Fire-Lite LDM-32F User Manual

PN 50055:C0 ECN 01-155

Lamp Driver Module

LDM-32F

Instruction Manual

Document 50055 03/20/2001 Rev:

Fire Alarm System Limitations

An automatic fire alarm system–typically made up of

smoke detectors, heat detectors, manual pull stations, audible warning devices, and a fire alarm control with remote notification capability–can provide early warning of a developing fire. Such a system, however, does not assure protection against property damage or loss of life resulting from a fire.

The Manufacturer recommends that smoke and/or heat detectors be located throughout a protected premise following the recommendations of the current edition of the National Fire Protection Association Standard 72 (NFPA 72), manufacturer's recommendations, State and local codes, and the recommendations contained in the Guide for Proper Use of System Smoke Detectors, which is made available at no charge to all installing dealers. A study by the Federal Emergency Management Agency (an agency of the United States government) indicated that smoke detectors may not go off in as many as 35% of all fires. While fire alarm systems are designed to provide early warning against fire, they do not guarantee warning or protection against fire. A fire alarm system may not provide timely or adequate warning, or simply may not function, for a variety of reasons:

Smoke detectors may not sense fire where smoke cannot reach the detectors such as in chimneys, in or behind walls, on roofs, or on the other side of closed doors. Smoke detectors also may not sense a fire on another level or floor of a building. A second-floor detector, for example, may not sense a first-floor or basement fire.

Particles of combustion or "smoke" from a developing fire may not reach the sensing chambers of smoke detectors because:

• Barriers such as closed or partially closed doors, walls, or chimneys may inhibit particle or smoke flow.

• Smoke particles may become "cold," stratify, and not reach the ceiling or upper walls where detectors are located.

• Smoke particles may be blown away from detectors by air outlets.

• Smoke detectors may be drawn into air returns before reaching the detector.

The amount of "smoke" present may be insufficient to alarm smoke detectors. Smoke detectors are designed to alarm at various levels of smoke density. If such density levels are not created by a developing fire at the location of detectors, the detectors will not go into alarm.

Smoke detectors, even when working properly, have sensing limitations. Detectors that have photoelectronic sensing chambers tend to detect smoldering fires better than flaming fires, which have little visible smoke. Detectors that have ionizing-type sensing chambers tend to detect fast-flaming fires better than smoldering fires. Because fires develop in different ways and are often unpredictable in their growth, neither type of detector is necessarily best and a given type of detector may not provide adequate warning of a fire.

Smoke detectors cannot be expected to provide adequate warning of fires caused by arson, children playing with matches (especially in bedrooms), smoking in bed, and violent explosions (caused by escaping gas, improper storage of flammable materials, etc.).

While a fire alarm system may lower insurance rates, it is not a substitute for fire insurance!

Heat detectors do not sense particles of combustion and alarm only when heat on their sensors increases at a predetermined rate or reaches a predetermined level. Rate-of-rise heat detectors may be subject to reduced sensitivity over time. For this reason, the rate-of-rise feature of each detector should be tested at least once per year by a qualified fire protection specialist.

detectors are designed to protect property, not life.

IMPORTANT!

the same room as the control panel and in rooms used by the system for the connection of alarm transmission

Smoke detectors must be installed in

wiring, communications, signaling, and/or power.

detectors are not so located, a developing fire may damage the alarm system, crippling its ability to report a fire.

Audible warning devices such as bells may not alert people if these devices are located on the other side of closed or partly open doors or are located on another floor of a building. Any warning device may fail to alert people with a disability or those who have recently consumed drugs, alcohol or medication. Please note that:

• Strobes can, under certain circumstances, cause seizures in people with conditions such as epilepsy.

• Studies have shown that certain people, even when they hear a fire alarm signal, do not respond or comprehend the meaning of the signal. It is the property owner's responsibility to conduct fire drills and other training exercise to make people aware of fire alarm signals and instruct them on the proper reaction to alarm signals.

