JVA ZLM4 User manual

JVA ELECTRIC FENCE SYSTEMS
Installation and User Manual
SECURITY
MONITOR
LM4
Edition 1.5, 2019

State-of-the-art energizer
design IP4 x and ABS plastic
Unique LCD display depicting
fence out and return voltage
JVA Z Energizer Range Concept
Thank you for choosing our product. The JVA brand is a range of electric fencing
products carefully selected from leading manufacturers around the world to
meet the needs of perimeter security.
THE JVA Z RANGE ENERGIZER CONCEPT
The JVA Range of Energizers has been collaboratively designed and manufactured
by an international team with over 35 years of electric fence experience earned
in some of the most testing security environments in the world. It aims to provide
the very best low-cost, high-voltage security energizers in the world. They are
compact, integrated and fully programmable electric fence energizers with built-in
alarm units and LCD out and return voltage display. They also have the option of
being controlled from a remote LCD keypad.
Wall-mountable, robust energizer
housing with easily detachable PCB
chassis for ease of installation and repair
Unique LCD keypad
option depicting fence
and alarm condition
TWO-YEAR WARRANTY
All JVA products carry a 2-year warranty against defective components
and workmanship. The warranty excludes damage caused by acts of
Nature such as lightning or ooding, power supply surges, rough handling,
malicious action or incorrect wiring.
Please retain your invoice as proof of purchase and
ll in the warranty form on page 36.
JVA ELECTRIC FENCE SYSTEMS
NEW JVA ANRDOID KEYPAD
– ONE OF THE MANY
INFORMATION SCREENS;
Details available from
nearest Stax branch.
LCD KEYPAD
VALID FOR
2
YEARS

JVA ELECTRIC FENCE SYSTEMS
1
ContentsContents
CONTENTS
INTRODUCTION ............................................................................................... 3
Features ....................................................................................................... 4
Limitations .................................................................................................... 4
Equipment Requirements and Options ........................................................ 5
Requirements ......................................................................................... 5
Options ................................................................................................... 5
OPERATION ...................................................................................................... 6
Status LED Lights ........................................................................................ 6
LCD display ................................................................................................. 6
ZLM4 LCD Screen ....................................................................................... 7
Control Options ............................................................................................ 8
Control Arbitration ........................................................................................ 8
Magnetic Proximity Switch ........................................................................... 8
Control Inputs .............................................................................................. 8
Keypad Control ............................................................................................ 9
Keypad Versions .......................................................................................... 9
Arming/Disarming the Fence Using the Keypad .......................................... 10
Keypad Status Display ................................................................................. 10
When an Alarm Occurs ................................................................................ 11
To Silence the Alarm .................................................................................... 11
To Disarm ..................................................................................................... 12
To Clear Alarm Memory ............................................................................... 12
Changing your User PIN .............................................................................. 12
Standby Battery ........................................................................................... 12
Internal Beeper/Keypad Beeper .................................................................. 12
ZLM4 Relevant Keypad Codes .................................................................... 13
SPECIFICATIONS ............................................................................................. 14
INSTALLATION ................................................................................................. 15
Installation Steps ......................................................................................... 15
Jumper Conguration .................................................................................. 16
Fence Terminals ........................................................................................... 16
Control, Power and IO Terminals ................................................................. 17

