Harrington Signal HAVED-MP User Manual

Harrington Signal HMX

Installation Instructions

OVERVIEW - Engineer’s Specification

The Harrington Signal HMX system shall include one Master Panel and one or more
Distributed Panels. The system shall be microprocessor based, and shall be compatible for
use with contact closures from the Fire Alarm Control Panel, (FACP). The system shall have
a high-speed communication bus and have the capacity for 6 channels of combined audio
and data on a single pair of wires. The field wiring for the communication bus may be
configured for either Style 4 or Style 7 supervision. The system shall have the capacity for
Fire Fighters Phone communication. The system shall have a minimum capacity of 2048
monitor and control points.

The Master Panel shall contain an integral microphone, dual channel digital message
repeater, (DMR) and digital tone generator, 120 VAC power supply, and battery charger. The
system shall be modular in design, and shall be expandable such that additional system
control points may be configured. The system shall include integral self-diagnostic routines
that shall continually monitor system status, and shall indicate the precise type of trouble
conditions should they occur in the system. A trouble condition within the system shall cause
a trouble indication to be transmitted to the FACP.

Distributed panels shall provide a minimum of 4 Class "B" (Style Y) speaker circuits,
expandable to eight total. Alternately, panel may be configured for 4 Class "A" (Style Z)
speaker circuits. Panel will provide up to 6 simultaneous audio channels, up to 16 Fire
Phone circuits. Amplifiers will contain their own power supplies, battery chargers and provide
auxiliary power for other components. Speaker circuits shall be supervised for short and open
circuit conditions, and shall be able to withstand transient or continuous short-circuit
conditions without damage to the system.

System may be configured for General Alarm All Call operation, Alarm by Zone or
Floor Above / Floor Below as required. Contact closures shall allow immediate broadcast of
an alarm signal and evacuation message to the appropriate area. Non-Alarm areas may
receive alert tones and messages as required or activated by the FACP.

The alarm signal/evacuation message shall be broadcast until the FACP is reset, or until
emergency personnel interrupt the broadcast with a manual page.

To prevent unauthorized tampering, the voice evacuation system shall disable the
microphone if the microphone is keyed continuously for 3 minutes or more. Systems that do
not have this feature shall not be acceptable.

2519 Fourth Avenue

Moline, IL 61265

[phone] (v)

P/N HS-5010 REV. C

page 1 of 12

[phone] (f)

www.harringtonfire.com

Please read this Manual completely before installing the HMX System.

INSTALLATION

Installer must insure that all wiring and devices installed in system meet the following standards:

National Electrical Code (NFPA 70)
NFPA Standard 72
Life Safety Code (NFPA 101)

Install equipment in a clean, dry environment, avoid installation where equipment could be subjected to
vibration. ** Make sure all Non-Power Limited cabling is separated from Power Limited cabling.**

WIRING (Refer to wiring and terminal designation diagrams)

MASTER PANEL

1. Connect Netcom Bus between all panels. Maximum distance between panels is 4000’ (min 16 AWG)
or 120 Ohms max. Impedance. See page 5 for wire type.

2. Connect AC power to master panel and then connect batteries.

3. Once power is on to the unit, connect battery wiring harness from the PWR power supply board TB­1 Red (+) / Black (-). Observe polarity. Minimum battery size is 7AHr. (Max 24 Ahr in a separate
Battery cabinet) (use 2 12V batteries connected in series) *See Master panel wiring diagram on page

7. *

NOTE: Wiring for batteries and 120 VAC is Non Power-Limited. Care must be taken to insure that all
Power-Limited wiring maintain a minimum spacing of ¼" from any Non Power-Limited wiring. If
batteries must be located in separate enclosure, provide separate conduit run for battery wiring only.

DISTRIBUTED PANELS
(Maximum number of Distributed Panels is 250 on a system)

1.Speaker circuits require an End of Line resistor for supervision. Attach a “reference value” EOLR for
the speaker circuits to TB9 - 1 & 2 on MBR board. This value must be placed at the end of the speaker
line as well. The system is shipped from the factory with 10kOhm ½ watt EOLR.

2. Connect all speaker loops (UL listed devices) to TB1 - TB4 along the top edge of the MBR mother
board in the Distributed panels. Fire Phone circuit connects to TB5.-TB6 on the left side of the MBR
Motherboard in the Distributed panels.