• In rare instances, the sounding of a warning device can cause temporary or permanent hearing loss.

A fire alarm system will not operate without any electrical power. If AC power fails, the system will operate from standby batteries only for a specified time and only if the batteries have been properly maintained and replaced regularly.

Equipment used in the system may not be technically compatible with the control. It is essential to use only equipment listed for service with your control panel.

Telephone lines needed to transmit alarm signals from a premise to a central monitoring station may be out of service or temporarily disabled. For added protection against telephone line failure, backup radio transmission systems are recommended.

The most common cause of fire alarm malfunction is inadequate maintenance. To keep the entire fire alarm system in excellent working order, ongoing maintenance is required per the manufacturer's recommendations, and UL and NFPA standards. At a minimum, the requirements of Chapter 7 of NFPA 72 shall be followed. Environments with large amounts of dust, dirt or high air velocity require more frequent maintenance. A maintenance agreement should be arranged through the local manufacturer's representative. Maintenance should be scheduled monthly or as required by National and/or local fire codes and should be performed by authorized professional fire alarm installers only. Adequate written records of all inspections should be kept.

Heat

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Installation Precautions

WARNING -

connected to the fire alarm control panel.

sources of power before servicing. Control unit and associated equipment may be damaged by removing and/or inserting cards, modules, or interconnecting cables while the unit is energized. Do not attempt to install, service, or operate this unit until this manual is read and understood.

CAUTION -

Changes.

product must be tested in accordance with NFPA 72 Chapter 7 after any programming operation or change in site-specific software. Reacceptance testing is required after any change, addition or deletion of system components, or after any modification, repair or adjustment to system hardware or wiring.

All components, circuits, system operations, or software functions known to be affected by a change must be 100% tested. In addition, to ensure that other operations are not inadvertently affected, at least 10% of initiating devices that are not directly affected by the change, up to a maximum of 50 devices, must also be tested and proper system operation verified.

This system meets NFPA requirements for operation at 0-49° C/32-120° F RH (non-condensing) at 30° useful life of the system's standby batteries and the electronic components may be adversely affected by extreme temperature ranges and humidity. Therefore, it is recommended that this system and all peripherals be installed in an environment with a nominal room temperature of 15-27° C/60-80° F.

Verify that wire sizes are adequate for all initiating and indicating device loops. Most devices cannot tolerate more than a 10% I.R. drop from the specified device voltage.

Several different sources of power can be

Disconnect all

System Reacceptance Test after Software

To ensure proper system operation, this

and at a relative humidity of 85%

C/86° F. However, the

Adherence to the following will aid in problem-free installation with long-term reliability:

Like all solid state electronic devices, this system may operate erratically or can be damaged when subjected to lightning-induced transients. Although no system is completely immune from lightning transients and interferences, proper grounding will reduce susceptibility.

Overhead or outside aerial wiring is not recommended, due to an increased susceptibility to nearby lightning

Consult with the Technical Services Department

strikes.

if any problems are anticipated or encountered.

Disconnect AC power and batteries prior to removing or inserting circuit boards. Failure to do so can damage circuits.

Remove all electronic assemblies prior to any drilling, filing, reaming, or punching of the enclosure. When possible, make all cable entries from the sides or rear. Before making modifications, verify that they will not interfere with battery, transformer, and printed circuit board location.

Do not tighten screw terminals more than 9 in-lbs. Over-tightening may damage threads, resulting in reduced terminal contact pressure and difficulty with screw terminal removal.

Though designed to last many years, system components can fail at any time. This system contains staticsensitive components. Always ground yourself with a proper wrist strap before handling any circuits so that static charges are removed from the body. Use staticsuppressive packaging to protect electronic assemblies removed from the unit.

Follow the instructions in the installation, operating, and programming manuals. These instructions must be followed to avoid damage to the control panel and associated equipment. FACP operation and reliability depend upon proper installation by authorized personnel.