JVA ELECTRIC FENCE SYSTEMS
2
Contents Contents
Wiring Diagrams .......................................................................................... 19
Standalone fence continuity monitor ...................................................... 19
Low Voltage Zoning System ................................................................... 20
Interconnecting Wiring Diagrams ........................................................... 21
Keypad Bus Wiring ................................................................................. 22
Example Group Wiring Ddiagrams ......................................................... 23
PROGRAMMING OPTIONS ............................................................................. 24
Enter Programming Mode ............................................................................ 24
To Exit Programming Mode ......................................................................... 24
Changing the Installer PIN ........................................................................... 24
Changing an Option ..................................................................................... 24
Programmable Options Table ...................................................................... 25
Programming Options in Detail .................................................................... 26
Zone 1 Fence Voltage Alarm Level (01xx#) ........................................... 26
Zone 2 Fence Voltage Alarm Level (02xx#) ........................................... 27
Zone 3 Fence Voltage Alarm Level (03xx#) ........................................... 27
Zone 4 Fence Voltage Alarm Level (04xx#) ........................................... 27
HV Alarm Set (05xx#) ............................................................................. 27
Missed Pulse Count (06xx#) .................................................................. 27
Battery Alarm Voltage (07x#) ................................................................. 28
Siren on Time (08x#) .............................................................................. 28
Siren O󰀨 Time (09x#) ............................................................................. 28
Siren Cycles (10x#) ................................................................................ 29
Input Type (11x#) .................................................................................... 29
Input 2 Function (12x#) .......................................................................... 29
Gate Entry/Exit Delay (13x#) .................................................................. 29
Chime mode (14x#) ................................................................................ 30
Fence Mode (15x#) ................................................................................ 30
Binary Options (16x#) ............................................................................ 30
Auto Re-Arm time (20x#) ....................................................................... 31
Relay Functions ..................................................................................... 31
Group Mode (26x#) ................................................................................ 32
Keypad programming .................................................................................. 33
Changing the Keypad Messages and Address ...................................... 33
Keys Used for Changing Messages: ...................................................... 33
To Exit Keypad Programming ................................................................. 34
Connecting Multiple Keypads to a system ............................................. 34
Notes Regarding Keypad Conguration ................................................. 35
WARRANTY ...................................................................................................... 36

JVA ELECTRIC FENCE SYSTEMS
3
Introduction
INTRODUCTION
The ZLM4 is a 4-zone, low voltage, electric fence monitor. The ZLM4 may be used by
itself or in conjunction with a number of high voltage security electric fence energizers.
The ZLM4 monitors up to 4 loops of fence wire, each up to several hundred meters
long, to detect someone tampering with the fence by cutting or shorting the wires.
When used in conjunction with a high voltage electric fence energizer, the ZLM4 is
wired to the non-energized wires on the fence. In this way, the ZML4 can be used
to split one high voltage zone into up to 4 low voltage monitored zones for improved
targeting of the response to potential security breaches.
The ZLM4 is compatible with the JVA Z series energizers. It may be connected via
a keypad bus network with other Z series devices to enable the whole group to be
controlled via one keypad, or linked to a PC running JVA Perimeter Patrol software.
The ZLM4 monitors a low voltage loop using intrinsically safe, isolated ELV DC. It
employs a continuity check for detecting open circuits, DC voltage level sensing
to detect a short to ground
and pulse voltage sensing
to detect a short to a line
powered by a high voltage
fence energizer.
The advanced features of this
device allow the performance
to be tuned to the fence and
to the particular requirements
of the site. This is done
by adjusting the device’s
programmable options.
The ZLM4 will report an alarm
on: detecting a low voltage
loop cut (open circuit); shorted
to ground (short); when high
voltage from an electric fence
energizer wire is shorted to
the monitored low voltage
loop; or when two low voltage
loops short to one another
(cross couple).
An electric fence system
which meets current safety
regulations

JVA ELECTRIC FENCE SYSTEMS
4
Introduction
Features
• Monitors for continuity using safe 50V DC pulses
• Can be used to split a single security electric fence zone into up-to 4 low
voltage zones
• Can detect a short, cut or if the monitored wire is touching a high voltage wire
• Optional LCD display, displays which zone is in alarm and other information
• Controlled and programmed via a JVA keypad with similar codes to the JVA
Z series
• Compatible with all JVA Z series network adaptors including:
– USB
– Able to be monitored via PC (using Perimeter Patrol software version 5.3 or
above)
– RS485
– TCP/IP *not all versions
– GSM *not all versions
• Able to be integrated into third party access control and security information
management systems at a variety of levels
• Enables the construction of systems from economical key switch operation to
complex PC controlled applications
• Built into the wall mountable Z series energizer enclosure
• Runs from 16Vac or 12V DC external source
• Built-in battery charger for optional 7aH back up battery
• Siren and Strobe switched 12V DC outputs for standalone operation
• 2 control inputs and 4 form C relays with many programmable functions for low
level integration with other systems
• Fence connections are fully isolated from power and IO as per relevant parts of
ICE60335.2.76
Limitations
• Any energizer used with the ZLM4 must comply with the IEC60335.2.76
electrical safety standard.
• Energizers with a negative voltage pulse may not be suitable.
• The energizer output pulse energy must not exceed 18 Joules.
• The maximum series resistance of the fence wire loop which can be accurately
monitored is 5000 Ohms.
• Not all versions of the PAE212, PAE224 or PAE218 GSM module recognize the
ZLM4. For compatibility please check with your distributor or JVA.
• The JVA LCD keypad (PTE0210) requires version 2.12 or later rmware to
operate with a ZLM4. The keypad rmware can be viewed at power up or by
pressing *9# on the keypad.
• Perimeter Patrol version 5.2.2 or later is required to operate with a ZLM4.