3. Connect 120 VAC, 60 Hz, power to the black and white pigtail leads from transformer primary. For
240VAC systems attach power to both of the Black leads. Secure ground lead to grounding stud in
cabinet located on the backplate.

4. Once all power and circuits are connected,

initiate a 'Global Reset' This is done by holding the "Fault
Silence' switch in the up position while the 'System Reset' switch is clicked twice. This will rerun the
'Power On Diagnostics' program. T

he Green LED will remain on to indicate that the HMX system is
fully operational and all circuits are nominal. Observe the display during the reset, it will show how
many DP in the loop.

BATTERY MAINTENANCE

Typical battery life is approximately 3-5 years depending on usage. Always replace both
batteries with same amp hour ratings and of approximately the same age. Refer to the battery
manufacturer's specifications for the particular battery used.

2519 Fourth Avenue

Moline, IL 61265

[phone] (v)

P/N HS-5010 REV. C

page 2 of 12

[phone] (f)

www.harringtonfire.com

System Operation

**Note** ALL panels in system are pre-programmed at the factory

Alarm When an input on the MX-II FACP Interface card is pulled down to circuit common

(0VDC), the Evacuation Signal and Message will be broadcast into the selected Evacuation
Zone. If 'Floor-Above/Floor-Below' has been enabled, the Evacuation Zone for the floor above
and the floor below the selected zone(s) will also be activated.

The floor(s) receiving the Alarm Tone/Message is displayed by a slow (2 second) flashing of the
LED associated with the Evacuation Zone on the Paging Control panel.

If 'Set Alert Non Fire Floors' has been enabled in programming, all floors not broadcasting the
Evacuation Signal and Message will begin broadcasting the Alert Signal and Message.

In addition, if the paging microphone is used and no Evacuation/Paging Zones have been
manually selected, paging will automatically be routed to those zones that are in alarm. The
Evacuation Signal will resume when paging is ended as will the Evacuation Message.

If an Evacuation/Paging Zone is selected manually, paging will take place in the selected zone, or
zones, only (operation if system was designed as “dual” channel)..

Within a single Distributed Panel, and due to the nature of Dual Channel systems using one
amplifier per channel, paging into an Evacuation/Paging Zone broadcasting the Alert Signal and
Message will silence the other zones also broadcasting the Alert Signal and Message if there is
also a zone broadcasting the Alarm Signal and Message. In other words, within a single
Distributed panel only two audible signals can be broadcast at one time, either Alarm and Alert
Signals, Alarm Signal and Paging or Alert Signal and Paging.

Paging When an Evacuation/Paging Zone is selected by the operator using the associated
switches on the Paging Control panel, the LED(s) will indicate which zone(s) have been selected.
The All-Call switch on the HMX Control panel will select all zones for paging when clicked once.
A second click of the All-Call switch will deselect all zones.

The Zone Selection switches indicate which zones have been selected for paging. Broadcast of
live voice messages does not take place until the Push-to-Talk switch on the microphone is
pressed.

Fire Phone When a Fire Phone Handset is plugged into a Fire Phone Jack, the LED on the Zone
Control panel associated with that Fire Phone zone will start flashing. A ringing signal will be
heard to indicate that a handset has been jacked in. The ringing signal will cease when the Fire
Phone Zone is selected.

Normally, only one Fire Phone Zone is selected at a time. Selecting another zone where a
handset is jacked in will deselect the other zone(s).

2519 Fourth Avenue

Moline, IL 61265

[phone] (v)

P/N HS-5010 REV. C

page 3 of 12

[phone] (f)

www.harringtonfire.com

HMX Control Panel Refer to Master Panel Controls and Display diagram (Page 6).

The Control Panel status indicators are 'Alarm', 'Fault' and 'Power'.

During 'Power On Diagnostics', the system is scanned for active Distributed Panels and
peripherals. The Message Display indicates how many Distributed Panels have been found and
all event buffers are cleared.

The 'Power' indicator is on as long as there is power available to the HMX Master Panel.

The 'Alarm' indicator will be on whenever an Evacuation Signal or Alert Signal is active.

The 'Fault' indicator will be on (blinking) whenever a fault has occurred in the HMX system. The
Message display will indicate a code for the fault that has occurred. In addition, the audible fault
signal will be active (beep tone)as long as the fault persists. The 'Fault Silence' switch can be used
to silence the audible fault indication, but the visual indicator can only be cleared by an HMX
system Reset. If the fault is cleared manually the yellow led indicator can be cleared with a single
click of the reset switch.