FCC Warning

WARNING: This equipment generates, uses, and

can radiate radio frequency energy and if not installed and used in accordance with the instruction manual, may cause interference to radio communications. It has been tested and found to comply with the limits for class A computing device pursuant to Subpart B of Part 15 of FCC Rules, which is designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user will be required to correct the interference at his own expense.

Canadian Requirements

This digital apparatus does not exceed the Class A limits for radiation noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.

Le present appareil numerique n'emet pas de bruits radioelectriques depassant les limites applicables aux appareils numeriques de la classe A prescrites dans le Reglement sur le brouillage radioelectrique edicte par le ministere des Communications du Canada.

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LDM-32F PN 50055:C 03/20/01

Table of Contents

1. Introduction

General................................................................................................... 9

Features ............................................................................................... 10

LDM-32F..........................................................................................10

LDM-E32F .......................................................................................11

Connectors........................................................................................ 12

J1 - Switch Matrix........................................................................12

J2 - Ribbon Cable Connection to J3.............................................12

J3 - Ribbon Cable Connection from J2........................................12

J4 - Key Switch Input...................................................................12

J5, J6, J7 and J8 - Lamp/LED Driver Outputs ............................. 12

J9 - 24 VDC Lamp Power/System Trouble .................................12

J10 - Relay Expander ...................................................................12

J11 - 5 VDC Lamp Power............................................................13

Switches............................................................................................13

SW1 and SW2 - Address Switches..............................................13

SW3 - Function DIP Switch.........................................................13

SW4 - Alarm/Trouble Mode Switch............................................13

Terminal Blocks ...............................................................................14

TB1 - 24 VDC Power, Earth Ground and Supervision................ 14

TB2- EIA-485 In/Out...................................................................14

Cables ...............................................................................................14

Expander Ribbon Cable ............................................................... 14

The LDM-CBL24 and LDM-CBL48...........................................14

Key-lock Control Switch Security ...............................................15

Related Documentation......................................................................15

2. Installation

External Cabinets ............................................................................... 17

CHS-4L Chassis ..................................................................................17

Wiring the Power Terminal Block ....................................................19

24 VDC Power and Earth Ground....................................................19

Supervision Input ............................................................................. 20

Wiring the EIA-485 Terminal Block.................................................20

Wiring Specifications....................................................................... 20

Wire Chart ..................................................................................21

EIA-485 Shield in Conduit ..........................................................21

EIA-485 Shield Not in Conduit ...................................................21

EIA-485 - TB2 Terminals ................................................................22

Wiring for Lamp/LED .......................................................................23

Wiring the Control Switch.................................................................24

Table of Contents

Configuring the LDMs .......................................................................25

Address Switches - SW1 and SW2...................................................25

Function DIP Switch - SW3 .............................................................25

Switch Settings.............................................................................26

Mode Switch - SW4 .........................................................................26

3. Operation

Lamp Test/Acknowledge ....................................................................27

On Line LED .......................................................................................27

Graphic Annunciator Lamps/LEDs..................................................27

4. LDM Communications

Receive Only LDM-32Fs ....................................................................29

Receive/Transmit LDM-32F ..............................................................29

5. Electrical Ratings and Current Calculations

Lamp Driver Electrical Ratings ........................................................31

Supervision of LDM points ................................................................31

Calculating Standby and Alarm Currents .......................................32

Appendix A: Sensiscan 2000

Capabilities ..........................................................................................33

Trouble Indication ..............................................................................33

Programming and Testing the LDM-32F.........................................33

Power Supply Connection ..................................................................34

MPS-24AF Main Power Supply.......................................................34

MPS-24BF Main Power Supply.......................................................34

EIA-485 Connection ...........................................................................34

Lamp/LED Driver Operation ............................................................35

Alarm Only Operation ......................................................................37

