment R controls the RX audio level to the phone line. With the phone line connected at J, connect a RMS voltmeter to the leads of R and R. Unsquelch the receiver so that continuous noise is present and adjust potentiometer R for 0 dbm or 0. V rms on the meter.. TX MOD Adjustment This section assumes that each remote in the system has been set to provide an average voice audio level of 0 dbm as measured at the DTP panel. Have someone at the remote control console depress and hold the switch. With a voice coming from the remote, adjust R to provide proper transmitter deviation.
Switch Settings The following table lists dip switch setting for DTP series. DC Remote Provides Set Switches (F) (F) Mon (F) Mon (F) DTP, DTP & DTP / ma OFF OFF OFF / ma ON OFF OFF DTP & DTP / ma / ma OFF ON OFF ma ma ON ON OFF / ma /.ma OFF OFF ON ma.ma ON OFF ON DTP ma ma.ma.ma OFF ON ON ma ma ma ma ON ON ON Dip switch is normally in the OFF position. When in the ON position, The perceived polarity of the phone lines is reversed. Modulation output is adjustable from mvrms to mvrms with 0 dbm on the phone lines. The phone lines can be driven to 0 dbm with an RX input level from mvrms to 0 mvrms. A 0 dbm level on the phone line back to the remote can be produced with a mic high input between mvrms and mvrms. Parts List DTP Series PCB #00DTPX00 Rev. B Reference Description CPI Part # CAPACITORS C, 00uF Elec Rad 000 C,,,,.uF Mono Cer Dip 0000 C 0uF Elec Rad 000 C, uf Elec Rad 000 C,0.uF 00V Elec Rad 00 C, 0pF Cer 000000 C,,,,.0uf Mono Cer Dip 0000 C 0pF Mono Cer Dip 000 C.0 Mono Cer Dip 000 C 00pF Mono Cer Dip 000 C uf Elec Rad NonPolar 000000 C.uF Elec Rad 00
A A B B C C D D E E C B[..] B B B MOD OUT LOCAL MIC INPUT JU IN & JU OUT FOR TO GND, REVERSE FOR TO V JU JU D N K DPDT RELAY R 00K C.0 R0 00K 0 R K UC LF R 0K INSTALL JU FOR TO GROUND D N JU R 00K JU0 UC 0 INSTALL JU0 FOR TO V D IN LOCAL MIC MUTE A0 A[0..] A R 0 R K POSITIVE POLARITY DETECT R D LEDYELLOW Q N C R K R K 0 R 00K R K UD PS0 R 0pF JU 0K UA LF D0 N INSTALL JU FOR LOW LEVEL MOD OUT MOD OUT A DVM CONNECTED ACROSS R WILL CW DISPLAY LOOP CURRENT D N R0 00K R 00 R K POT JU INSTALL JU FOR FULL DUPLEX OPERATION ON FOUR WIRES R 0 T 00:00 INSTALL JU ONLY FOR W OPTION JU JU V ERZC0DK0 V ERZC0DK0 C. 00 VOLT C. 00 VOLT PARTS INSTALLED FOR FD OPTION JU C0.0 C.0 L 0uH L 0uH INSTALL JU & JU FOR W AND FD OPTIONS R PARTS INSTALLED FOR W OPTION R0 J MODJACK D IS ILLUMINATED WHEN K IS ENERGIZED R K D LEDRED U TL RST V GND D LEDAMBER Q N A. ma DETECT K R K UA PS0 R 00K R R K 0K Q N Q N R K R K D N D N MOD OUT. V LOCAL MIC INPUT SQUELCH RX INPUT GROUND MON NO MON NC MON COM GROUND F NO F NC F/F COM J 0 CON B B B B B B B B B B0 B B B B B B B0 B B B B B B B MON NO MON NC MON COM F NO F NC F/F COM RX INPUT. V GROUND D N00 K MZHG K MZHG JU INSTALLED TO MONITOR WHEN C 00 C. D D N N U MCL0ACP Q N D N JU D ILLUMINATED WHEN K IS ENERGIZED INSTALL JU FOR LATCHED F/F OUTPUT REMOVE JU FOR MOMENTARY (00 ms) OUTPUT Q N VIN VOUT GND Q N R K D LEDGREEN R K D LEDYELLOW D ILLUMINATED WHEN K IS ENERGIZED R.K C 0 R.K R.K R C. C R 0 R 0 VDD R 00K JU C 00 C 0pF C.0 Y MHZ C 0pF RST MON F/F RA V POL ma ma. ma RB RB RB RB OSC OSC GND RTCC R K C. RX INPUT INSTALL JU TO MUTE RECEIVE AUDIO WITH HIGH SQUELCH INPUT JU U MICRO 0 R0 00K INSTALL JU IF RECEIVE AUDIO FROM RADIO IS HIGH LEVEL R JU R 0K K R CW 0K UB R K POT R 00K C. R 00K R 00K R 00K LF S R.K A A A A A A A0 R C JU ma DETECT ma DETECT.K D LEDGREEN Q N D LEDRED Q N LOCAL MIC MUTE C.0 INSTALL JU FOR db REMOVE JU FOR db PER OCTAVE DEEMPHASIS R K R K JU R 0K UD PER OCTAVE DEEMPHASIS R0 K R K LF R K UA 0 RX MUTE UB PS0 R 00K R 00K UC PS0 R K R 0 Q N R 0 Q N R0 BALANCE R.K Q0 N R CW K C UB LF Q N R0 R K POT R 0K 00pF K R 0 0 C. R 0K UC LF JU JU INSTALLED FOR TWO WIRE OPERATION T 00:00 JU0 C0. 00 VOLT C. 00 VOLT V ERZC0DK0 V ERZC0DK0 INSTALL JU & JU0 FOR TWO WIRE HALF DUPLEX JU C.0 C.0 L 0uH L 0uH R R R B SQUELCH 00K C.0 UD LF R R 00K 0K R K JU INSTALL JU TO MUTE RECEIVE AUDIO WITH UD 0 LOW SQUELCH INPUT R K POT LOCAL MIC AUDIO TO REMOTES CW UA 0 UB LF 0 R U U U VSS VEE B LOCAL MIC INPUT C. R 0K.M JU R K INSTALL JU FOR HIGH LEVEL MIC AUDIO Title CPI COMMUNICATIONS, INC. () 0 (00) DTP SERIES DC TERMINATION PANEL Size Document Number Rev D Tuesday, October, 000 Date: Sheet of B