JVA ELECTRIC FENCE SYSTEMS
5
Introduction
Equipment Requirements and Options
Requirements
• 12V rechargeable backup battery or external 12V source
• 16Vac or 24Vdc power adaptor if using internal rechargeable battery
Options
• 12V Siren and strobe light
• LCD keypad (PTE0210). Note 1,2
• Windows PC
– Windows 7 or later
– PAE223 or PAE100 serial adaptor AND USB to serial adaptor
– or PAE212 TCP/IP adaptor
– Perimeter Patrol PC application
NOTES:
1. While the keypad is not essential for normal operation, it is required to adjust
the programmable options.
2. Up to 3 keypads may be connected in parallel on a ZLM4. Each keypad must
have a unique ID setting.
3. The ZLM4 contains patent pending technology. Contact JVA SA for more
information.
For more information please see www.jva-fence.com.au.

JVA ELECTRIC FENCE SYSTEMS
6
Operation
OPERATION
Status LED Lights
The status LED’s on the front of the ZLM4 allow the user to ascertain quickly the
current status of the unit and if any action needs to be taken. Below is a brief
description of each LED (top to bottom) and the information it conveys.
Power – On (Green) whenever the unit has power
Armed –On (Red) when the unit is armed; ashes if any zone is bypassed
Fence –On (Red) when there is a fence alarm (any zone); ashes if any
zone has a low voltage
Gate –On (Red) when there is a gate alarm; ashes if the gate is open
Status –Flashes (Red) an error code for service errors; the LCD may also
show an error message
Status LED
Number of
Flashes
Interpretation Corrective \Action
1 Not used
2 16Vac Mains fail Restore mains power
3Low battery, bad battery Charge or replace battery
4 PCB service fault Return to repair/service centre
NOTE: A Z slave will show this error if
disconnected from the Master
LCD Display
The Optional LCD display shows
the status of the ZLM4 at all times.

JVA ELECTRIC FENCE SYSTEMS
7
Operation
ZLM4 LCD Screen
The ZLM4 will show the status on the optional LCD display.
When disarmed:
JVA ZLM4
Disarmed
1: 35V 2: 37V
2: 40V 4: 35V
1: Alarm V 1
Value: 20
JVA ZLM4
Disarmed
Battery 11.5V
AC Fail
Alarm: Zone 1
Gnd Short
ZLM4 Armed
All clear
Alarm: Zone 1
Gnd Short
Alarm: Zone 2
Fence Cut
Battery 14.5V
AC On
Alarm: Zone 3
HV Short
While armed, the LCD display cycles the following information:
The display also shows the programmable options and values when in programming
mode.
When the ZLM4 is disarmed, all current alarms are shown.
Various ‘troubles’ are also displayed, such as AC fail or low battery.
Pressing # on the keypad will freeze the current information displayed on the LCD
screen for approximately 10 pulses. Pressing the # key again will cycle the display
to the next information screen.
When an alarm occurs, the screen will detail the type of alarm and the sector if
applicable.
ALARM
Gate
ALARM
Energizer Fail

