Instruction Manual

CPI Communications 941 Hensley Lane Wylie, Texas 75098Phone (972)429-7160 (800)869-9128 Fax (972)429-7165 (888) 437-5360 www.cpicomm.com

DR Series DC Remote Controls1/2013

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SPECIFICATIONS Subject to change without notice.

Power Requirements 120 VAC, 60 Hz for wall pack (provided) operation12 VDC to 16 VDC @ 600 mA maximum. Fused on circuit board.

Dimensions 9" x 4" x 7" inches

Weight DR10 - 5 lbs, DR20 - 5 lbs, DR30 - 5 lbs, DR40 - 5 lbs.

Audio Output to Speaker 2 Watts at 3% THD into 8 ohms, using supplied wall pack or 12 VDC.

Handset Earpiece Level Adjustable via internal potentiometer.

Frequency Response +/- 3dB from 300 to 3000 Hz. 1000 Hz reference.

Hum and Noise 50 dB below operating levels

Compression Less than 3 dB increase in output with 30 dB increase in input beyondthreshold. Threshold is adjustable from -20 dBm to +10 dBm.

Line Impedance 600 ohms or 5000 ohms, dip switch selectable.

Line Output Level Factory set at 0 dBm. Adjustable to +15 dBm maximum.

Control Currents Dip switch selection of eight possible control current configurations com-posed of the following current levels: -15mA, -6mA, -2.5mA, +2.5mA, +6mAand +15mA.

Operating Modes Standard: Two wire simplex.Two wire duplex. (Trunking mode, jumper selectable.)

Optional: -4W Four wire simplex. Audio on one pair and controlcurrents on the other.-FD Full duplex on four wires. TX audio and control currentson one pair, RX audio on the second pair.

Available Factory Options -M Push button monitor.-2F F1 / F2 push button. Current format is dip switch selectable.-I Push button intercom between remotes.

Please note: Some options are standard on some models. Some options not available on all models or incombinations with other options. No options are field installable.

General DescriptionThe DR series DC remotes are designed to provide remote control of a conventional or trunked two way radio

base station or repeater via a leased wire line or in-house twisted pair.The DR series is available in four different housing configurations. They are: the DR10 telephone style unit with

handset, the DR20 desktop console with desk microphone, the DR30 desktop console with built in electretcondenser microphone and the DR40 desktop console with goose neck microphone.

Standard features on all DR models include front panel PTT switch, line operated transmit indicator, off-hookmonitor function(DR10), RX and TX audio compression, two watt amplified speaker with volume control, linecontinuity sensor and parallel cross mute capability.

The DR10, 20, 30 and 40 may be wall mounted by ordering the -WM option. When wall mounting the DR20please note, no provisions are made for mounting the desk microphone.

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Pre-Installation ConsiderationsThe DR series DC remotes are designed with protection against both power and telephone line surges. This

protection circuitry requires the use of a properly grounded AC outlet. If the remote is to be powered directly fromDC the wall plug-in transformer is not used

Phone linesThe DR series is designed to work with a good quality leased metallic pair (phone line) or in house twisted pair

wiring. The maximum dc loop resistance, including the termination panel, cannot be greater than 10,000 ohms.

Parallel operationWhen several remote control units are connected in parallel the total system impedance will decrease to a point

where operation is degraded.To compensate for this effect, DR series remotes provide a dip-switch selectable 600 or 5000 ohm termination

impedance.In parallel remote installations using the same phone line, dip switch 7 should be in the OFF position (5000

ohms), in all remotes except the last one in the chain. For multi-point installations using more than one phoneline the above procedure applies to each phone line.

Up to ten DR series DC remotes may be connected in parallel. The maximum loss between any remote andthe termination panel must not exceed 20dB.

InstallationConnectionsPhone line connections are made using the supplied modular line cord. Power consist of plugging the wall pack

in to the nearest properly grounded AC outlet. If the remote is to be powered directly from a DC source, disconnectthe wall plug-in transformer from TB1 and connect a well grounded 12 to 16 volt DC supply. The positive leadshould connect to TB1 pin 1. The negative lead should connect to TB1 pin 2.

