Single Channel Standalone Receive el-2541

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Single Channel Standalone Receive el-2541



    Single-Channel Wireless Receiver Introduction

    The EL-2541 is a single channel standalone receiver that provides an interface between MasterLink transmitters and most popular control panels. The receiver uses SecuriCode? technology to prevent code grabbing and scanning. Using this method, the code received from the transmitters changes every time the transmitter is used. The EL-2541 can support up to 16 individual transmitters, each with its own unique 24-bit serial number. The condition of each transmitter is shown on the receiver’s display.

    Tamper Switch/AdvanceSelectAntennaBack ButtonButtonButtonConnectorDual7-SegmentDisplay




    Output LEDsOutput LEDsJumperOutput Relays(optional)


    Terminal Block


     Figure 1: EL-2541 (PCB)

    1: Installation

    Consider the following before mounting the receiver: ? Mount the receiver in a central location as high above ground level as possible.

    ? Whenever possible, minimize the distance between the receiver and transmitters.

    ? Metal based construction materials, such as steel reinforced concrete walls, reduce the range of radio transmissions.

    1. Remove the front cover by unscrewing the screws located at the four corners of the receiver. 2. Knockout the required wiring hole. 3. Mount the unit on the wall by attaching two screws in the keyhole slots and securing with the two bottom screws see Figure 2.

    Figure 2: Wall Mounting

    OGOGOGOGOG+VinGNDARMOUTBTN1BTN2TMPRTROUBLEControl Panel4. Connect the antenna to the antenna connector see Figure 1. 3124567891011121314155. Connect the receiver to the control panel as shown in Figure 3. 6. Register the transmitters and program the receiver as explained in the Programming section. Terminals 1(+) & 2(-): 12Vdc power input. 7. Replace the front cover.

    Terminal 3: Armed input - connect to an output on the control panel that or Active Low is activated when the system is as Active High armed. Programmable

    Terminals 4 & 5: Zone output for detection devices.

    RECEIVERTerminals 6 & 7: Zone output for Button 1 on OGOGhand-held transmitters.

     Terminals 8 & 9: Zone output for Button 2 on hand-held transmitters.

    Terminals 10 & 11: Tamper output activated by a Tamper transmission or by the tamper switch on the receiver. ZONE 1Terminals 12 & 13: Trouble output activated by an Inactive condition, Jamming Normally Inactive Programmable as Normally Active or condition or a Low Battery COMMONtransmission.

    CONTROL PANELTerminal 14: Spare ZONE 2Terminal 15: Earth Relay Output

    Figure 3: Terminal Block Connections

    2: Outputs

    The EL-2541 comprises five outputs that can be connected to the control panel’s zone inputs. These are available as either open collector outputs or relay outputs.

    Jumper Position Relay outputs can be configured as Normally N.O.N.C.Open or Normally closed Normally Open using the jumper situated N.O.N.C.Output OGOGNormally Closed directly below each relay. Open Collector

    3: Programming

    In this section default values are indicated in bold.

    To program the receiver: 1. Disarm the control panel to which the receiver is connected. 2. Remove the front cover of the receiver. All programming and transmitter registration is performed using the buttons ADVANCE, SELECT and BACK (tamper switch) located at the top of the board. 3. Press SELECT to enter programming mode; the Program LED is lit.


    RG 0 AT Registration Mode Zone Output Mode Activation Time

    LT B SU List Transmitters Button 1 Output Mode Supervision Time

    1 4. Press ADVANCE to scroll through the menu until the required function is shown on the display (pressing BACK enables you to scroll backwards). The available functions are:

    TT B2 DT Test Transmitters Button 2 Output Mode Display Time

    RT T DF Reception Test Tamper Output Mode Display Function

    DL TR ED Delete Transmitter Trouble Output Mode Event Display

    AL AEP Delete All Transmitters Armed Input Mode Exit Programming


    5. Press SELECT to select the function. 6. To exit programming mode, press ADVANCE and BACK together or select Exit Programming (EP) from the menu. Programming Mode is automatically terminated 10 minutes after the last keystroke.

    3.1: Registering and Deleting Transmitters

    Once the receiver is installed, up to 16 individual transmitters can be registered. Transmitter registration enables the receiver to recognize the source of received transmissions.

    To register transmitters: 1. Press SELECT to enter programming mode; “rG” appears on the display.