JVA ELECTRIC FENCE SYSTEMS
8
Operation
Control Options
The ZLM4 may be armed and disarmed (controlled) using the following optional
extras:
• Magnetic proximity fob
• Key switch or remote switch connected to the control input (IN1)
• Remote control radio receiver connected to IN1
• Z Series Keypad (LCD or Touch)
• JVA Webserver *not all versions
• JVA GSM module *not all versions
• Windows PC running JVA Perimeter Patrol software
• Low level interface (wired to control inputs and relay outputs) from a third party
security alarm panel or Physical Security Information System (PSIM).
NOTE: More than 1 method may be used in the one installation.
Control Arbitration
If an installation contains two ways to control the ZLM4, then the most recent control
signal will determine the Armed/Disarmed state. For example if the ZLM4 is armed
via the keypad and then disarmed at the control input (IN1), it will disarm.
The higher level control methods such as the Webserver, GSM and PC control
software may override the Control Input and Keypad’s methods, depending on the
options used. If you need to make sure that the fence is disarmed (for maintenance),
then using the key switch or keypad alone may not guarantee that the fence will
remain disarmed.
Magnetic Proximity Switch (Optional)
The ZLM4 may be controlled using the JVA Permanent Magnet Key Ring Fob. To
operate, the fob must be held against the control zone marked on the front label. The
energizer will beep and toggle from armed to disarmed or visa versa after the fob is
held in position for 2 seconds. The Magnetic Proximity Receiver should be disabled
in the programmable options if it is not being used.
Control Inputs
The ZLM4 may have a single key switch mounted on the right hand side of the
cabinet which may be used to arm and disarm the security electric fence to which it is
connected. This switch is useful for the simplest implementations where no keypad
or PC control program is used. It may be disabled by the installer by removing the
lead from socket J2.
When switched on via the key switch (or a switch connected to IN1) the ZLM4 will
power up the energizer to which it is coupled and begin monitoring the fence.

JVA ELECTRIC FENCE SYSTEMS
9
Operation
The screen will change to display the Armed status and any faults or alarms. If there
is a fence fault the ZLM4 will go into alarm, the internal beeper will sound (if it has not
been inhibited) and any siren and strobe connected to the ZLM4 will be turned on.
The zone in which the fault has occurred will be displayed.
Switching the key switch o󰀨 will disarm the ZLM4, though it will continue to display
the last alarm and zone.
Keypad Control
The ZLM4 uses the same keypad as the
JVA Z series energizers and is controlled
using similar keypad codes.
The PTE0210 keypad (Version 2.00 and
higher) will display the Fence voltages plus
the Zone if in fence alarm.
Alarms and troubles will also be displayed.
The keypad has two LED lights:
Power On with Mains power, O󰀨 with Main fail, ashes on low battery
Armed On when the energizer is armed, ashes when in low power mode
All other indications are given via messages on the keypad LCD screen.
If the keypad shows Alarm or Trouble, pressing [#] will reveal more information about
the problem.
NOTE: There is no panic function currently implemented.
Keypad Versions
The current version keypad is a PTE0210 with code version 2.00. Older versions
have limitations.
The keypad version can be seen by pressing *9#.
PTE0200 Shows ALPHA KEYPAD Revision 7.0
• Cannot show Zone (fence) voltages
• Shows only Zone alarms 1-8
• Does not show Gate alarms

JVA ELECTRIC FENCE SYSTEMS
10
Operation
PTE0210 Shows PTE0210 and the code version.
• Can show fence voltages
• Will respond to *68# to analyse the ‘group’.
• Version 1.21 and below
– Older version, can be upgraded to V2.00 rmware
– Cannot detect or operate with the ZLM4
• Version 2.20 and higher
– ZLM4 is supported, zones are displayed
PTE0230 Android Based Touch Screen Keypad
• Provides the most advanced monitoring and control of all Z range
devices
• All functions are available
• Refer to the inbuilt help; the rest of this chapter refers to the simpler
LCD keypads above.
Arming/Disarming the Fence Using the Keypad
Enter your User PIN (Personal Identication Number: four digits long) and push the
# key. Make sure the red ARM light comes on and the keypad beeps twice to conrm
that the system is armed.
The fence will power up and if all is well (no faults) the system will be ready to deter
and detect.
To disarm the system enter your User PIN and press #.
NOTE: If there is an alarm sounding you will need to enter your PIN twice: once to
silence the alarm and once more to disarm.
See also the section on Programming Keypads (page 33).
Keypad Status Display
In normal operation the keypad shows a continuous summary of the system status.
For example, if the system is disarmed the keypad will display Ready to Arm.
If the system is armed then the keypad will display the voltages for each zone in the
system.
Since there can be many things to display, the keypad automatically ‘scrolls’ through
all relevant detail. Each screen is shown for about 2 seconds. If you wish to hold the
display at a particular point, simply press the [#] key. The auto scrolling will stop for
about 20 seconds.
Pressing the [#] key again will advance the display one step.
If a new ‘trouble’ (AC fail, low battery etc.) or alarm occurs, the keypad screen will
jump to the relevant zone, the keypad will beep (unless toggled o󰀨) and auto scrolling
will cease for about 3 minutes.

