FCC ID: 2AE6CER9000U2 Digital Repeater

Contents Contents Important Information ..................................................................................................... 1 Alert Icon ................................................................................................................. 1 Disabled Frequencies ............................................................................................. 1 Checking Items in the Package ...................................................................................... 4 Getting Started ............................................................................................................... 5 Product Overview .................................................................................................... 5 Installation Guide .................................................................................................... 7 Installation Requirements................................................................................. 7 Installation Steps .............................................................................................. 7 LCD Icon ................................................................................................................. 9 LED Indicator .......................................................................................................... 9 Basic Operations .......................................................................................................... 10 Turning the Repeater On/Off ................................................................................. 10 Reading from/Writing to a Repeater ...................................................................... 10 Adjusting the Volume ............................................................................................ 11 Squelch Level........................................................................................................ 12 Scan ...................................................................................................................... 13 IP Information Reset ............................................................................................. 14 Power Level .......................................................................................................... 15 Zone ...................................................................................................................... 15 Backlight ............................................................................................................... 16 Brightness ............................................................................................................. 17 Menu Reset ........................................................................................................... 18 TX/RX LED............................................................................................................ 19 Language .............................................................................................................. 20 Locking/Unlocking the Repeater ........................................................................... 21 i Contents Menu Navigation .......................................................................................................... 22 Repeater Information ............................................................................................ 22 Channel Information .............................................................................................. 22 IP Information ........................................................................................................ 23 Alarm Information ......................................................................................................... 24 Alarm Window ....................................................................................................... 24 POST Error Alarm ................................................................................................. 25 Fan Failure Alarm .................................................................................................. 26 Over Temperature Alarm ...................................................................................... 27 VSWR Alarm ......................................................................................................... 28 TX/RX Unlock Alarm ............................................................................................. 29 Over/Low Voltage Alarm ....................................................................................... 30 Optional Accessories .................................................................................................... 31 Troubleshooting ............................................................................................................ 32 Care and Cleaning ....................................................................................................... 34 Product Care ......................................................................................................... 34 Product Cleaning ................................................................................................... 34 Limited Warranty .......................................................................................................... 35 Warranty Card .............................................................................................................. 37 ii Important Information Important Information Before using this product, please read this user manual carefully. Alert Icon Caution: Indicates situations that could cause human injury or damage to your products. Note: Indicates tips that can help you make better use of your products. Disabled Frequencies 136 174 MHz No. 1 Frequency None 400 470 MHz No. Frequency 1 2 3 4 5 6 7 408 MHz 417.6 MHz 427.2 MHz 436.8 MHz 446.4 MHz 456 MHz 465.6 MHz 350 400 MHz No. Frequency 1 2 3 350.4 MHz 360 MHz 361.6 MHz 1 Important Information 4 5 6 7 8 9 363.525 MHz 369.6 MHz 375 MHz 379.2 MHz 388.8 MHz 398.4 MHz 450 520 MHz No. Frequency 1 2 3 4 456 MHz 463.125 MHz 499.2 MHz 503.97 MHz Caution!

This radio is restricted to occupational use only to satisfy FCC RF energy exposure requirements. 2 Important Information Warning:

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may cause undesired operation Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. For a Class B digital device or peripheral, the instructions furnished to the user shall include the following or similar statement, placed in a prominent location in the text of the manual:

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 1 Important Information This radio is designed for and classified as Occupational/Controlled Use Only, meaning it must be used only during the course of employment by individuals aware of the hazards, and the ways to minimize such hazards; NOT intended for use in an General population/uncontrolled environment DO NOT operate the radio without a proper antenna attached, as this may damage the radio and may also cause you to exceed RF exposure limits. A proper antenna is the antenna supplied with this radio by the manufacturer or an antenna specifically authorized by the manufacturer for use with this radio, and the antenna gain shall not exceed XdBi by the manufacturer declared. DO NOT transmit for more than 100% of total radio use time, more than 100% of the time can cause RF exposure compliance requirements to be exceeded. During operation, the separation distance between user and the antenna shall be at least XXcm, this separation distance will ensure that there is sufficient distance from a properly installed externally-mounted antenna to satisfy the RF exposure requirements During transmissions, your radio generates RF energy that can possibly cause interference with other devices or systems. To avoid such interference, turn off the radio in areas where signs are posted to do so. DO NOT operate the transmitter in areas that are sensitive to electromagnetic radiation such as hospitals, aircraft, and blasting sites 2 Important Information The antenna(s) used for this transmitter with x dBi listed in this table must be installed to provide a separation distance of at least XXcm from all persons related to this x dBi antenna listed in this table. note: XdBi Antenna Gain (dBi) in following table XXcm Safe Distance (m) in following table Test Tune-Up Max Output Frequency