The 'All-Call' switch will select all available Evacuation/Paging zones on the Paging/Zone Control
panel when clicked. Individual paging zones may be deselected using the Paging/Zone Control
switches, but a second click of the 'All-Call' switch will deselect the remainder.

The 'System Reset' switch will clear the Master Panel back to it's power on condition but will not
cause the system to rerun the 'Power On Diagnostics' program (see 'Global Reset' below). After
the 'System Reset' has run its course any Evacuation or Alert Signal that has been input will be re­processed.

The 'System Reset' switch must be clicked twice within a two second interval to take effect.

“GLOBAL RESET”:

A 'Global Reset' can be initiated by holding the "Fault Silence' switch in the up position while the
'System Reset' switch is clicked twice .

This will rerun the 'Power On Diagnostics' program.

Observe the message display during the reset. It will display +0 then the number of Distributed
panels in the communication loop of the HMX system.

2519 Fourth Avenue

Moline, IL 61265

[phone] (v)

P/N HS-5010 REV. C

page 4 of 12

[phone] (f)

www.harringtonfire.com

Harrington Signal HMX

True Multiplex System

Distributed Panel

Voice Evacuation

Speaker Circuits

FF

II
RR
EE

Typical System Layout

NetComm Loop:Unshielded Twisted Pair, Single pair

18/2 or larger, Unshielded twisted pair (UTP)

FPL,FPLR,FPLP run in conduit

Each pair in it’s own separate conduit.

Do NOT run NetComm cable with any other Data source

Data Source such as addressable SLC circuits, strobes,

high voltage wiring, network cabling etc. must be

run separate from NetComm.

Master Panel

Head End Control

PAGING

CONTROL

TB1

TB1

TB2

TB3

EVX-25

EVX-50

EVX-100

TB2

TB3

EVX-25

EVX-50

EVX-100

Local Audio Amplifiers

Distributed Panel

TB1

TB1

TB2

TB3

EVX-25

EVX-50

EVX-100

Local Audio Amplifiers

TB2

TB3

EVX-25

EVX-50

EVX-100

FF

II
RR
EE

Fire

Phone

Fire Phone

Circuit

Voice Evacuation

Speaker Circuits

FF

II
RR
EE

FF

II
RR
EE

Fire

Phone

Fire Phone

Circuit

FIRE PHONE CONTROL

P/N HS-5010 REV. C

page 5 of 12

2519 Fourth Avenue

Moline, IL 61265

[phone] (v)

[phone] (f)

www.harringtonfire.com

Master Panel Wiring

Function

Switches & LEDs

Fire Phone

Handset

Master Panel

Controls and Displays

Alarm

Fault

HMX

CONTROL

Power

MP 64/P panel

System Reset

Paging All-Call

Fault Silence

Lamp Test

PAGING/ZONE CONTROL

FIRE PHONE CONTROL

Message Display

Paging Microphone

FACP

I/O Control

(Non-Supervised)

*2

FACP

SIGNAL CKT

(Supervised)

P1

MFP

3

PWR

1

223

AC Power

Input

Transformer

refer to illustration

on page 8 for info

on jumper J1 placement

P3

P2

LED1

1

NetCom Bus

*A *A

1
2

J1

3

P2

TB1 TB2

DCC

LED3LED2LED1

TB3 TB4 TB5P1

(Supervised)

*A - Optional wiring for
Style 7 supervision

P5

P3

P5

P4

ASC

P4

TB1

P1

P2

P3

SSC

TB1 TB2

Input
Card

to cabinet
backplate

120 VAC

(Supervised)

*1

P/N HS-5010 REV. C

page 6 of 12

24V Battery

-

+

(Supervised)

*1

All wiring with exception of
120 VAC and Battery Connection
is Power-Limited.

H NG

Route AC power and Battery
wires to bottom-left or lower-left
side Knock-out ..

MX-II

All Power Limited wiring must

*1

maintain a min. 1/4“ separation
from Non Power Limited wiring.

(This requirement may be waived if
Type FPL, FPLR or FPLP wire is used
for Power Limited circuits)

Wiring from FACP must be run

*2

in conduit. Panels must be within
20’ and in the same room.