JVA ELECTRIC FENCE SYSTEMS
11
Operation
When an Alarm Occurs
An Alarm will occur if there is a fault on the fence caused by a short or an open circuit
(cut), while the system is armed. The siren will sound and the strobe will light. The
internal beeper and the keypad may also sound, depending on how your system is
congured.
There are 3 ways the ZLM4 can detect a fence fault:
1) A low voltage circuit is cut (open circuit)
2) A low voltage circuit is shorted to ground (LV short)
3) A high voltage wire shorts to a low voltage wire (HV Short).
The siren and keypad beeper will sound and any relays assigned to this fence alarm
will turn on.
An alarm will also sound if Control Input 2 is assigned to the GATE function and the
gate input is opened for longer than the Gate delay time.
After the siren has cycled on and o󰀨 according to the times and numbers set
in options, the siren will stop sounding. The on and o󰀨 timing can be set in the
programmable options. The Strobe will remain on. After a further delay (Auto Rearm
Time) the siren will again respond to the next alarm condition with a new set of on/o󰀨
cycles.
If the alarm condition is removed, the siren will stop after the end of the current On
Time (Siren On Time).
If the siren is silenced (by entering PIN#), the siren will enter the next O Time
Cycle (Siren O󰀨 Time). If the alarm condition is still present (voltage is low) the siren
will sound again after the preset O Time. If the alarm condition is not present, the
energizer is instantly rearmed, irrespective of the Auto-Rearm setting.
To Silence the Alarm
If there is no keypad attached, simply disarm the ZLM4 using the key switch or
magnetic fob, if tted.
Using a keypad, enter your User PIN and press #. This will silence the alarm but not
disarm the system; the armed light will still be on. The system will be ready for the
next alarm.
NOTES:
1. This silence function will not operate if the ZLM4 is part of a Z series networked
group.
2. The last alarmed Zone will still be displayed on the front panel LCD and the
keypad.
3. The siren and strobe are ready to respond again if triggered.

JVA ELECTRIC FENCE SYSTEMS
12
Operation
To Disarm
If there is no keypad attached, simply disarm the ZLM4 using the key switch or
magnetic fob, if tted.
Using a keypad, disarm the system by entering your User PIN and press #.
The Fence or Gate light on the ZLM4 will remain on to show the Alarm Memory.
This can be cleared by entering the Clear Alarm memory command *1#. The alarm
memory will also be cleared when the ZLM4 next arms.
To Clear Alarm Memory
After an alarm occurs, pressing *1#, will clear the Alarm Memory. If the problem still
exists the unit will alarm again.
Changing your User PIN
Enter the current 4 digit PIN and press *0#. This enters User Programming mode.
Enter your new PIN (must be 4 digits) and then #.
Press *# to exit User Programming mode.
Make sure your new PIN works by using it to arm the energizer.
The default User PIN is 1234.
For example, the following keypad sequence will change the User PIN to 8015 from
the default PIN: 1 2 3 4 * 0 # 8 0 1 5 # * #
Standby Battery
Should there be a loss of mains power, the Power light on the keypad will go o󰀨.
The status LED on the ZLM4 front panel will ash twice and the keypad will show
TROUBLE – AC FAIL.
If the loss of power is prolonged, the battery may become discharged and ine󰀨ective.
The Power light on the keypad will start to ash indicating that the battery charge is
low. The status LED on the ZLM4 front panel will ash three times and the keypad
will show TROUBLE: LOW BAT.
If the standby battery requires replacement, the Status LED on the energizer will
ash 3 times even after the mains power has been restored.
Internal Beeper/Keypad Beeper
Depending on the Chime Mode setting, the internal beeper and keypad beeper will
sound when there is a fence alarm, a gate alarm, a general alarm or a door chime. On
at battery the keypad will always beep 4 times before the energizer automatically
enters low power mode to preserve the battery. On AC fail it will not beep.
NOTE:The Internal beeper also beeps at power up.