Alarm Only Operation with 8-Point Shift ........................................37

Alarm/Trouble Operation .................................................................38

Alarm/Trouble Operation with 8-Point Shift....................................38

Control Switch Operation ..................................................................40

Appendix B: MS-9200

Capabilities ..........................................................................................41

Trouble Indication ..............................................................................41

Programming and Testing the LDM-32F.........................................41

Power and EIA-485 Connections.......................................................41

Configuration ......................................................................................42

Alarm Only Annunciation of Zones.................................................42

Alarm Only Annunciation of Zones - With 8-Point Shift................42

Alarm/Trouble Annunciation of Zones ............................................43

Alarm/Trouble Annunciation of Zones - With 8-Point Shift ...........43

Alarm Only Annunciation of Points.................................................45

Detectors.......................................................................................45

Modules........................................................................................45

Table of Contents

Alarm Only Annunciation of Points - With 8-Point shift ................46

Detectors ......................................................................................46

Modules........................................................................................46

Alarm /Trouble Annunciation of Points........................................... 47

Detectors ......................................................................................47

Modules........................................................................................47

Alarm /Trouble Annunciation of Points - With 8-Point Shift.......... 48

Detectors ......................................................................................48

Modules........................................................................................48

Configuration Diagram.....................................................................49

Appendix C: MS-9600

Capabilities..........................................................................................51

Trouble Indication..............................................................................51

Programming and Testing the LDM-32F.........................................51

Power and EIA-485 Connections ......................................................51

Configuration ......................................................................................52

Setting Rotary Switches ...................................................................52

Alarm Only Annunciation of Zones.................................................53

Alarm Only Annunciation of Zones - With 8-Point Shift................ 53

Alarm/Trouble Annunciation of Zones............................................54

Alarm/Trouble Annunciation of Zones - With 8-Point Shift ........... 54

Alarm Only Annunciation of Points.................................................56

Alarm/Trouble Annunciation of Points............................................56

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LDM-32F PN 50055:C 03/20/01

1. Introduction

General

The LDM Series Lamp Driver Modules, which consist of the LDM-32F master and LDM-E32F expander modules, are used to provide an interface to a custom graphic annunciator. The master module provides power and control for a maximum of three expander modules. Both these modules have output connectors which are used to drive lamps or LEDs and input connectors which are used for remote switch functions.

The Lamp Driver Modules may be connected to an MS-9200, MS-9600 or Sensiscan 2000 fire alarm control panel (FACP) to provide remote annunciation of the following:

• General system status:

General alarm Municipal tie status

General trouble System silence

General supervisory Alarm relay status

NAC output status

• Alarm and trouble status of zones or individual points

• Alarm only status of zones or individual points

The modules also interface to remote control switches which may be used to provide:

•System reset

•System silence

• System acknowledge

• Temporary activation of NAC outputs

• Alarm relay activation

• Other control functions

The modules interface to the host fire alarm control panel via an EIA-485 communications bus circuit. A maximum of 32 LDM-32Fs may be connected to the power-limited EIA-485 bus, but if other types of devices are also connected to the EIA-485 bus, the maximum number of LDM-32Fs must be reduced by the total of such devices. The EIA-485 wiring distance must not exceed 6000 feet and cannot be T-tapped. Multiple LDM-32Fs may be used to annunciate duplicate information.

Power to the LDM-32Fs is typically provided by the host FACP and must be power-limited, regulated 24 VDC. An external UL listed battery backed power supply may also be used.

Note: Careful consideration must be given to system battery calculations when power for the LDM modules and lamps or LEDs is provided by the host FACP. Refer to the specifications in the appropriate FACP technical manual when making these calculations.

