CES M-20 Repeater Maker plus Installation And Operation Manual Download Page 3

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MAN79 ©  CES 2009

Warranty

CES Wireless Technologies Corp. warrants this product to be free from defects in material and workmanship for 
three years from date of shipment. If such malfunction occurs, it will be repaired or replaced (at our option) without 
charge for materials or labor if returned to the factory. This warranty does not apply to parts damaged due to 
improper use- including accident, neglect, unreasonable use, and improper installation - or to unauthorized 
alterations or modifications of the equipment. It does not extend to damage incurred by natural causes such as 
lightening, fire, floods, or other such catastrophes, nor to damage caused by environmental extremes, such as power 
surges and or transients. It does not extend to microprocessors if is determined that the failure of a micro is due to 
static damage, application of improper voltages to the unit, or other problems nor related to circuit design. In such 
case or in the case of a desire to update the micro to a different version of software, such request must be specified 
in writing, and there will be a charge agreed upon by both parties.

This product is warranted to meet published specification and to operate as specified only when properly installed in 

radio equipment which complies with US FCC specification and the applicable radio manufacturer’s specifications. 
CES is not responsible for any operational problems caused by system design, outside interference, or improper 
installation. Installation and programming of this CES product must be completed by a qualified two-way radio 
technician or engineer.

Equipment for repair may be returned to the factory, freight prepaid, only with prior authorization. Please call 407-
679-9440 for an RMA number. A brief letter describing the nature of the defect should be included with the 
merchandise. Repair by other than CES will void this guarantee. In-warranty merchandise must be shipped, freight 
prepaid, to CES. CES will return the repaired or replaced equipment to purchaser, within the United States. 

This warranty applies to the original purchaser of the equipment only. CES is not liable under this warranty, or any 
implied warranty, for loss of use or for other consequential loss or damage experienced by the purchaser. Some 
states do not permit the exclusion or limitation of implied warranties or consequential damages. This warranty 
provides special legal rights, and the purchaser may have other rights that vary from state to state.

Copyright

The information in this manual, and any software in this product remains the property of CES. Reproduction, 
duplication, or disclosure is not permitted without the prior written consent of CES. CES reserves the right to 
change products, specifications, and installations data at any time, without notice.          

All information contained in this document is carefully prepared and offered in good faith as a guide in the 
installation, operation, use and servicing of our products. Installers must insure that the final installation operates 
satisfactory, within relevant regulatory requirements. We accept no responsibility for incorrect installation.

A CES PUBLICATION Copyright CES 1974-2010

Introduction

Summary of Contents for M-20 Repeater Maker plus

Page 1: ...20 Repeater Maker plus CES Wireless Technologies Corp 925 122 South Semoran Blvd Winter Park FL 32792 407 679 9440 support ceswireless com www ceswireless com MAN79 Version 1 2 Updated 31 Jan 10 Print...

Page 2: ...INSTALLATION 7 2 5 COMPONENT LAYOUT 8 2 6 RADIO INTERFACE CONNECTION 8 2 7 INTERCONNECT INTERFACE PINOUT 9 2 8 PROGRAMMING INTERFACE CONNECTOR PINOUT 9 2 9 JUMPERS 9 2 10 RADIO AND AUXILIARY RELAY IN...

Page 3: ...Installation and programming of this CES product must be completed by a qualified two way radio technician or engineer Equipment for repair may be returned to the factory freight prepaid only with pri...

Page 4: ...e are engaged in a program of continual product development the specifications and descriptions outlined in this manual are subject to change Please consult the amendment section for changes When you...

Page 5: ...t 0 5 lb Cabinet Aluminum Extrusion Voltage 12 V DC Current Idle 30 7mA Transmit 90 00mA Interface Cable 6 ft shielded 9 conductor cable and RM 20 connectors provided Potentiometers for level adjustme...

Page 6: ...er plus includes Programmable Roger Beep Programmable disconnect time out timer with disconnect warning beeps Programmable hang time Auxiliary relay controlled with programmable DTMF string PTT relay...

Page 7: ...or or deviation meter optional for transmitter deviation 1 8 flat blade adjustment tool or jeweler s screwdriver Oscilloscope or RMS meter voltmeter A DTMF telephone Handset Digital Multimeter Portabl...

Page 8: ...ally closed 3 AUX COMMON Auxiliary relay common 4 TX DISABLE Input 35 to 35 volts switch 2 5v 47k pull up to 12v 5 TX CTCSS Output CTCSS Output to Transmitter 6 TX AUDIO Output Transmit Repeat audio t...

Page 9: ...nect 12 volts not reverse protected Table 2 Interconnect interface DB 9 female connector 2 8 Programming Interface Connector Pinout Pin Function Signal Description 1 N A 2 Tip 3 Ring 4 N A Table 3 Pro...

Page 10: ...n 2 PTT NC This connection is generally not used In applications where two RM 20 s are used for cross band applications this contact may be used See Figure 3 0 Pin 3 Aux Common optional Pin 4 TX Disab...

Page 11: ...olt or lower to 3 volts or higher The active state of this input is programmable Pin 14 Ground same as pin 8 Pin 15 12V DC Connect to a source of regulated filtered 12VDC supply If separate power supp...

Page 12: ...the transmitter frequency If this level is difficult to obtain install or remove JP5 as follows If deviation is above 4 KHz and R69 is at minimum remove JP2 factory default If deviation is below 4 KHz...

Page 13: ...ase it as soon as the tone is heard Over the Air programming The model RM 20 can also be programmed over the air using a DTMF microphone or a portable radio equipped with DTMF keypad However an over t...

Page 14: ...code ID interval timer 0 90 3 3 minutes 23 TX time out timer 0 90 2 2 minutes 24 TX time out penalty 0 30 0 disabled 25 TX disable input 0 or 1 0 disabled 26 TX disable input polarity 0 or 1 0 active...

Page 15: ...nly Refer to tone chart in this manual for tone number and frequency CTCSS during hangtime 12 When this code is enabled the RM 20 will generate a CTCSS tone for the duration of the hangtime A CTCSS TX...

Page 16: ...econds don t forget to enter a pound key between commands and the end of the entry sequence 19 3 3 seconds 19 0 through 90 0 through 90 seconds Interconnect repeat 20 This parameter determines what au...

Page 17: ...s code is programmable for no penalty or up to 30 seconds at 1 second interval 24 0 no penalty 24 1 through 30 1 through 30 seconds TX disable in 25 This code is normally used when two RM 20 s are use...

Page 18: ...S RX tone1 code 5 Morse code ID letters 29 A Morse code ID can be sent based on a timer when COR CTCSS are deactivated or both When programming the ID call letters each character is entered by pressin...

Page 19: ...103 5 14 199 5 40 107 2 15 203 5 41 110 9 16 206 5 42 114 8 17 210 7 43 118 8 18 218 1 44 123 0 19 225 7 45 127 3 20 229 1 46 131 8 21 233 6 47 136 5 22 241 8 48 141 3 23 250 3 49 146 2 24 254 1 50 15...

Page 20: ...during Hang time 13 CTCSS tone 1 14 Repeater Hang time 15 Interconnect PTT input 16 Interconnect PTT input polarity 17 Interconnect mode input 18 Interconnect output polarity 19 Interconnect active pe...

Page 21: ...CES SUPPORT 407 679 9440 Page 21 MAN79 CES 2009 5 0 Circuit Diagram...

Page 22: ...CES SUPPORT 407 679 9440 Page 22 MAN79 CES 2009 6 0 Amendments Manual revised 01 31 10 5 26 PM...

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