FACP
EOLR

2519 Fourth Avenue

Moline, IL 61265

[phone] (v)

[phone] (f)

www.harringtonfire.com

SPEAKER OUTPUT

25 or 50W max depending
on amplifier used.
Speaker line EOLR must be
equal to Matching EOLR
installed on TB9. All must be
Listed EOL devices.

Fire

Phone

Loop

Supervised

Power Limited

1

2

3

4

J11

J9

1 2 3 4

1 2 3 4

1 2 3 4

TB11

TB5

TB6

TB7

J8

1 2 3 4

TB1

P10

P14

P15

P16

Power Limited

Distributed Panel Wiring

Break wire to maintain supervision. Do not loop wire around speaker terminals

Supervised - Power Limited

CLASS “B” (Style “Y”)

WIRING

CLASS “A” (Style “Z”)

WIRING

FF

P9

P11

P12

P13

Supervised

TB1

1
2
3
4
5
6
7
8

MESSAGE

GAIN

FF
II
RR
EE

1 2 3 4

TB3

GRN

RED

S1

TB2

TB8

1 2 345 6 7 8

1

2

YEL

MIC

GAIN

II
RR
EE

EOL

J1

FAULT

NORMAL

ALARM

SN1

31

1 2 3 4

MBR

TB9

J2

1 2 3

EVX-25E

EVX-50E

EVX-100E

TB3

Matching

EOLR

J1

J2

TB2

11
10

9
8
7
6
5
4
3
2
1

P2

1 2 3 4

TB4

J3

J4

LED1

TB10

J6

J5

J7

TB1

1 2 345 6 7 8

1

TB3

2
3
4
5

YEL

6

GRN

7
8

RED

MESSAGE

GAIN

S1

P1 P2 P3 P4 P5 P6 P7 P8

1

2

MIC

GAIN

FF
II
RR

Standard Life Safety Speakers, Strobes connected and powered separately

P2

EE

*A *A

1
2

J1

3

TB1 TB2

LED3LED2LED1

TB3 TB4 TB5P1

II

II

RR

RR

EE

EE

FF

FF

All wiring with exception of
120 VAC and Battery Connection
is Power-Limited.

TB2

11

J1

FAULT

NORMAL

ALARM

J2

1 2 3

10

9
8
7
6
5
4
3
2
1

P2

Route AC power and Battery
wires to bottom-left or lower-left
side K.O.

*1

All Power Limited wiring must

EVX-25E

EVX-50E

EVX-100E

SN1

maintain a min. 1/4“ separation
from Non Power Limited wiring.

(This requirement may be waived if
Type FPL, FPLR or FPLP wire is used
for Power Limited circuits)

EOLR

P3

P4

E
O
L

NetCom Bus

(Supervised)

*A - Optional wiring for
Style 7 supervision

120 VAC

(Supervised)

*1

+

24V Battery

-

(Supervised)

*1

-

+

EVX 25(E) / 50(E) / 100(E) TROUBLE CODES

When a unit goes into a Trouble Condition, the Yellow LED wil remain on until the trouble is cleared. The Green
LED will flash a Code to indicate the type of Trouble Condition. There will be a pause between repeats of the
code. When multiple Trouble Conditions occur at the same time, the codes will add together.

The number of flashes and associated Trouble Condition are listed below.

Code Trouble Code Trouble

1 Power Failure 8 Amplifier Trouble
2 Open Speaker Circuit 16 Microphone Trouble
4 Shorted Speaker Circuit 32 Battery Trouble
6 External Trouble / Ground Fault

* 6 flashes typically indicates “External Trouble”, such as an EVX-RM. If LED 4 is on, the 6 flash indicates a ground fault.
If both a ground fault condition and an external trouble occur simultaneously, the fault codes will not combine for 12 flash.

2519 Fourth Avenue

Moline, IL 61265

P/N HS-5010 REV. C

page 7 of 12

[phone] (v)

[phone] (f)

www.harringtonfire.com

Master Panel DCC

Connection Detail

Terminal Designation

From

Last

1
2

J1

3

*

TB1 TB2

To

Next

Supervision

*J1 Removed

Style 4

P3

Each Send/Return

Loop must be run
in it’s own conduit

Supervised - Power Limited

Optional - Style 7

Supervision

Conduit

Twisted Pair

P2

DCC

1 2 4

3 2 1

(Factory wired)

Dist. Panel

DCC

TB3

EVX-25E/50E/100E

2------------------1
3-----------------10

(Factory wired)

TB3 TB4 TB5P1

3

TB2

PWR

LED3LED2LED1

TB2

Supervised

Power Limited

P4

(MP-DCC wiring shown)

TB1 TB2

*J1 - Pos 1-2 for Master Panel
Pos 2-3 for Dist. Panel

1
2
3

Master

J1

1
2
3

Dist.