LDM-32F PN 50055:C 03/20/01

1. Introduction Features

Features

LDM-32F

The Lamp Driver Module LDM-32F has 32 alarm lamp/LED driver outputs which sink current to system common (–) on activation. A single positive (+) voltage is required to supply total operating power for all lamps or LEDs when all drivers are activated. The LDM-32F provides a separate driver for system trouble and inputs for a local lamp test switch. A maximum of 16 external control switches may be wired to the LDM-32F. DIP switch SW3 is used to enable or disable the onboard piezo, enable remote switch functions, select a flashing LED function for new alarms and troubles, and other functions. Switch SW4 is used to configure the module to annunciate 32 alarms or 16 troubles. A green

ON LINE

with the host FACP. One LDM-32F supports up to 3 LDM-E32F modules. The LDM-32F is supplied with 4 standoffs and screws for mounting to a CHS-4L chassis or custom backbox.

LED flashes to indicate ongoing communications

Output Connectors for Wiring to LEDs

Lamp Power (+5 VDC)

Security Key

Switch Terminal

Control Switch

Terminal

Address

Switches

Programming

DIP Switch

EIA-485

Terminal

24 VDC

Power

Terminal

KEYSWITCH

SWITCH MATRIX

SW1

SW2

SW3

SW4

4 3 2 1

7 6 5 4 3 2 1

J6 J7 J8

TB2

TB1

Figure 1 LDM-32F

Not Used

J11

LAMP POWER

J10

Lamp Power (+24 VDC)

System Trouble

Ribbon Cable Connection to LDM-E32F

Alarm or Alarm/Trouble Slide Switch

LDM-32F.cdr

ON LINE

Indicates EIA-485 Communication Active

LDM-32F PN 50055:C 03/20/01

Features 1. Introduction

LDM-E32F

Each LDM-E32F expander module provides 32 additional lamp/LED driver outputs from J5, J6, J7 and J8. The expander module has a slide switch SW4 for selecting alarm or alarm and trouble annunciation and an input for a local lamp test switch. In alarm mode, use only one LDM-32F and one LDM-E32F for a maximum of 56 alarm indicators and 8 system status indicators. In alarm/ trouble mode, use one LDM-32F and three LDM-E32Fs for a maximum of 56 alarm indicators, 56 trouble indicators, 16 status indicators and 64 optional control switch inputs. Multiple sets of LDM-32Fs with LDM-E32F expanders increase the system annunciation capabilities beyond 56 zones or points. This is possible by various settings of address switches SW1 and SW2 on the LDM32F (refer to Appendices). Each LDM-E32F is supplied with a 26-conductor expander ribbon cable, 4 standoffs and 4 screws.

Output Connectors for Wiring to LEDs

Security Key

Switch Terminal

Control Switch

Te rm i n al

Alarm or

Alarm/Trouble

Slide Switch

Not Used

Ribbon Cable Connections to Next LDM-E32F

Ribbon Cable Connections from LDM-32F or Previous LDM-E32F

LDM-E32F.cdr

Figure 2 LDM-E32F

LDM-32F PN 50055:C 03/20/01

1. Introduction Features

Connectors

J1 - Switch Matrix

Up to 16 optional external control switches and a local lamp test switch may be attached to the LDM-32F and LDM-E32F via J1 as shown in Figure 16 on page 24. In the Sensiscan 2000, the control switches may be mapped to the CPU function switches and all 9600, the switches may only be used for remote Acknowledge, Reset, Drill and Silence. External switches must be momentary type.

J2 - Ribbon Cable Connection to J3

A single 26-conductor ribbon cable may be connected from J2 on the LDM32F or LDM-E32F (see Figure 6 on page 18) to J3 on adjacent LDM-E32Fs. The ribbon cable carries power, ground and signaling from the master module to up to three expander modules. The preformed cables are supplied in fixed lengths of 24 and 48 inches.

J3 - Ribbon Cable Connection from J2

This connector supports a single 26-conductor ribbon cable from J2 of the previous LDM-32F or LDM-E32F. Refer to Figure 6 on page 18.