Control Current Settings - Table 1 shows the eight possible control current combinations available in the DRseries remote. Switches 1, 2 and 3 of the dip switch are used to select the desired control current format. Theyare accessible on the underside of the remote.

Table 1

Field Selectable Configuration SettingsThe DR series remotes are designed to be as user / technician friendly as possible and provide a wide range

of field selectable options. These dip switch selectable and jumper selectable options give the DR series greatflexibility in the field.

Table 2 illustrates the field configuration settings that are dip switch selectable.

PTT (F1) PTT (F2) Mon (F1) Mon (F2) Switch 1 Switch 2 Switch 3

+15mA OFF OFF OFF

+6mA ON OFF OFF

+15mA +6mA OFF ON OFF

+15mA -6mA ON ON OFF

+6mA +2.5mA OFF OFF ON

+6mA -2.5mA ON OFF ON

+6mA +15mA -2.5mA -2.5mA OFF ON ON

+15mA -15mA +6mA -6mA ON ON ON

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Table 2

Jumper SettingsThe DR series DC remotes have 21 solder dot jumpers on the PCB. Jumpers are considered to be "in" when

solder has been applied to form a short from one side to the other. Jumpers are considered to be "out" when nosolder has been applied and the circuit is open from one side to the other. Remove the four housing screws andopen housing to access jumpers.

The following describes field selectable jumper functions.

JU19 - Off-hook monitor function. Generates monitor current when handset is off-hook.IN = disabled, OUT = enabled.Must be IN for DR20, DR30 and DR40.

JU20 - Parallel Transmit Indication (PTI). Energizes PTT indicator when a parallel remote keys, locks outTX audio and disables control current generation from thisremote.IN = disabled, OUT = enabled.See "Setup Adjustments" for adjustment procedure.

JU16 - Cross Mute. Mutes speaker when a parallel remote keys.IN = enabled, OUT = disabled.Requires PTI enabled and adjusted.

JU14 - Trunking option for 2 wire system. Allows trunking status tones to be heard in earpiece whileremote is keyed.IN = disabled, OUT = enabled.Can not be used for DR20, DR30 or DR40 in 2 wire system.

JU17 & JU18 - High Loop Resistance. Allows use of PTI on DC loops with 6K to 10K resistance.IN = Loop resistance is 6K to 10K.OUT = Loop resistance is less than 6K.Ignore if PTI not enabled.

A description of all jumper functions appears on the schematic next to the jumper.

Line Continuity SenseThis feature will tell you, via the PTT LED, if your DC loop continuity has been lost.If the unit is keyed and there is no DC loop continuity, the PTT LED will not illuminate. When the unit is un-

keyed, the PTT LED will flash once.There are no adjustments for this feature.

Setup AdjustmentsThe following adjustments assume that the termination panel has been properly installed.

Switch # ON OFF

4 Phone line polarity is reversed. Phone line polarity normal.

5 Speaker volume can be turned all the waydown.

Speaker volume can not be turned all theway down.

6 Speaker active on-hook. Speaker active all the time.

7 600 ohm termination. 5000 ohm termination.

8 DR10 DR20

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Receive Line Input AdjustmentThe receive line input, R92, adjusts the audio level to the input of the compression amplifier circuitry. This

allows the threshold of compression be adjusted from -20 dBm to +10 dBm.While applying an RF signal modulated with a 1000 Hz tone at 60% system deviation to base station receiver,

adjust the termination panel line output control for 0 dBm to the phone line. Adjust each remote as follows:a. Connect a scope or analog AC volt meter to ground and pin 14 of U8.b. With R92 fully counter clockwise, adjust in a clockwise direction until the AC voltage level on scope or meter

just stops increasing. This point is the threshold of compression.c. Remove the RF Signal from the base station.