J1

TB1

Primary data loop
1 - Rx - (From last/previous DCC)
2 - Rx +
Secondary data loop
3 - Rx - (From last/previous DCC)
4 - Rx +

TB2

Primary data loop
1 - Tx - (To first/next DCC)
2 - Tx +
Secondary data loop
3 - Tx - (To first/next DCC)
4 - Tx +

TB3

1 - Earth (Chassis)
2 - Circuit NEG
3 - + 24 VDC @
160 mA (Remote)
220 mA (Master)
4 - Fault (Pull Down 0V)

TB4 Not Connected

TB5 Not Connected

2519 Fourth Avenue

Moline, IL 61265

[phone] (v)

[phone] (f)

P/N HS-5010 REV. C

page 8 of 12

www.harringtonfire.com

To FACP Input Control

(N.O. Dry Contact)

1

Non-Supervised - Power Limited

8

MX-II / PWR

Connection Detail

Terminal Designation

TB1 TB2

1

2
.
.
.

Input

11

Card

7

IOI

TB1

1- 8 Input Control
(1mA 5VDC)
9 Circuit Common (NEG)
10 FACP Bell Circuit + (Alarm
11 FACP Bell Circuit - Polarity)

(10mA 24VDC)

TB2

1 FACP EOLR
2 FACP EOLR
3 Circuit Common (NEG)
4-11 Input Control

(1mA 5VDC)

Common

NEG

+

-

**ALARM Polarity shown**

To FACP Bell Circuit

(24V 10mA min. rating)

This wiring is Supervised by the FACP and

is Power Limited PROVIDED the FACP Bell

Circuit is Power Limited.

(Factory wired)

DCC

TB3

Power Limited

2 3 4

3

TS-1

Supervised

MX-II

11

Wiring

FACP Bell Circuit - #18 AWG.
Input Control - #24 AWG.
(Must be in the same room within
20 feet of panel, in conduit)

jumper J1
remove before connecting batteries

1

End of Line Resistor
for FACP Bell Circuit

In normal operation, FACP
will supervise system by
reading its EOLR. Under any
Fault condition in the HMX
system a contact will open
resulting in a Fault on the
FACP bell circuit.

MX-PWR

TB1:

Ter. 1 & 2

battery connections
1- circuit negative
2-+24VDC

max charging current: 1A
max reccomended battery
size: 18ah

TS1:

Ter. 1,2,3

+24 VDC output
1-fault report output
2-+24 VDC
3-circuit negative

PWR

11223

TS-2

P/N HS-5010 REV. C

page 9 of 12

TS2:

Ter. 1,2,3
28 VAC input

1,2 - 28 VAC in
3 - ground fault detect,
to chassis (optional- if

unit mounted with snap
track, connection is necessary.
If metal standoff used in lower
left corner, connection is not
necessary)

2519 Fourth Avenue

Moline, IL 61265

[phone] (v)

[phone] (f)

www.harringtonfire.com

Annunciation of “Ground Faults” on Notification Appliance Circuits

The following test points are provided to show voltage reading at terminals.

The K ohm resistance values shown annunciate a “ground fault” at panel.

Component Measured Voltage DC to Chassis Ground Resistance Range to cause Ground

Fault in Standby (measured in 5K increments)

MX-MBR W/STROBE SPKR + SPKR - SPKR + SPKR ­ PS CONNECTED 23.5 10 <345K - 350K <120K - 125K

MX-MBR FIRE PHONE PHONE + PHONE - PHONE + PHONE ­CONNECTION (TB5, TB6) 21 -3 <295K - 300K <30K - 35K

MX-MBR W/EVX-ZAB SPKR + SPKR - SPKR + SPKR ­CONNECTED 24 10 <240K - 245K <80K - 85K

MX-MBR W/EVX-ZA SPKR + SPKR - SPKR + SPKR ­CONNECTED 24 9 <240K - 245K <65K - 70K

MX-FPI W/MX-FPR PHONE + PHONE - PHONE + PHONE ­CONNECTED 21 -3 <205K - 210K <20K - 25K

MX-FPI W/MX-FPO2 PHONE + PHONE - PHONE + PHONE ­CONNECTED 21 -3 <205K - 210K <20K - 25K

EVX-25(E),-50(E), -100(E) SPKR + SPKR - SPKR + SPKR ­PRIMARY AMP 24.5 10 <260K - 265K <90K - 95K

EVX-BAB SPKR + SPKR - SPKR + SPKR -

24 10 <260K - 265K <80K - 85K

2519 Fourth Avenue

Moline, IL 61265

[phone] (v)