JVA ELECTRIC FENCE SYSTEMS
13
Operation
ZLM4 Relevant Keypad Codes
Function Key Sequence
Arm/Disarm [User PIN][#]
Silence an alarm (Single zone system only) [User PIN][#]
Start programming the Z series energizer [Installer PIN][*] [0] [#]
Start programming the keypad [Installer PIN][*] [0] [1] [#]
Exit programming (any mode) [*] [#]
Change a user PIN, 4 Digits [User PIN][*]0[#][New PIN]#
Change the installer PIN, 5 Digits [0] [0] [New Installer PIN][#]
Disarm All Zones [User PIN][*][2][0][#]
Arm gate circuits only [User PIN][*][4][#]
To change the keypad messages to English [*][3][1][#]
To change the keypad messages to Spanish [*][3][2][#] (not well supported yet)
Keypad Audible Feedback On/O󰀨 [*] [5] [1] [#]
Keypad Chimes On/O󰀨 [*] [5] [3] [#]
Keypad Error Tones On/O󰀨 [*] [5] [4] [#]
Local Keypad Alarms On/O󰀨 [*] [5] [5] [#]
Backlight mode On/On with keys/O󰀨 [*] [8] [#]
Display keypad model [*] [9] [#]
Re-analyse the group [*][6][8][#]
Reset and display rmware version number [User PIN][*][6][8][#]
Reset and return to factory defaults [Installer PIN][*] [6] [8] [#]
Siren Test [*] [6] [3] [#]
Battery Test [*] [6] [4] [#]
Clear alarm memory [*] [1] [#]

JVA ELECTRIC FENCE SYSTEMS
14
Specications
SPECIFICATIONS
The specications table below outlines the power consumption of the ZLM4 and the
acceptable voltage and current ranges for di󰀨erent inputs and outputs.
Internal battery charger oat voltage 14.2Vdc
Internal battery charger charging current 1200mA
Power consumption of ZLM4 (Note 1) 130mA at 12.5
Vdc
Maximum AC input voltage when internal battery charger is
supplying 580mA
19Vac
Battery backup time (without keypad) 24 Hours
Maximum voltage on In1, SW2 and Gate inputs (Note 2) 5Vdc
Maximum power available from Siren and Strobe outputs
(Note 3)
35 Watts
(2.5A at 13.5V)
Maximum energizer Joules (Note 4) 18J
Maximum low voltage loop impedance 5000 Ohm
Maximum loop capacitance to ground 0.2uF
NOTES:
1. This is the power consumption when none of the powered outputs are active
and the keypad is not connected. The rated power consumption may be lower
depending on relay conguration and alarm states.
2. The control inputs are supplied with 5V from a weak pull up circuit so that they
can be controlled by using dry contacts from a relay or switch. A device with ‘open
collector’ outputs may be used. They can also be driven from a 5V switched
output, as long as the driving circuit actively pulls down to ground when o󰀨.
3. This is the limit for the combination of the loads on both the Siren and Strobe
outputs.
4. This is the maximum rating of the energizer if the ZLM4 is used on the same
fence as a high voltage electric fence energizer. Beyond this rating the ZLM4
loop circuit protection MOV’s may fail if high voltage wires are shorted to the
ZLM4 loop wires.