Transmit Line Out AdjustmentThis level is preset at the factory for 0 dBm out to the phone line and should not require readjustment at

installation. If needed, the procedure is as follows:1. With the handset off-hook (if applicable) depress the PTT switch and adjust the mod out pot (R63), while

speaking in a normal voice, until 0 dBm is measured across the phone line at the termination panel.

Microphone SensitivityR64 controls the microphone audio level into the transmit compression circuit and therefore acts as a sensitivity

control. This potentiometer has been factory set to provide adequate compression for normal voice audio witha relatively quiet background noise level.

PTI (Parallel Transmit Indication) AdjustmentIf you do not need the PTT indicator to be line operated and you are not using the cross mute feature you may

skip the following procedure.Before making the following adjustments, please verify that: The chosen control current format matches the

requirements of the termination panel being used at the radio base station or repeater site. See Table 1 for dipswitch settings.

The remote must be connected to the termination panel via your in house wiring or leased wire line.1) Remove the four housing screws that secure the top half of the housing. Set the unsecured top

half of the housing to the right of the remote. Do not unplug the ribbon cable from the bottom unit.2) With the remote powered up, depress and hold the PTT switch. The red PTI LED (DS5) on the base

board, PCB in lower half of housing, should illuminate. If it is illuminated go to step 3. If it is not illuminated adjustR176 counter-clockwise until the PTI LED illuminates.

3) Release the PTT switch. The PTI LED (DS5) should no longer be illuminated. If it is still illuminated,proceed to step 4. If it is not illuminated, verify once more that the PTI LED comes on when the PTT switch isdepressed and goes out when it is released. If this is true then proceed to step 6.

4) Since the PTI LED (DS5) is still on you must adjust R176 clockwise until it just goes out. If you reachthe end of adjustment of R176, it clicks as you turn it, and the PTI LED (DS5) is still on, proceed to step 5. If PTILED (DS5) goes out, verify once more that the PTI LED comes on when the PTT switch is depressed and goesout when it is released. If this is true then proceed to step 6.

5) Power down the remote. Install solder dot jumpers JU17 and JU18. Return to step 2.6) Remove solder dot jumper JU20. Adjustment complete.

Circuit AnalysisReceive Audio PathReceive audio from the phone line enters through transformer T3. The control for Receive line input, R92,

adjusts the signal level passed to the compression amplifier formed by U8. The compression amplifier operatesby sampling the output of U8-C through R107 and C57 and then rectifying it with D21 and D20. The rectified dcvoltage, which varies as the receive audio level varies, controls the impedance of Q4. The varying impedanceof Q4 controls the signal level input to U8-A. C40 and R77 control the compressor attack and decay time. U8-D and it's associated circuitry form a high pass audio filter which reduces 60 Hz components by as much as 40dB.

The compressor output is passed on through the front panel volume control to speaker drivers U3 and U4. Thecompressor output is also fed through R94 to the earpiece amplifier circuitry.

Transmit Audio PathMic level audio is fed to preamp U7-A or U7-D, depending on which mic is used. Preamplified transmit audio

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is routed through audio gate U10-A or U10-C, depending on which mic is used, to the mic level adjustment R64.R64 sets the signal level passed to the compression amplifier formed by U2. The compression amplifier operatesby sampling the output of U2-A through R33 and C27 and then rectifying it with D5 and D6. The rectified dc voltage,which varies as the transmit audio level varies, controls the impedance of Q3. The varying impedance of Q3controls the signal level input to U2-C. C30 and R35 control the compressor attack and decay time. U2-B and it'sassociated circuitry form a high pass audio filter which reduces 60 Hz components by as much as 40 dB.

The compressor output is gated through U6-C and fed to the phone line driver circuit of U5-A and U5-C. U5-A and U5-C form a push-pull amplifier to drive transformer T3.