J4 - Key Switch Input

This two pin connector is provided as an input on LDM-32F and LDM-E32F modules for an external security key switch. Key switch contacts must be Normally Closed. The key switch prevents unauthorized use of remote control switches wired to J1.

J5, J6, J7 and J8 - Lamp/LED Driver Outputs

input and output modules. In the MS-9200 and MS-

Each connector provides 8 driver outputs for a total of 32 drivers on each LDM32F and LDM-E32F. Each driver is rated for a maximum of 30 volts and a current of 100 mA. Each bipolar Darlington open collector driver output must be current limited by an external resistor. 8-Point Shift and Flash functions are selectable by DIP switch SW3 (refer to "SW3 - Function DIP Switch" on page

13). Lamp/LEDs may function in ‘alarm only’ mode or ‘alarm/trouble’ mode as selected by switch SW4. Use the charts and examples shown in Appendices for additional information.

J9 - 24 VDC Lamp Power/System Trouble

Connector J9 is located only on the LDM-32F. J9 pin 1 provides 24 volts regulated power to all lamps/LEDs used in a custom graphic annunciator. The current limit of J9 pin 1 is dependent upon the current limits of the external power source being used. J9 pin 3 is a driver output for system trouble indication only. J9 pin 2 connects to system common.

J10 - Relay Expander

Not used on the Sensiscan 2000, MS-9200 and MS-9600.

LDM-32F PN 50055:C 03/20/01

Features 1. Introduction

J11 - 5 VDC Lamp Power

This connector is located only on the LDM-32F. J11 pin 1 provides 5 volts regulated power to all lamps/LEDs used in a custom graphic annunciator. The maximum current available from this output is 300 mA. This current is sufficient to power the maximum number of LEDs available with one LDM32F and three LDM-E32Fs (from J5, J6, J7, J8 and one system trouble LED) provided the

current rating per LED is 2 mA.

Switches

SW1 and SW2 - Address Switches

Two rotary BCD switches, located only on the LDM-32F, are used to set the LDM Series system address. Switch SW1 represents the ‘ones’ position and switch SW2 represents the ‘tens’ position of the address setting. In system configurations of 56 zones or less, the switches must be set to address 01 for all LDMs in the system. For configurations larger than 56 zones, multiple sets of LDMs are required with sequential addresses, the first LDM starting at address 01. Each incremental setting adds 64 zones/points to the system.

For example, an MS-9200 system requiring annunciation of alarms and troubles for all 198 points would require four sets of LDMs with addresses 01, 02, 03 and 04. The MS-9600 is an exception (refer to "Appendix C: MS-9600" on page 51 for information).

SW3 - Function DIP Switch

SW3, which is located only on the LDM-32F, is used to set the annunciator functions. Function settings include:

• Number of expanders connected

• 8-Point Shift enabled

• Receive Only communications to host FACP

• Receive/Transmit communications to host FACP

• Control Switch disable

• Piezo disable

• Flash Inhibit

Refer to "Function DIP Switch - SW3" on page 25 for additional information.

SW4 - Alarm/Trouble Mode Switch

The Alarm/Trouble mode switch is installed on the LDM-32F and LDM-E32F. The switch setting on each

expander module must match the switch setting of the associated LDM-32F. ‘Alarm Only’ mode causes the driver outputs to turn on only for alarm conditions per associated zone or point at the host FACP. ‘Alarm/Trouble’ mode causes the driver outputs to turn on for both alarm and trouble conditions per associated zone or point at the host FACP. Since this switch affects the assignments of connectors J5, J6, J7 and J8, make certain to review the appendices in this manual for additional information on wiring to the lamp/LED drivers.