JVA ELECTRIC FENCE SYSTEMS
15
Installation
INSTALLATION
It is recommended that all installations are performed by qualied technicians.
Installation Steps
1. Read the entire ZLM4 and Energizer manuals rst!
2. Design and build the fence. (Beyond the scope of this manual.) Ask your
distributor for help if required.
3. Decide where the energizer, ZLM4 and keypad are to be mounted. If on
an external wall it should be housed within a weatherproof equipment box,
shaded from direct sun.
4. Remove the lid of the ZLM4 using a 5mm Hex key.
5. Remove the ZLM4 PCB chassis from the housing by removing the two screws
at the top corners.
6. Mount the housing by using 4 screws through the rear of the box. The box
must be mounted to a wall in such a way that all of the 4 holes in the rear of
the case are against the mounting surface.
7. Replace the PCB chassis.
8. If using a keypad, remove the rear housing of the keypad and x it to the wall.
9. Wire the low voltage cables to the PCB terminals.
10. Wire the high voltage cable to the PCB terminals.
11. Set the Jumpers as required.
12. Fit the battery leads to the battery. The Error LED should be blinking twice to
show mains fail.
13. Replace the front cover (lid).
14. Turn AC power on.
15. Arm the ZLM4 and switch on the energizer if used. The LCD display will now
show the zone voltages.
16. Find and remove any faults on the fence.
17. Test that a short in any zone puts the ZLM4 into alarm and shows the correct
Zone.

JVA ELECTRIC FENCE SYSTEMS
16
Installation
Jumper Function Purpose
J3 Inhibit Mains fail error J3 is tted to inhibit Mains fail errors if the
intention is to operate the energizer on DC
only (as in solar power systems).
J4 Factory default jumper
O󰀨 to return
programmable options
to factory defaults on
power up
If the energizer needs to be defaulted to
factory settings, remove all power (AC and
battery) and remove the J4 jumper. Reapply
the mains and the battery power. Reapply
the J4 jumper and the energizer will be
reset to default settings.
J8 Inhibit internal Beeper Fitted to inhibit the internal beeper,
irrespective of any option setting
Jumper Conguration
The ZLM4 is equipped with three jumpers, two of which (J3 and J4) operate in an
identical fashion to those on other Z-range energizers. The third jumper, J8 will
suppress the beeper on the ZLM4 when tted.
These are located in the top left corner of the PCB.
Fence Terminals

JVA ELECTRIC FENCE SYSTEMS
17
Installation
Control, Power and IO Terminals
Description of fence terminals (left to right in the illustration on the previous
page)
Loop 1 Connect to zone 1 fence wires
Loop 2 Connect to zone 2 fence wires
Loop 3 Connect to zone 3 fence wires
Loop 4 Connect to zone 4 fence wires
Ground Connect to main fence earth stakes.

JVA ELECTRIC FENCE SYSTEMS
18
Installation
Label Type Description
IN1 2 Way Energizer control input (dry contact)
Defaults to normally open
Can be used for a remote switch or a radio receiver
The receiver may be powered from the keypad +12V terminal.
Gate 2 Way Energizer control input
Defaults to normally open low power but may also be
assigned to gate input
When the unit is armed and the gate is opened, it will trigger
the gate alarm.
Keypad 3 Way Supplies power and data line for an external keypad
The +12V source on these terminals is protected by 1A self-
resetting fuse.
Siren 2 Way Switched 12 volt output
Low side switched
35W max (including strobe)
A bu󰀨er relay should be used when connecting these outputs
to an alarm panel.
Strobe 2 Way Switched 12 volt output
Low side switched
35W max (including siren)
A bu󰀨er relay should be used when connecting these outputs
to an alarm panel.
AC IN 3 Way 16Vac power input
Fused via F3 3A self resetting fuse
The Earth terminal may be required to be connected to mains
earth in some countries: consult your local wiring guidelines.
Relay 3 3 Way May be set to any of 16 alarm conditions
Defaults to zone 1 alarm
Relay 4 3 Way May be set to any of 16 alarm conditions
Defaults to zone 2 alarm
Relay 5 3 Way May be set to any of 16 alarm conditions
Defaults to zone 3 alarm
Relay 6 3 Way May be set to any of 16 alarm conditions
Defaults to zone 4 alarm
Description of control, power and IO (Input, Output) terminals