    2. Press SELECT; the Register LED is lit. 3. The registration procedure differs for each transmitter, refer to the installation instructions provided with the transmitter for further details. 4. On registration, the newly assigned transmitter number is displayed and four acknowledge tones are sounded. Write the transmitter number on the Transmitter Register form for future reference. Where relevant, you should also write this number on the stickers provided with the transmitter. Should the transmitter fail to register, Er (Error) is displayed and an error tone is sounded. 5. Press ADVANCE; the Register LED is lit and the receiver is ready to register the next transmitter. 6. After 16 transmitters are registered, if any attempt is made to register additional transmitters, “FL“ is displayed, an error tone is sounded and registration mode is automatically terminated. 7. Press SELECT to exit Registration mode. Registration mode is automatically terminated after 4 minutes.

    To delete a registered transmitter: 1. Press ADVANCE or BACK until Delete mode “dL” appears on the display. 2. Press SELECT; the Delete LED flashes. 3. Press ADVANCE or BACK until the required transmitter is displayed. 4. Press and hold down SELECT; the display flashes. 5. While holding down SELECT, press ADVANCE twice; a long tone is sounded confirming that the transmitter has been deleted. To delete all registered transmitters: 1. Press ADVANCE or BACK until Delete All mode “AL” is shown on the display. 2. Press SELECT; the Delete LED flashes. 3. Press and hold down SELECT; the display flashes. 4. While holding down SELECT, press ADVANCE twice; a long tone is sounded confirming that all transmitters have been deleted.


3.2: Output Settings Note: When holding down SELECT, if the operation is not completed within 2? seconds, the operation is cancelled. The EL-2541 comprises 5 programmable outputs for connection to zones on the control panel. Table 1 explains the display and activation of each of these outputs.


    0 Zone Alarm transmission from detection devices

    B 1 Button 1 Pressing Button 1 on a hand-held transmitter

    B2 Button 2 Pressing Button 2 on a hand-held transmitter

    T Tamper Tamper transmission from one of the transmitters or the receiver

    TR Trouble Inactive transmitter, Low Battery transmission or code jamming attempt

    Table 1: Outputs

    Note: During programming, Button 2 is displayed as B .” and Trouble is displayed as “ T .”.

    To program output settings: 1. Press SELECT to enter programming mode. 2. Press ADVANCE or BACK until the required output appears on the display.

    3. Press SELECT; the Function LED is lit and the Register LED is lit whenever the current selection is displayed. 4. Using the ADVANCE key, choose the normal state of the output from Table 2 and press SELECT. Note: In the following two tables, the display letter appears next to the display letter of the output. For example, if the tamper output is normally active the letters “tA” are displayed.


    1 Inactive The output is normally inactive

    A Active The output is normally activated

    Table 2: Normal State

    5. Using the ADVANCE key, choose the operation mode from Table 3 and press SELECT.


    N Momentary The output is activated for the programmed amount of time

    F Follower The output is dependent on the state of the transmitter (Not Buttons)

    L Latched The output remains activated until the system is disarmed

    T Toggle The output is toggled on each transmission (Buttons Only)

    Table 3: Operation Mode

    Note: If one of the button outputs (B1 or B2) is defined as Latched, when the system is disarmed the output operates in Momentary mode. If the zone output (O) is defined as Latched, when the system is disarmed the output operates in Follower mode. In Follower mode, a PIR detector activates the zone output for a period of 5 seconds.

    If a zone output defined as Momentary is activated when the system is disarmed. If the system is armed before the zone output is restored, it will be activated again. This prevents, for example, a window with a magnetic contact being left open when the system is armed.


3.3: General Function Settings

    To program function settings:

    1. Press SELECT to enter programming mode.

    2. Press ADVANCE or BACK until the required general function is shown on the display. 3. Press SELECT; the Function LED is lit and the Register LED indicates the current selection. 4. Press ADVANCE to view the options. 5. Press SELECT to choose the displayed option.


    AR AL AX Armed Input Active Low Active High

    DT DA DD Display Time Always Active During Disarm

    DF D( DP Display Function Continuous When a key is pressed

    ED EA EN Event Display Automatic Scrolling Manual Scrolling

    Choose the activation time for momentary outputs (1-50 seconds) AT Activation Time Default: 1 second

    Choose the supervision time length (1.5 - 9 hours) SU Supervision Time Default: 4 hours

    Table 4: General Functions

    Armed Input This option determines if the Armed Input operates as active low (AL) or active high (AH). Display Time The Display Time option determines when the EL-2541’s display is active. The display can be programmed to be always active (dA) or only when the system is disarmed (dd). Display Function Display Function determines if the display is continuously active (dC) or is activated for 4 minutes when a key is pressed (dP).

    Event Display Events are displayed by the status LEDs and the transmitter display. The event display can either scroll through the events automatically (EA) or manually by pressing ADVANCE (En).