LDM-32F PN 50055:C 03/20/01

1. Introduction Features

Terminal Blocks

TB1 - 24 VDC Power, Earth Ground and Supervision

Removable terminal block TB1 appears only on the LDM-32F. 24 volts powerlimited, regulated, non-resettable power from the host FACP or a compatible UL listed battery backed power supply must be connected to TB1(+) and TB1-

COMMON OUT

COMMON IN

(-) may be used to daisy chain the 24 volts to other LDMs or devices. Earth ground must be connected to TB1and TB1-

N.C. SUPERVISION INPUT

(-). Terminals TB1-

provide a supervised input which may be

POWER OUT

EARTH

(+) and TB1-

. Terminals TB1-6

POWER IN

used to supervise local power sources or other devices. A trouble signal is transmitted to the host FACP upon an open circuit across these terminals. The input must be power-limited. If these terminals are not used, a jumper must be installed.

TB2- EIA-485 In/Out

Removable terminal block TB2 appears only on the LDM-32F. All LDM-32Fs must connect to the EIA-485 communications bus circuit for proper operation. The EIA-485 bus carries commands and data sent between the host FACP and the LDMs. The input must be power-limited.

Cables

Expander Ribbon Cable

The Expander Ribbon Cable (PN 75120) is supplied with the LDM-E32F to allow for connection to the LDM-32F master module. The cable connects between J2 of the LDM-32F or LDM-E32F and J3 of the next LDM-E32F.

The LDM-CBL24 and LDM-CBL48

Cable sets for connecting LDM-32F and LDM-E32F connectors to lamps/ LEDs, switches, etc., are provided through the optional LDM-CBL24 (24" long) and LDM-CBL48 (48" long) cabling kits. Each cable has a plug on one end for connection to the LDM modules.

Each LDM-CBL24 cable kit includes:

• (4) P/N 75116, 24" cable consisting of 8 stranded, multicolored conductors. Cables connect to J5, J6, J7 and J8.

• (1) P/N 75122, 24" cable consisting of 10 stranded, multicolored conductors. Connects to J1, optional control switches.

• (1) P/N 75117, 24" cable consisting of 2 stranded, single color conductors. Connects to

J1, Lamp Test Switch.

• (1) P/N 75118, 24" cable consisting of 3 stranded, multicolored conductors. Connects to J9 or J11, Lamp Power.

LDM-32F PN 50055:C 03/20/01

Key-lock Control Switch Security

A UL listed key-lock switch wired to J4 on the LDM-32F should be used to provide access security for all control switches wired to that set of LDM modules.

Note: Control switches will not function when the key-lock switch is in its closed position.

Key Switch

Figure 3 Key-lock Switch Wiring Diagram

LDM-32F

LDM32F-keysw.cdr

2. Installation

External Cabinets

The CAB-A3F and the CAB-B3F are UL listed cabinets suitable for use in graphic annunciator applications. For size and dimensions, refer to the CAB3F Series Installation Document.

Select and remove the appropriate knockout(s) on the cabinet.

Securely mount the cabinet.

Ground the cabinet to a solid electrical ground per NEC Article 250.

Pull all wiring into the cabinet. (Refer to the appropriate FACP manual for UL Power-limited Wiring Requirements.)

Note: Other cabinets such as those provided by custom graphic annunciator manufacturers may be used provided they meet UL requirements as UL listed secured enclosures.

CHS-4L Chassis

The CHS-4L chassis will support one LDM-32F module and up to three LDME32F expander modules. The chassis is mounted inside the CAB-A3F or the CAB-B3F cabinet.

Mount the CHS-4L Chassis to a cabinet and secure with the hardware provided. The Grounding Cable must be connected to the chassis mounting stud for connection to the annunciator's earth ground terminal for proper operation as well as to aid in transient protection. For each LDM module to be installed on the chassis, connect two female-to-female standoffs (provided) to the upper mounting studs on the chassis.

LDM-32F PN 50055:C 03/20/01

LDM32-chs4l.cdr

Figure 4 CHS-4L Mounting

2. Installation CHS-4L Chassis

Slip the bottom edge of the module or expander board into the slot on the chassis and move the module toward the standoffs. Secure the board to the standoffs with the screws provided. Repeat for installation of additional modules or expanders.