.ma ma ma POL MON F/F CPI COMMUNICATIONS, INC. DTP SERIES 00DTPX00 REV B S/N C 0 T T C0 C C C C C C C C C C C C C C C C V V V V C C C0 C C C C C C JU JU JU JU JU JU JU JU JU JU JU JU JU JU JU0 JU JU JU JU R R R R D D D D D D D0 D D D C C U U U U U R0 L L L L R R R R R0 R R R R R R R R R R0 R R R R R0 R R R R R R R R R R R R R R R R R R R R R R R R R0 R R R R R0 R R R R R R0 R R R R R R R R R R R R R R R K D D D D D D Q Q Q Q Q Q Q Q Q0 Q Q Q Q U S Y U K K J J.mA ma ma POL MON F/F CPI COMMUNICATIONS, INC. DTP SERIES 00DTPX00 REV B S/N C 0 T T C0 C C C C C C C C C C C C C C C C V V V V C C C0 C C C C C C JU JU JU JU JU JU JU JU JU JU JU JU JU JU JU0 JU JU JU JU R R R R D D D D D D D0 D D D C C U U U U U R0 L L L L R R R R R0 R R R R R R R R R R0 R R R R R0 R R R R R R R R R R R R R R R R R R R R R R R R R0 R R R R R0 R R R R R R0 R R R R R R R R R R R R R R R K D D D D D D Q Q Q Q Q Q Q Q Q0 Q Q Q Q U S Y U K K J J Top View Bottom View
Reference Description CPI Part # DIODES D N00 Rect 00000 D,,,,,,0,,, N Small Signal Switching 000 D, LED T Green 00000 D, LED T Yellow 00000 D, LED T Red 00000 D LED T Amber 00000 TRANSISTORS Q,,,,,,,,,0,,, N NPN 0000 RESISTORS R,,,,,,,,,,0 K % / Watt 0000 R,,, 0K % / Watt 0000 R 0 Ohm % / Watt 000 R, K % / Watt 000 R 0 Ohm % / Watt 000 R,, K % / Watt 000 R0 Ohm % / Watt 0000 R,,.K % / Watt 000 R K % / Watt 000 R,,0, K % / Watt 000 R0,0,,,,0,,, 00K % / Watt 0000 R 00 Ohm % / Watt 0000 R Ohm % / Watt 0000 R,, 0 Ohm % / Watt 000 R. Meg % / Watt 000 R, K % / Watt 000 R 0K % / Watt 000 R 0K % / Watt 000 R,, 0K % / Watt 000 R, Ohm % / Watt 0000 R,.K % / Watt 000 R K % / Watt 000 R 0 Ohm % / Watt 000 R 0K % / Watt 000 R K % / Watt 000 R.K % / Watt 000 POTENTIOMETERS R,,, K Pot 00 INTEGRATED CIRCUITS U Volt Reg 000 U Reset Generator 000 U Quad OptoIsolator 00000 U Microcontroller 000 U, Quad OpAmp 0L000 U Quad Analog Gate 0000
Reference Description CPI Part # MISC. V, MOV 00 Y Crystal 00000 Cord Modular Line Cord 0000000 K DPDT Relay 000000 K, SPDT Relay 000000 L, 0uH Choke 00000 T 00:00 Transformer 00000 S Position Dip Switch 00000 W OPTION R,0 Ohm % / Watt 0000 C,0.0uF Mono Cer Dip 0000 V, MOV 00 FD OPTION (W option must also be installed) R 0 Ohm %/ Watt 000 T 00:00 Transformer 00000 C,.uF Elec Rad 00 Volt 00 Warranty CPI Communications, Inc. warrants each product manufactured by it to be free from defective material and workmanship and agrees to remedy any such defects or to furnish a new part in exchange for any part of any unit of its manufacture which under normal installation use or service discloses such defects, provided the unit is delivered by the customer to our authorized service center intact, with all transportation charges pre paid within two years from date of shipment to the original purchaser. Exceptions are semiconductors which carry only the manufacturer's standard warranty and lamp indicators and fuses which are warranted to be operational when shipped from the factory. No credit will be given for unauthorized repair. This warranty does not extend to any of our products which have been subjected to misuse, neglect, accident, incorrect wiring not our own, improper installation, or to use in violation of instructions furnished by us nor extended to units which have been repaired or altered outside of our factory or authorized service center, nor to cases where the serial number thereof has been removed, defaced, or changed, nor to accessories used therewith not of our own manufacture, nor to finish or appearance items. This warranty is in lieu of all other warranties expressed or implied and no person is authorized to assume for us any other liability in connection with the sale of our products. Please Note: CPI products are not authorized for use in applications where nonperformance may be life threatening, or where substantial risk to life and property may be present, without express written consent of the president of CPI Communications, Inc. CPI Communications, Inc. shall never be liable for consequential or indirect damages.