Control Current GenerationActivation of the PTT, Monitor or Hook-Switch off-hook will cause U12 pin 10, labeled High Voltage Start, to golow. This pulls pin 4 of U1 to .77Vdc causing it to output a »15Vdc square wave at » 50kHz on pins 9 and 10. Thisoutput is pulse width modulated by U1 to provide the appropriate voltage at HIGH VOLTAGE+ and HIGHVOLTAGE-. U7-B is configured to limit high voltage output to 190Vdc. The voltage at HIGH VOLTAGE+ andHIGH VOLTAGE- is continuously adjusted by U1 to maintain a constant current level which is regulated by U7-C. The current level is determined by the control format chosen via dip switches 1, 2 and 3 (See table 1) and thecontrol function, PTT or Monitor, selected at the time.

Parts ListDR Series main PCB #700-DRBB-200 Rev. B

Reference Description CPI Part #

CAPACITORSC1,2,17,18,26,46,47,52,53,66,67,71,72 .01uF Mono Cer Dip 208-0092-103C3 .0033uF Met Mylar 208-0211-332C4 390pF Mono Cer Dip 200V 208-0071-391C5,7,8,16,20,22,31,33,37,49,50,59,61,69 .1uF Mono Cer Dip 208-0092-104C6 22uF Elec Rad 208-2022-226C9,73 2.2uF Elec Rad 208-4052-225C10,28,58,70 100uF Elec Rad 208-2021-107C11,12,13,54,55,56 .033uF Met Mylar 208-0212-333C14,36 470pF Mono Cer Dip 208-0071-471C15,19 4.7uF Elec Rad 208-4042-475C21,60 1000uF Elec Rad 208-2031-108C23 .01uF Cer Disc 1KV 208-0023-103C24 22uF Elec Rad 208-2000-002C25 180pF Mono Cer Dip 208-0071-181C27,30,40,57 1uF Elec Rad 208-4052-105C29,38 .47uF Elec Rad 208-4052-474C32,35,62,63 220uF Elec Rad 208-2021-227C34 47pF Mono Cer Dip 208-0071-470C39 220uF Elec Rad NP 208-2031-227C43,44 4.7uF Elec Rad 208-2062-475C64,65 20pF Cer Disc 208-0001-200C68 10uF Elec Rad 208-4022-106C74 .22uF Mono Cer Dip 208-0092-224

DIODESD1,7,8 1N4937 600V Fast Recovery Rect 212-0102-012D2 1N5271B 100V Zener 5% 1/2W 212-0110-012D5,6,20,21,28,29,30,31,32,37,38,39,40 1N4148 Small Signal Switching 212-0001-001D9,18,22 1N4735A 6.2V Zener 5% 1W 212-0100-008D10,11,12,13,14,15,16,17,23,24,25,26,33,34,35,36 1N4004 400V 1A Gen Purpose Rect 212-0002-004D27 1N4746A 18V Zener 5% 1W 212-0100-019

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Reference Description CPI Part #TRANSISTORSQ2 Mosfet N-Chan 240-2210-003Q3,4,9,10,14,15,19,21,24,25,27,28 2N2222 NPN 240-2222-000Q5,8,16,17 MPSA42 NPN 300V 240-0042-000Q6,7 MPSA92 PNP 300V 240-0092-000Q11,12,13,22,23,26 2N2907 PNP 240-2907-000Q18 MJE521 NPN 212-0001-002