Ldminchs.cdr

Figure 5 Installing LDM Modules in CHS-4L

Connect an expander ribbon cable (P/N 75120) from the LDM-32F connector J2 to J3 of the first LDM-E32F expander module. If multiple LDM-E32F modules are to be used, connect additional cables from J2 to J3 as shown below. One LDM-32F may support a maximum of three LDM-E32F modules.

Expander Ribbon Cables

LDM-32F LDM-E32F LDM-E32F LDM-E32F

Ldmincab.cdr

Figure 6 LDMs Mounted in UL Listed Cabinet

LDM-32F PN 50055:C 03/20/01

Wiring the Power Terminal Block 2. Installation

Wiring the Power Terminal Block

24 VDC Power and Earth Ground

24 VDC power supplied to the LDM must be power-limited. This power is inherently supervised (loss of power also results in a communication failure at the control panel).

• Limit the total wire resistance to 10 ohms.

• Connect the Grounding Cable from the chassis to the earth ground terminal of TB1 (

• Connect 24 VDC power to the terminals of TB1.

24 VDC

Power

Grounding Cable

Figure 7 24 VDC Power Terminals - TB1

EARTH

POWER IN

TB1

(+) and

N.C. Supervision

Inputs Common In (–) Common Out (–) Power In (+24 VDC) Power Out (+24 VDC) Earth

COMMON IN

(–)

LDM32F-TB1.cdr

Wiring of multiple LDM-32F modules.

Host FACP or Remote Power Supply

– 24 VDC

+ 24 VDC

Figure 8 Multiple Module Wiring - 24 VDC

LDM-32F PN 50055:C 03/20/01

First LDM-32F -- -- -- -- -- -- -- Last LDM-32F

TB1 TB1

LDM32F-power.cdr

2. Installation Wiring the EIA-485 Terminal Block

Supervision Input

The Supervision Input, which requires a normally-closed condition, can be used for supervising power sources or ot her devices. It must be power-limited. If employed, a change in status will be transmitted to the host control panel in the event of device failure or restoral.

If not used, a jumper must be installed across these terminals on TB1. A trouble signal will be registered by the control panel if a short circuit does not exist across terminals 6 & 7.

Device to be Supervised

Supervision Inputs (5 VDC @

0.5 mA) Normally Closed Trouble Contacts

Jumper

TB1

Figure 9 Wiring Supervision Terminals

TB1

Wiring the EIA-485 Terminal Block

A maximum of 32 LDM-32Fs may be connected to the EIA-485 bus, but if other types of devices are also connected to this bus, the maximum number of LDM-32Fs must be reduced by the total of such devices. Total annunciation and switch capability depends upon the number of expander modules used.

Communications between the Fire Alarm Control Panel and the LDM-32F is accomplished over a two-wire EIA-485 serial communications bus which must be power-limited. Communications between the host FACP and LDMs is supervised by the fire alarm control panel.

Wiring Specifications

• The EIA-485 circuit cannot be T-tapped; it must be wired in a continuous fashion from the control panel to the LDMs.

• The maximum wiring distance between the panel and LDMs is 6000 feet.

• The wiring must be a 18 AWG to 14 AWG twisted shielded pair cable having a characteristic impedance of 120 ohms, +/- 20%.

• Limit the total wire resistance to 100 ohms.

• Do not run cable adjacent to, or in the same conduit as, 120 volts AC service, noisy electrical circuits that are powering mechanical bells or horns, audio circuits above 25 V power circuits.

Note: Never use the shield for grounding purposes. Terminate the EIA-485 shield at the Fire Alarm Control Panel only.

, motor control circuits, or SCR

RMS

LDM-32F PN 50055:C 03/20/01

LDM32F-super.cdr

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