(MHz) Power

(dBm) Power

(mW) Power Density

(mW/cm2) Antenna Gain Safe Distance

(m) 1.69 2.38 2.99 3.75 5.33 1.75 2.46 3.09 3.88 5.50 1.81 2.54 3.20 4.00 5.69 1.81 2.54 3.20 4.00 5.69 1.82 2.55 3.22 4.03 5.72

(dBi)

-5.0

-2.0 0 2.0 5.0

-5.0

-2.0 0 2.0 5.0

-5.0

-2.0 0 2.0 5.0

-5.0

-2.0 0 2.0 5.0

-5.0

-2.0 0 2.0 5.0 450.0125 46.7 47000 1.50 481.0125 46.7 47000 1.60 511.9875 46.7 47000 1.71 512.0125 46.7 47000 1.71 519.9875 46.7 47000 1.73 3 Checking Items in the Package Checking Items in the Package Please unpack carefully and check that all items listed below are received. If any item is missing or damaged, please contact your dealer. Repeater Power Cord User Manual 4 Getting Started Getting Started Product Overview Front Panel No. Part Name No. Part Name 1 2 3 4 Power Indicator Alarm Indicator RX Indicator TX Indicator 5 6 7 8 LCD Display Navigation Keys SET/EXIT Key Speaker Rear Panel No. Part Name No. Part Name 1 2 3 4 RX Connector (BNC) Ground Screw AC Power Inlet and Switch LED Indicators Green LED: Indicates power supply is normal when lit. 5 7 8 9 DB9 Connector DB26 Connector SMA Connector 10 RJ45 Ethernet Connector Getting Started No. Part Name No. Part Name Blue LED: Indicates overload or short circuit occurs for the power supply when lit. Red LED: Indicates reverse battery polarity when lit. DC Power Inlet/12V Lead-acid Battery DB15 Connector 5 6 TX or Duplexer Connector 11

(Type-N) 6 Getting Started Installation Guide Proper installation ensures the best possible performance and reliability of the repeater. Therefore, be sure to read the following instructions before installation. Installation Requirements 1. Installation Environment The repeater must be installed in a dry and well-ventilated place with ambient temperature of -30C to +60C and relative humidity of no more than 95%. 2. Installation Location The repeater can be installed on a rack, bracket, and cabinet, or on a desk. Caution: DO NOT place heavy objects on the repeater chassis. Installation Steps Install the repeater as follows:

1. Install the repeater at a proper location. 2. Attach all necessary accessories, like antenna feeder, power cord, data cable, etc. 3. Ground the repeater through the ground screw located on the rear panel. Note:

If the DC power supply or 12V lead-acid battery is used to supply power to the repeater, check and ensure that VDC or battery voltage is within the repeater operating voltage range of 10.8V to 16.5V. Check and make sure no blocking occurs for the air inlet on the front panel and the cooling fan on the rear panel. After turning on the repeater, check whether the repeater works properly by observing the states of the Power and Alarm Indicators located on the front panel. 7 Getting Started Parameter Configuration When the repeater proves to work normally, configure appropriate parameters (e.g. operating frequency, TX power, and signalling type) as per your actual requirements. Caution: Disconnect the power supply to the repeater before opening the chassis. 8 Getting Started LCD Icon Icon Name Icon Repeater Status Scan Indicator TX Power Indicator Network Connection Indicator Slot Indicator Scan is in progress when lit. Low TX power for the current channel High TX power for the current channel Network connection is normal when lit. Repeater is transmitting or receiving on slot 1 when lit. Repeater is transmitting or receiving on slot 2 when lit. Channel Mode Indicator The current channel is an analog or a digital channel. LED Indicator LED Indicator Repeater Status Power Indicator Repeater is connected to the power supply. TX Indicator channel. The repeater is transmitting on a digital or an analog RX Indicator The repeater is receiving on a digital/an analog channel. Alarm Indicator The repeater works abnormally. 9 Basic Operations Basic Operations Turning the Repeater On/Off ON: Turn on the repeater by connecting an AC or a DC power supply to it. During the power-up process, the Power indicator glows green and the LCD shows animation. OFF: Disconnect the AC/DC power supply. Reading from/Writing to a Repeater This option instructs the PC to read/write data from/to a repeater through the RJ45 Ethernet connector located at the rear panel of the repeater. The repeater could be connected to the PC directly or to the PC via router in LAN. Connecting Repeater to the PC Directly 1. Connect the repeater to the PC with an Ethernet cable (8-wire twisted pair cable). 2. Check the repeater IP address via menu operation. 3. Set the PC IP address to be in the same network segment as that of the repeater. 4. Click Connect at the CPS menu bar and then the Connect to Repeater window appears. 5. Click Scan to search for the repeater to which the PC will connect. 6. Select the IP address and click OK to connect the repeater to the PC. If connection is successful, is displayed at the CPS status bar. Upon successful connection, you may click Read or Write at the CPS menu bar to read from/write to the repeater. 10 PCRepeater Basic Operations Connecting the Repeater to the PC via Router in LAN 1. Connect the repeater to the PC via the router in LAN using an Ethernet cable (8-wire twisted pair cable). 2. Check the repeater IP address via menu operation. 3. Set the PC IP address to be in the same network segment as that of the repeater. 4. Click Connect at the repeater CPS menu bar and then the Connect to Repeater window appears. 5. Click Scan to search for the repeater to which the PC will connect. 6. Select the IP address and click OK to connect the repeater to the PC. If connection is successful, is displayed at the CPS status bar. Upon successful connection, you may click Read or Write at the CPS menu bar to read from/write to the repeater. Note: Before writing to the repeater, you may revert the PC IP address to its previous one and set the repeater IP address to be in the same network segment as that of the PC, to facilitate normal PC operation. Adjusting the Volume Press the key to increase the volume or the key to decrease the volume. 11 RouterPCRepeaterLAN Basic Operations Squelch Level This option can reduce background noise by adjusting the squelch level when the repeater is receiving signals. You may set the squelch level to Tight, Normal, or Open using the repeater menu. Tight squelch level can filter weak signals, and allow only strong signals to be received. If the squelch level is set to Open, the repeater will turn on the speaker and background noise will be heard. Follow the procedures below to set the squelch level. Procedure:

1. In the home screen, press the SET key to enter the main menu. 2. Use the

/

key to select the Function option. 3. Press the SET key to enter the Function menu. 4. Use the

/

key to select the Squelch Level option. 5. Press the SET key to enter the Squelch Level menu. 6. Use the

/

key to select Open, Normal, or Tight. 7. Press the SET key to set the selected option as the squelch level. To exit this menu, press the EXIT key. Note: This feature is applicable to analog channels only. 12 Basic Operations Scan The Scan feature allows the repeater to search the scan list that is attached to the current channel for an eligible channel to receive or unmute. Before initiating the scan function using the repeater menu, follow the procedures below to attach a scan list to the current channel using the CPS. Procedure:

1. Log in to the CPS. 2. Go to Conventional -> Scan -> Selected Scan List. 3. Add channels (analog or digital) to be scanned into the Selected Scan List. 4. Go to Conventional -> Channel -> Digital/Analog Channel -> Current Channel. 5. In the Scan/Roam List option, attach the Selected Scan List to this channel. After you have attached a scan list to the current channel, follow the following procedures to start/stop scanning via menu operation. Procedure:

1. In the home screen, press the SET key to enter the main menu. 2. Use the

/

key to select the Function option. 3. Press the SET key to enter the Function menu. 4. Use the

/

key to select the Scan option. 5. Press the SET key to enter the Scan menu. 6. Use the

/

key to select On or Off. 7. Press the SET key to save the settings in the system. To exit this menu, press the EXIT key. 13 Basic Operations IP Information Reset With this feature, you can restore IP information to factory defaults. Follow the procedures below to restore IP information to factory defaults. Procedure:

1. In the home screen, press the SET key to enter the main menu. 2. Use the

/

key to select the Function option. 3. Press the SET key to enter the Function menu. 4. Use the

/

key to select the IP Information Reset option. 5. Press the SET key and the prompt IP Information Reset? appears. 6. Press the SET key to restore IP information to factory defaults. To exit this menu, press the EXIT key. 14 Basic Operations Power Level You may set the TX power to High or Low. High power can extend repeater coverage, enabling you to communicate with farther terminals. The TX power is represented by the icons and respectively on the LCD display. Follow the following procedures to set the TX power. Procedure:

1. In the home screen, press the SET key to enter the main menu. 2. Use the

/

key to select the Power Level option. 3. Press the SET key to enter the Power Level menu. 4. Use the

/

key to select High or Low. 5. Press the SET key to save the settings in the system. To exit this menu, press the EXIT key. Zone A zone is a group of channels. Your repeater supports up to 128 channels and eight zones (Zone 0 to Zone 7), with a maximum of 16 channels per zone. Follow the following procedures to select a zone. Procedure:

1. In the home screen, press the SET key to enter the main menu. 2. Use the

/

key to select the Zone option. 3. Press the SET key to enter the Zone menu. 4. Use the

/

key to select a zone. 5. Press the SET key to save the settings in the system. To exit this menu, press the EXIT key. 15 Basic Operations Backlight This option allows users to control the backlight using the menu. Activating the backlight can illuminate the LCD display, so as to facilitate your operation. You may set the backlight to operate in any of the following modes:

Timed: Any key press operation can activate the backlight. If no foregoing event occurs within the specified time period, the backlight will go out automatically. Never: The backlight remains activated all the time. Note: When an alarm event occurs, the backlight will remain activated until the alarm disappears. Follow the procedures below to set the backlight. Procedure:

1. In the home screen, press the SET key to enter the main menu. 2. Use the

/

key to select the Basic Settings option. 3. Press the SET key to enter the Basic Settings menu. 4. Use the

/

key to select the Display option. 5. Press the SET key to enter the Display menu. 6. Use the

/

key to select the Backlight Off Time option. 7. Press the SET key to enter the Backlight Off Time menu. 8. Use the

/

key to select a desired time or Never. 9. Press the SET key to save the settings in the system. To exit this menu, press the EXIT key. 16 Basic Operations Brightness This option allows users to adjust brightness (07) using the menu. Follow the following procedures to set brightness. Procedure:

1. In the home screen, press the SET key to enter the main menu. 2. Use the

/

key to select the Basic Settings option. 3. Press the SET key to enter the Basic Settings menu. 4. Use the

/

key to select the Display option. 5. Press the SET key to enter the Display menu. 6. Use the

/

key to select the Brightness option. 7. Press the SET key to enter the Brightness menu. 8. Press the

/

key to increase brightness or

/

to decrease brightness. 9. Press the SET key to save the settings in the system. To exit this menu, press the EXIT key. 17 Basic Operations Menu Reset This parameter allows users to define the amount of time that the repeater remains in the menu mode. The counter will be activated after the repeater enters the menu. In the event of no key press operation within the preset time period, the repeater will automatically exit the menu. You may set this feature as follows:

Timed: If no key press occurs within the specified time period, the repeater will automatically return to the home screen. Never: The radio user can manually exit the menu only. Follow the procedures below to set the menu reset time. Procedure:

1. In the home screen, press the SET key to enter the main menu. 2. Use the

/

key to select the Basic Settings option. 3. Press the SET key to enter the Basic Settings menu. 4. Use the

/

key to select the Menu Reset option. 5. Press the SET key to enter the Menu Reset menu. 6. Use the

/

key to select Never or a desired menu reset time. 7. Press the SET key to save the settings in the system. To exit this menu, press the EXIT key. 18 Basic Operations TX/RX LED This option decides whether to give any LED alert when the repeater is transmitting and/or receiving. You can set the following TX/RX LED related parameters: All LEDs, TX LED, and RX LED. All LEDs: If the Enabled option is selected, TX LED and RX LED light when the repeater is transmitting and receiving. If the Disabled option is selected, neither TX LED nor RX LED lights when the repeater is transmitting and receiving. TX LED: If the Enabled option is selected, TX LED lights when the repeater is transmitting. If the Disabled option is selected, TX LED does not light when the repeater is transmitting. RX LED: If the Enabled option is selected, RX LED lights when the repeater is receiving. If the Disabled option is selected, RX LED does not light when the repeater is receiving. Follow the procedures below to set TX/RX LED related parameters. Procedure:

1. In the home screen, press the SET key to enter the main menu. 2. Use the

/

key to select the Basic Settings option. 3. Press the SET key to enter the Basic Settings menu. 4. Use the

/

key to select the LED option. 5. Press the SET key to enter the LED menu. 6. Use the

/

key to select any of the TX/RX LED related parameters among All LEDs, TX LED, and RX LED. 7. Press the SET key to enter the LED submenu. 8. Use the

/

key to select Enabled or Disabled. 9. Press the SET key to save the settings in the system. To exit this menu, press the EXIT key. 19 Basic Operations Language You can select a display language from the languages available in the repeater. This repeater supports English and Simplified Chinese. Follow the following procedures to select a display language. Procedure:

1. In the home screen, press the SET key to enter the main menu. 2. Use the

/

key to select the Basic Settings option. 3. Press the SET key to enter the Basic Settings menu. 4. Use the

/

key to select the Language option. 5. Press the SET key to enter the Language menu. 6. Use the

/

key to select Simplified Chinese or English. 7. Press the SET key to save the settings in the system. To exit this menu, press the EXIT key. 20 Basic Operations Locking/Unlocking the Repeater This repeater is equipped with Keypad Lock capability to prevent accidental key operation. Lock: You can set whether to allow the repeater to automatically lock the keys on the front panel and the auto lock delay time. Unlock: Press the key and then the SET key to unlock the keys on the front panel. Follow the following procedures to set this feature. Procedure:

1. In the home screen, press the SET key to enter the main menu. 2. Use the

/

key to select the Basic Settings option. 3. Press the SET key to enter the Basic Settings menu. 4. Use the

/

key to select the Keypad Lock option. 5. Press the SET key to enter the Keypad Lock menu. 6. Use the

/

key to select Never or an auto lock delay time. 7. Press the SET key to save the settings in the system. To exit this menu, press the EXIT key. 21 Menu Navigation Menu Navigation Repeater Information Under this menu, you can use the

/

key to view repeater information, including Model Type, Model Number, Data Version, Firmware Version, and Frontboard Version. Follow the procedures below to view repeater information. Procedure:

1. In the home screen, press the SET key to enter the main menu. 2. Use the

/

key to select the Repeater Information option. 3. Press the SET key to enter the Repeater Information menu. 4. Press the

/

key to view basic information of the repeater. To exit this menu, press the EXIT key. Channel Information Under this menu, you can use the

/

key to view channel information, including Channel Alias, TX Frequency, RX Frequency, Channel Spacing, TX CTCSS/CDCSS Type, and RX CTCSS/CDCSS Type. 22 Menu Navigation Follow the procedures below to view channel information. Procedure:

1. In the home screen, press the SET key to enter the main menu. 2. Use the

/

key to select the Channel Information option. 3. Press the SET key to enter the Channel Information menu. 4. Press the

/

key to view channel information. To exit this menu, press the EXIT key. IP Information Under this menu, you can use the

/

key to view IP information, including IP Address, Subnet Mask, Default Gateway, and MAC Address. Follow the procedures below to view IP information. Procedure:

1. In the home screen, press the SET key to enter the main menu. 2. Use the

/

key to select the IP Information option. 3. Press the SET key to enter the IP Information menu. 4. Use the

/

key to view IP information. To exit this menu, press the EXIT key. 23 Alarm Information Alarm Information The repeater can automatically detect its operation status in a real time way. When an abnormality occurs, the LCD display will give you a prompt message, and the Alarm Indicator will glow red. Alarm Window No. 1 2 3 Element Alarm Icon Alarm Message Alarm Code (08) 0: POST Error 1: Fan Failure 2: Over Temperature 3: Low Forward Power (reserved) 4: High VSWR 5: TX Unlock 6: RX Unlock 7: Over Voltage 8: Low Voltage 4 Alarm Count 24 Alarm Information POST Error Alarm The principal duties of the system during POST are as follows:

verify fan verify LCD display verify TX circuit verify RX circuit verify active duplexer circuit When an error occurs during POST, abnormality of partial functions happens and the system runs normally. In addition, the Alarm Indicator will glow red and the LCD display will give you the prompt message below:

You need to:

1. Disconnect the power supply, open the chassis, and check whether the LCD display is properly connected or damaged. 2. Disconnect the power supply and open the chassis to check whether the fan works properly. 3. Disconnect the power supply and open the chassis to check if the hardware cable gets loose or damaged. If yes, secure or replace the hardware cable. 4. If you cannot solve the problem, contact your local dealer for technical support. 25 Alarm Information Fan Failure Alarm When the fan fails to work, the Alarm Indicator will glow red and the LCD display will give you the prompt message below:

Then the repeater will automatically work at low TX power to protect the transmitter from overheating. You need to:

1. Check whether the fan is blocked by an object. If yes, remove it. 2. If you cannot solve the problem, contact your local dealer for technical support. When the fan restores to normal operation, the prompt message will disappear and the Alarm Indicator will go out. 26 Alarm Information Over Temperature Alarm When the temperature of the PA module exceeds the normal range, the Alarm Indicator will glow red and the LCD display will give you the prompt message below:

Then the repeater will stop transmitting, and you need to:

1. Check whether the Fan Failure Alarm prompt message appears on the LCD display. If yes, refer to measures taken in Fan Failure Alarm. 2. Check whether ambient temperature and ventilation conditions satisfy the foregoing installation requirements. If not, please make improvements as soon as possible. For example, install more air conditioners for optimal ventilation. 3. Check if the RF cable or antenna feeder that is connected to the transmitter is loose or damaged. Poor connection between them could cause high TX power. If yes, secure or replace the cable or antenna feeder. 4. If the above measures fail to solve the problem, contact your local dealer for technical support. When repeater temperature falls into the normal range, the prompt message will disappear and the Alarm Indicator will go out. 27 Alarm Information VSWR Alarm High voltage standing wave ratio (VSWR) of TX antenna connector could result in damage to the PA, and even failure of the transmitter. When the VSWR exceeds the normal range, the Alarm Indicator will glow red and the LCD display will give you the prompt message below:

Then the repeater will automatically works at low TX power. You need to:

1. Check whether the operating frequency of the repeater is in line with that of antenna. Both frequency mismatch and improper antenna could result in poor transmitting performance and even damage to the transmitter. If yes, please contact your local dealer to replace the antenna or program the repeater again. 2. Check if the RF cable or antenna feeder that is connected to the transmitter gets loose or damaged. If yes, secure or replace the cable or antenna feeder. 3. If you fail to solve the problem, contact your local dealer for technical support. When the VSWR falls within the normal range, the prompt message will disappear and the Alarm Indicator will go out. 28 Alarm Information TX/RX Unlock Alarm When the TX/RX PLL is unlocked, the Alarm Indicator will glow red and the LCD display will give you the prompt message below:

TX Unlock Alarm RX Unlock Alarm Then the repeater will automatically stop partial operations and the prompt message will remain on the LCD display. You need to:

1. Disconnect the power supply, open the chassis, and check whether the hardware cable gets loose or damaged. If yes, please secure or replace the cable. 2. If you cannot solve the problem, contact your local dealer for technical support. When the TX/RX PLL restores to normal operation, the prompt message will disappear and the Alarm Indicator will go out. Caution: Disconnect the power supply prior to opening the chassis!

29 Alarm Information Over/Low Voltage Alarm When power voltage is detected to be over or below the normal range (10.8V15.6V) of repeater, the Alarm Indicator will glow red and the LCD display will give you the prompt message below:

Over Voltage Alarm Low Voltage Alarm Then the repeater will automatically stop working and the prompt message will remain on the LCD display. You need to:

1. Check whether the power voltage is too low or too high. If yes, replace the DC power supply or external battery. 2. Check if the power cord gets loose or damaged. If yes, secure or replace the cord. 3. If you fail to solve the problem, contact your local dealer for technical support. When the voltage falls within the normal range, the prompt message will disappear and the Alarm Indicator will go out. Caution: If low voltage is detected when the repeater is powered by an external battery, please charge it in time. Disconnect the battery from the repeater before charging. 30 Optional Accessories Optional Accessories The following items are the main optional accessories for the product. Consult your local dealer for more other accessories. Power Cord EPWCAZ01 Programming Cable EPC03 Fuse EACC001 Caution: Use the accessories specified by the Company only. If not, we shall not be liable for any damage arising out of use of unauthorized accessories. 31 Troubleshooting Troubleshooting Phenomena Analysis Solution Power cord is not connected or is not securely connected Properly connect the power cord and secure connection. The repeater cannot be to the outlet. powered on. Check whether the fuse has Power cord fuse is damaged. blown. If yes, replace it with a new one. TX/RX frequency of the repeater is inconsistent with that of portable/mobile Reset frequencies. Group members cannot talk to terminals. each other, or the repeater cannot communicate with a subscriber radio. Failed to repeat useful signal If you cannot remove or bypass due to strong interference the interference source, change signal. or operate at other frequencies. The group member is out of Go within the coverage of the the coverage of the repeater. repeater. Group members cannot talk to each other, even though RX Your ID is inconsistent with Set your ID to be the same as that of other group members. that of other members. indication is given. Inconsistent CTCSS/CDCSS Reset CTCSS/CDCSS. Leakage of signal energy due to damaged connection cable. Replace the cable with a new one if necessary. Loose connection between the antenna connector and the cable, or loss of connection 32 Secure or replace the cable. Short communication range or poor audio Troubleshooting Phenomena Analysis Solution Invisible damage of cable one. Replace the cable with a new Duplexer is not properly set (if the duplexer is mounted). Contact the manufacturer or your dealer to reset the duplexer. If the above solutions cannot fix your problems, or you may have some other queries, please contact us or your local dealer for more technical support. 33 Care and Cleaning Care and Cleaning To guarantee optimal performance as well as a long service life of the product, please follow the tips below. Power off the repeater or disconnect it from the external battery before cleaning. Product Care Keep the product at a place of good ventilation and heat dissipation to facilitate normal work. Do not place irrelevant articles on the top of the product to ensure optimal heat dissipation. Do not pierce or scrape the product with any edged instruments or hard objects. Keep the product far away from substances that can corrode the circuit. Do not place the product in corrosive agents, solutions, or water. Product Cleaning Remove the dust and fine particles on the repeater surface with a clean and dry lint-free cloth or a brush regularly. Use a non-woven cloth with neutral cleanser to clean the keys, control knobs, LCD, and connectors after long-time use. Never use chemical preparations such as stain removers, alcohol, sprays, or oil preparations. Make sure the product is completely dry before use. 34 Limited Warranty Limited Warranty What This Warranty Covers and for How Long The Company warrants the manufactured products listed below against defects in material and workmanship under normal use and service for a period of time from the date of purchase as scheduled below:

ER9000 Digital Repeaters Accessories Two Years Six Months How to Get Warranty Service You must provide a completely filled warranty card, purchase invoice, and receipt in order to get warranty services. The purchase invoice or receipt should indicate the repeater, accessories, repeater serial number, purchase date, and purchase amount. What This Warranty Does Not Cover 1. Defect or damage resulting from use of the product in other than its normal and customary manner 2. Defect or damage caused by unauthorized product disassembly, repair, or modification 3. Damage due to force majeure, such as flood, lightning strike, earthquake, tsunami, fire, and abnormal voltage 4. Product that does not have proof of purchase, such as warranty card, purchase invoice, or receipt 5. Product which has had the serial number and the tamper-proof label removed or made illegible 6. Normal and customary wear and tear 35 Disclaimer Disclaimer The information in this manual is carefully examined and is believed to be entirely reliable. However, no responsibility is assumed for inaccuracies. All the specifications and designs are subject to change without notice due to continuous technology development. No part of this manual may be copied, modified, translated, or distributed in any manner without the prior written permission of the Company. 36 Warranty Card Warranty Card Purchase Information Customer Name:

Customer Phone:

Customer Address:

Purchase Date:

Repeater Information Model Number:

Serial Number:

Note:

This warranty card applies to after-sale and maintenance services for the product and accessories described above. You must provide this warranty card and purchase invoice in order to get warranty services. The Company does not assume liability for damages caused by human factors. For more details, contact your local dealer. 37 38