RESISTORSR1,13,21,23,25,28,31,37,49,52,75,76,80,82,116,126,145,148,149,159,164,165,179,181 10K 1/4W 5% 242-0001-103R2 4.7M 1/4W 5% 242-0001-475R3 10.0K 1/4W 1% 242-0014-100R4,72 1.82K 1/4W 1% 242-0013-182R5,32,105 6.8K 1/4W 5% 242-0001-682R6 1ohm 1/2W 5% 242-0002-001R7,29,33,34,42,51,78,107,122,128,130,171 1K 1/4W 5% 242-0001-102R8 22 1/4W 5% 242-0001-220R9,53 3.9K 1/4W 5% 242-0001-392R10 5.1K 1/4W 5% 242-0001-512R11,24 100 1/4W 5% 242-0001-101R12,15,16,17,18,47,50,74,90,106,112,113,114,115,118,119,123,124,158,172 100K 1/4W 5% 242-0001-104R14,104,160 220K 1/4W 5% 242-0001-224R19,173 22K 1/4W 5% 242-0001-223R20,87,88,117,120,146,157,162,163,178 4.7K 1/4W 5% 242-0001-472R22,67,170 1M 1/4W 5% 242-0001-105R26,79,81,109,111,140 150K 1/4W 5% 242-0001-154R27,44,54 27K 1/4W 5% 242-0001-273R30,46,143,144,145 470 1/4W 5% 242-0001-471R35,77 1.8M 1/4W 5% 242-0001-185R36,103 1.2K 1/4W 5% 242-0001-122R38,39,40,96,97,161 2.7 1/4W 5% 242-0001-027R41,43,65,93 18K 1/4W 5% 242-0001-183R55 560K 1/4W 5% 242-0001-564R56 390K 1/4W 5% 242-0001-394R59,60 47 1/4W 5% 242-0001-470R66,85,108,110,142 68K 1/4W 5% 242-0001-683R68,70,100,101,134,137 10.0M 1/4W 1% 242-0016-106R69,71 68.1K 1/4W 1% 242-0014-681R73 6.81K 1/4W 1% 242-0013-681R89,121 180 1/4W 5% 242-0001-181R95 620 1/4W 5% 242-0001-621R98,102 100.0K 1/4W 1% 242-0015-100R99 1K 1/4W 1% 242-0013-100R125,135,138 1.0M 1/4W 1% 242-0016-100R127,129 10 1/4W 5% 242-0001-100R131 52.3K 1/4W 1% 242-0014-523R132 220.0 1/4W 1% 242-0012-220R133,151 47K 1/4W 5% 242-0001-473R136,139 182.0K 1/4W 1% 242-0015-182R141 270K 1/4W 5% 242-0001-274R147 220 1/4W 5% 242-0001-221R150,152,155,156,177 390 1/4W 5% 242-0001-391

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Reference Description CPI Part #

R154 39K 1/4W 5% 242-0001-393R166 470K 1/4W 1% 242-0015-470R167 3.60K 1/4W 1% 242-0013-360R168 30.0K 1/4W 1% 242-0014-300R169 8.20K 1/4W 1% 242-0013-820R174 120K 1/4W 5% 242-0001-124R175 1.5K 1/4W 5% 242-0001-152R180 4.12K 1/4W 1% 242-0013-412RN1 Resistor Network 100K x 9 242-0117-104

POTENTIOMETERSR63 250K Single turn Vert Adj 242-0101-254R64 5K Single turn Vert Adj 242-0101-502R83,92,94 25K Single turn Vert Adj 242-0101-253R91 1K Single turn Vert Adj 242-0101-102R176 1K Multi-turn Vert Adj 242-0104-102

INTEGRATED CIRCUITSU1 PWM Control 420-0494-000U2,5,7,8 Quad Bi-FET Op Amp 420-L347-000U3,4 Audio Power Amp 420-0380-000U6,10 Quad Bilateral Switch 412-4066-000U9 Opto-Isolator 419-0035-000U11 Quad Low Power Op Amp 420-0324-000U12 Micro-Controller 425-1655-000U15 Under Voltage Sensor 425-7757-000

MISC.DS1 LED T1 Yellow Diffused 214-0002-003DS2, DS5 LED T1 Red Diffused 214-0002-001DS3 LED T1 Orange Diffused 214-0002-002DS4 LED T1 Green Diffused 214-0002-004J2 (DR10) Handset Jack 228-0041-010J2 (DR20) Desk Mic Jack 228-0041-186J3 Mod Jack Bottom Entry 228-0041-026J4 Header Shrouded 26 Position 228-0101-001 L2, L3 150uH Choke 232-0000-150V1, V4 MOV Z5L241 200V 242-0119-241S1 (DR10) Hook Switch 244-0100-009S2 8 Position Dip Switch 244-0002-008T1 Transformer Flyback 16978 246-0001-008T2,T3 Transformer Audio 600:600 246-0100-003Y1 Crystal 4Mhz 258-0002-002Desk Microphone CPI Desk Mic Mod Ash 234-0003-004Handset CPI Handset K-Style Mod Ash 234-0005-013Coil Cord CPI Modular Coil Cord 6ft. Ash 600-0013-007