    Activation Time Outputs defined as Momentary are activated for a programmed amount of time. To program this time, use ADVANCE and BACK to choose a time between 1 and 50 seconds. To scroll quickly, hold down the ADVANCE or BACK button.

    Supervision Time The transmitters in the MasterLink range send a supervision signal approximately one hour after the last transmission was sent. The amount of time after which a transmitter is considered as “inactive” is programmable. To program this time, use ADVANCE and BACK to choose a time between 1.5 and 9 hours in ? hour increments. To scroll quickly, hold down the ADVANCE or BACK button.

    3.4: Listing Transmitters

    To list all registered transmitters:

    1. Press SELECT to enter programming mode. 2. Press ADVANCE or BACK until “Lt” appears on the display.

    3. Press SELECT; an automatically scrolling list of the current status of all registered transmitters appears on the display.


3.5 Testing Transmitters

    To test the transmitters: 1. Press SELECT to enter programming mode. 2. Press ADVANCE or BACK until “rt” appears on the display. 3. Press SELECT; a list of all registered transmitters appears on the display. 4. Test each transmitter. Each time a transmission is received, the transmitter is removed from the list. When all transmitters have been tested successfully, “00” appears on the display. 5. Press SELECT to end Test mode.

    3.6 Testing Reception

    To test the quality of the signal received from each transmitter: 1. Press SELECT to enter programming mode. Signal Number 2. Press ADVANCE or BACK until “rt” appears on the Quality of Tones display. 0-1 1 Low Tone 3. Press SELECT; the display appears blank. 2-3 1 High Tone 4. Activate a transmitter. The transmitter’s number and the 4-5 2 High Tones reception quality are displayed (0-9). For example, “05” then “=7” indicates that transmitter number 5 has a signal 6-8 3 High Tones quality of 7. Additionally, a series of tones are sounded to 8-9 4 High Tones indicate the signal quality. A summary of these tones is shown in Table 5. If the signal quality is poor, relocate the transmitter and perform the test again. Table 5: Signal Quality Tones 5. Press SELECT to end Test mode.

4: Operation

    During normal operation, the EL-2541 displays events as they happen. These events are displayed until the condition is restored.


    AdvanceTransmitterTAMPEREDButtonDisplay88StatusADVANCELEDsCondition TRANSMITTERLOW BATTERYDisplay


    Output LEDs




    Figure 4: Operation Display (cover on)


    LED Lit when

    The displayed transmitter has been activated. Activated Event Log Display: This LED also indicates Button 1 on hand-held transmitters.

    The displayed transmitter has been tampered with.

    Event Log Display: This LED also indicates Button 2 on hand-held Tampered transmitters. If the transmitter display reads “00”, the EL-2541’s tamper switch was opened.

    Low Battery The displayed transmitter’s battery is low and needs replacing.

    No transmission has been received from the displayed transmitter for the programmed supervision time. Status If this LED flashes, the displayed transmitter is out of synchronization with the Inactive receiver. In most cases, this indicates that an unauthorized attempt at grabbing the transmission has occurred - i.e. a previous transmission has been recorded and sent by somebody trying to violate the system.

    Event Log Display: If the transmitter display reads “00”, a jamming condition was recorded.

    Trouble A Tamper, Low Battery or Inactive condition exists within the system.

    Jamming The receiver’s frequency is being jammed. System

    Table 6: Status LEDs

    Note: The System LEDs only display current events and are not used in the event log display.

    4.1: Viewing the Log

    The log records alarm events that occurred when the system was armed and system events such as Low Battery and Tamper. When new events have entered the log, the 88decimal point on the right flashes. Note: For hand-held transmitters, the Activated LED indicates Button 1 and the Tampered LED indicates Button 2. Flashes to indicate new log entries To view the log: 1. Press and hold down ADVANCE for a few seconds, until the decimal point stops flashing; the Transmitter Display and the Status LEDs display the first event in the log. 2. Use the ADVANCE button to scroll through the events. After the last event in the log, the decimal point is turned off and a long tone is sounded.

    The event log is deleted the next time the control panel is armed.

5: Technical Specifications

    Model number EL-2541 Outputs 5 Operating Frequency 433.92MHz Output 24V, 1A (relay) or 418MHz FM 24V, 50mA (open collector) Rating

    Number of Transmitters 16 max. Armed Input Low: Short to GND High: Open or +5 to +12Vdc

    Sensitivity -100dBm (nominal) Operating 0 to 60?C Temperature 32? to 140?F

    Operating Voltage 12Vdc ? 15% Dimensions 20 x 15.6 x 3.1cm 7.9” x 6.1” x 1.3” Current consumption 150mA (full load)



    ELECTRONICS LINE (E. L.) Ltd. (hereafter “E.L.”) warrants its products to be free from manufacturing defects in materials and workmanship for 2 years following the date of sale. E.L. will, within said period, at its option and in accordance with the terms of this Limited Warranty, repair or replace any product failing to operate correctly without charge to the original purchaser or user. In case of defect, contact the security professional who installed and maintains your security system. In order to exercise the warranty, the product must be returned by the user or purchaser, shipping costs prepaid and insured to E.L. E.L. will not be responsible for any dismantling or reinstallation changes.

    This warranty shall not apply to any equipment, or any part thereof, which has been repaired by others, improperly installed, improperly used, abused, altered, damaged, subjected to acts of God, or on which any serial numbers have been altered, defaced or removed, or on a product in which the fault does not prevent the use of the product at the installation site, or in the system to which the product is connected.

    There is no express or implied warranty of merchantability or warranty of fitness for a particular purpose. Any action for breach of warranty, including but not limited to any implied warranty of merchantability, must be brought within the six months following the end of the warranty period. In no case shall E.L. be liable to anyone for any consequential or incidental damages for breach of this or any other warranty, express or implied, even if the loss or damage is caused by the E.L.'s own negligence or fault.

    In no event shall E.L. be liable for an amount in excess of E.L.'s original selling price of the product, for any loss or damage, whether direct, indirect, incidental, consequential, or otherwise arising out of any failure of the product. CONSEQUENTLY, E.L. SHALL HAVE NO LIABILITY FOR ANY PERSONAL INJURY, PROPERTY DAMAGE, OR OTHER LOSS BASED ON A CLAIM THE PRODUCT FAILED TO GIVE WARNING. E.L.'s warranty, as herein above set forth, shall not be enlarged, diminished or affected by and no obligation or liability shall arise or grow out of E.L.'s rendering of technical advice or service in connection with Buyers order of the goods furnished hereunder.

    This warranty contains the entire warranty. Additionally, this warranty is in lieu of all other obligations or liabilities on the part of E.L. It is the sole warranty and any prior agreements or representations, whether oral or written, are either merged herein or are expressly canceled. E.L. neither assumes, nor authorizes any other person purporting to act on its behalf to modify, to change, or to assume for it, any other warranty or liability concerning its products.


    Warning: Despite frequent testing, and due to, but not limited to, any or all of the following: criminal tampering, electrical or communications disruption, it is possible for the system to fail to perform as expected. E.L. does not represent that the product/system may not be compromised or circumvented; or that the product or system will prevent any personal injury or property loss by burglary, robbery, fire or otherwise; nor that the product or system will in all cases provide adequate warning or protection. A properly installed and maintained alarm may only reduce risk of burglary, robbery, fire or otherwise but it is not insurance or a guarantee that these events will not occur. Therefore, the installer should in turn advise the consumer to take any and all precautions for his or her safety including, but not limited to, fleeing the premises and calling police or fire department, in order to mitigate the possibilities of harm and/or damage.

    E.L. is not an insurer of either the property or safety of the user's family or employees, and limits its liability for any loss or damage including incidental or consequential damages to E.L.’s original selling price of the product regardless of the cause of such loss or damage. If the user wishes to protect itself to a greater extent, E.L. will, at user's sole cost and expense, obtain an insurance policy to protect the user, supplemental to user's own policy, at a premium to be determined by E.L.'s insurer upon written notice from user by Certified Mail, Return Receipt Requested, to E.L.'s home office address, and upon payment of the annual premium cost by user.

    Some states do not allow limitations on how long an implied warranty lasts or do not allow the exclusion or limitation of incidental or consequential damages, or differentiate in their treatment of limitations of liability for ordinary or gross negligence, so the above limitations or exclusions may not apply to you. This Warranty gives you specific legal rights and you may also have other rights that vary from state to state.

    Electronics Line (E.L.) Ltd.

     Head Office and Manufacturing Electronics Line USA Inc. Electronics Line UK Electronics Line France 58 Amal Street, Kiryat Arieh 1640 Range Street Unit 7, Leviss Trading Estate ZI-61, rue du Marche Rollay POB 3253 Boulder Colorado 80301 Station Road, Stechford 94500 Champigny-Sur-Marne Petah Tikvah 49130 Israel Tel: (800) 683-6835 Birmingham B339AE Tel: (33-1) Tel: (972-3) 921-1110 Fax: (303) 938-8062 Tel: (44-121) 789-8111 Fax: (33-1) Fax: (972-3) 922-0831 Fax: (44-121) 789-8055

    -8- ZI0137B (12/99)

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