-4W OptionC45, 48 .01 Mono Cer Dip 208-0092-103L1, 2 150uH Choke 232-0000-150V2, 3 MOV Z5L241 200V 242-0119-241R58, 61 47 1/4W 5% 242-0001-470

-FD Option (This option consists of the following parts plus the -4W Option)C41, 42 4.7uF Elec Rad 208-2062-475

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Reference Description CPI Part #

C51 .1uF Mono Cer Dip 208-0092-104D3, 4 1N4735A 6.2V Zener 1W 212-0100-008D19 1N4148 Small Signal Switching 212-0001-001Q9 2N2222 NPN 240-2222-000R45 220K 1/4W 5% 242-0001-224R48, 86 100K 1/4W 5% 242-0001-104R57 470 1/4W 5% 242-0001-471R62 10K 1/4W 5% 242-0001-103R84 27K 1/4W 5% 242-0001-273T2 Transformer Audio 600/600 246-0100-003

DR series Top PCB #700-00FP-200 revision CD1,D3 LED T1 Green Diffused 214-0002-004D2 LED T1 Red Diffused 214-0002-001R1 10K Volume Pot 242-0115-103LS1 8 Ohm Oval 234-0001-004S1,S2,S4 Push Button Switch, Black 244-0030-000S3 Push Button Switch, Red 244-0030-002X1 (DR10 & DR30) Electret Microphone 234-0002-004X1 (DR40) Gooseneck Microphone 234-0003-003

26 position cable assembly 600-OTSR-025

PCB Views for Control Panel P/N 700-00FP-200 rev. D

Component Side Solder side

Q1

C39

C24

C21

C60

C12C11

C13

C54

C55

C56

C27

C30

C29

C57C40

C38

C15

C19

C73

C9

C6

C42

C41 C44C43

V2

V3 V4

V1

R176

D19

D6

D5

D21

D20

D37

D38

D40

D39

D30

D29

D31

D28

D32

JU3

JU6

JU8

JU7

JU16

JU9

JU5

JU2

JU1JU4

JU17

JU18

JU14

JU13

JU15

JU19

JU20

JU21

C3

C23

T1

Q9

Q3

Q4

Q22

Q10

Q12

Q11

Q24

Q26

Q13

Q25

Q14

Q15

Q19

Q21

Q23

Q28

Q27

Q17

Q8

Q7

Q5

Q6

Q16

C75

C26

C7 C51

C14

C34

C31

C36

C37

C52

C72

C16 C18

C17

C33

C69

C71

C8

C49

C50C25

C5

C45

C48

C46

C47

C74

C53

C65

C64

C66 C67

C61

C22

C2C1

C20

C4

C59

C10

C28

C68

C70

C58

C32

C35

C62

C63

U9U1

Q2

U15

U12

S1

NC

NO W

J3

L1

L4

L2

L3

T3

T2

R92

R83R63

R64R91

R94

S2

J4

Y1

D17

D3

D4

D9 D18

D36

D33

D34

D35

D2

D1

D8

D7

D16

D15

D14

D12

D13

D10

D11

D22

D25

D27

D26

D23

D24

Q18

F1

TB1

J2

RN

1

J1

R36

R11

R86

R48

R12

R15

R62

R13

R31

R23

R179

R84

R54

R32

R65

R93

R67

R45

R14

R9

R53

R20

R10

R55

R85

R66

R33

R35

R34

R51

R37

R104

R105

R146

R49R89

R88

R87

R122

R121 R149

R150

R148

R74

R76

R106

R107

R77

R78

R47

R75

R29

R28

R41

R50R90

R52

R177

R165

R164

R178

R166

R125

R147

R16

R17

R18

R19

R38

R40

R39

R167

R126

R124

R123

R160

R161

R127

R129

R130

R128

R133

R27

R43

R44

R46

R30

R42R26

R25

R24

R57

R59

R61

R58

R60

R136

R181

R171

R172

R170

R173

R174

R175

R139

R138

R135

R137

R134

R117

R116

R151

R120

R112

R115

R114

R119

R113

R156

R155

R157

R159

R158

R154

R162

R180R169

R163

R168

R98

R100

R99

R101

R102

R131

R132

R96

R97

R95

R72

R73

R69

R71

R70

R68

R6

R1

R21

R22

R2

R3

R4

R5

R7

R8

R56

R142

R111

R82

R108

R81

R79R110

R80

R109

R140

R153

R141

R144

R143

R152

U2

U11U7

U8

U10

U5

U6

U3

U4PT ADJ

PT

6m

A

2.5m

A

15mA+POL

12

11

10

45R1

118R

03R1

S/N

REV B

700-DRBB-200

DR SERIES

1994C

PCB Views for P/N 700-DRBB-200, Rev. B

Component Side

Q1

C39

C24

C21

C60

C12C11

C13

C54

C55

C56

C27

C30

C29

C57 C40

C38

C15

C19

C73

C9

C6

C42

C41C44 C43

V2

V3V4

V1

R176

D19

D6

D5

D21

D20

D37

D38

D40

D39

D30

D29

D31

D28

D32

JU3

JU6

JU8

JU7

JU16

JU9

JU5

JU2

JU1JU4

JU17

JU18

JU14

JU13

JU15

JU19

JU20

JU21

C3

C23

T1

Q9

Q3

Q4

Q22

Q10

Q12

Q11

Q24

Q26

Q13

Q25

Q14

Q15

Q19

Q21

Q23

Q28

Q27

Q17

Q8

Q7

Q5

Q6

Q16

C75

C26

C7C51

C14

C34

C31

C36

C37

C52

C72

C16C18

C17

C33

C69

C71

C8

C49

C50 C25

C5

C45

C48

C46

C47

C74

C53

C65

C64

C66C67

C61

C22

C2 C1

C20

C4

C59

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Title

Size Documen t Number Rev

Date: Sheet of

V C C

V B

V C C

V C C

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V S SV C C V D D G N D

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2 W I R E H A L F D U P L E X

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INSTALL JU10 & JU11 FOR

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INSTALL JU9 & JU12 FOR

2 0 0 V

2 0 0 V

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1(214)437-5320 1(800)869-9128

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24

Title

Size

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C.

1(214)437-5320 1(800)869-9128

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34

Title

Size

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Sheet of

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VC

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COMMUNICATIONS, INC.

1186 COMMERCE DRIVE, RICHARDSON, TX. 75081214-437-5320 800-869-9128 FAX 214-437-5360

Model #

Serial #

Assembled by

Tested by

Packed by Mod Jack

R94Earpiece Adj.

Dip SwitchR63Mod Out

R64Mic Level

R92RX Input

16

WarrantyC P I C ommunications 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 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. E xceptions are semiconductors which carry only themanufacturer's s tandard warranty and lamp indicators and fuses which are warranted to be operational whenshipped from the factory. No credit will be given for unauthorized repair.

T his 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 extendedto units which have been repaired or altered outs ide of our factory or authorized service center, nor to cases wherethe serial number thereof has been removed, defaced, or changed, nor to accessories used therewith not of ourown manufacture, nor to finish or appearance items.

T his warranty is in lieu of all other warranties expressed or implied and no person is authorized to assume forus any other liability in connection with the sale of our products .

P lease Note: C P I products are not authorized for use in applications where nonperformance may be lifethreatening, or where substantial risk to life and property may be present, without express written consent of thepres ident of C P I C ommunications . C P I C ommunications shall never be liable for consequential orindirect damages .

Notes : _________________________________________________________________

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