[phone] (f)

P/N HS-5010 REV. C

page 10 of 12

www.harringtonfire.com

MBR

Connection Detail

Terminal Designation

SPEAKER OUTPUT

25 or 50W max depending
on amplifier used.
Speaker line EOLR must be
equal to Matching EOLR
installed on TB9. All must be
Listed EOL devices.

Fire

Phone

Loop

Supervised

Power Limited

1

1 2 3 4

TB5

1 2 3 4

TB1

P10

CLASS “A” (Style “Z”)

WIRING

FF

II
RR
EE

1 2 3 4

TB2

P9

FF
II
RR
EE

EOL

31

1 2 3 4

TB3

2

1 2 3 4

3

4

Wiring

Speaker Zones - #18 AWG min.

Fire Phone - #22 AWG min.

(Max. Line Res. = 50 Ohms )

Matching EOLR

Resistor value installed here sets the EOLR value for the
speaker zones. Value must be between 1.8K and 100K
Ohms, Min ½ Watt. Must be Listed EOL Devices (Not Supplied).

TB6

P11

P14

1 2 3 4

TB7

P12

P15

J11

P16

P13

TB11

J9

J8

Supervised

Power Limited

TB8

MBR

TB9

Matching

EOLR

CLASS “B” (Style “Y”)

1 2 3 4

TB4

J7

J1

J3

J2

J4

LED1

Break wire to maintain supervision. Do not loop wire around speaker terminals

Supervised - Power Limited

FF

FF

II

II

RR

WIRING

TB10

Standard Life Safety Speakers, Strobes connected and powered separately

1
2
3

J6

J5

P2

P1 P2 P3 P4 P5 P6 P7 P8

TB1 - Speaker Zone 1

TB1 - Speaker Zone 1

1 Speaker Output ­2 Speaker Output +
3 Class “A” Return +
4 Class “A” Return -

TB2 - Speaker Zone 2
TB3 - Speaker Zone 3
TB4 - Speaker Zone 4
TB5

TB6

3 Fire Phone Loop - (24VDC @50mA Max)
4 Fire Phone Loop +

TB7 No Connections

TB-8 - Amplifier Input

1
2

3
4

TB-11 Strobe Connection (if used)

J9 - right 2 rows “shorted” class B speaker circuits

left 2 rows “shorted” class A speaker circuits
J8 - right 2 rows “shorted” no strobes

RR

EE

EE

*A *A

J1

TB1 TB2

LED3LED2LED1

TB3 TB4 TB5P1

1 Fire Phone Loop - (24VDC @50mA Max)
2 Fire Phone Loop +

25/70 Vrms 100W max.

25/70 Vrms 100W max.

E
O

EOLR

L

FF
II
RR
EE

NetCom Bus

(Supervised)

*A - Optional wiring for
Style 7 supervision

P3

P4

TB-1 wiring if Class A

Fire Phone Loop

Fire Phone Loop - Connection Detail

---Supervised,Power Limited

Fire Phone

Handset

Jack

* Maximum line resistance = 50 Ohms

Fire Phone

Handset

Jack

P/N HS-5010 REV. C

page 11 of 12

10K 1/2W

EOLR

Match EOLR to that of TB9 value

2519 Fourth Avenue

Moline, IL 61265

[phone] (v)

[phone] (f)

www.harringtonfire.com

HMX Specifications

Communications Bus: The communications bus conforms to the RS-485 standard and requires the use of

UTP- cable for 1M Baud data rates. Wiring must be run in conduit in a daisy chain from the Master Panel to
the first Dist. Panel, from each Dist. Panel to the next Dist. Panel and from the last Dist. Panel back to the
Master Panel. When style 7 wiring is used, a separate conduit for each bus must be used.

Voltage: 5V peak-to-peak max.
Current: 50mA max.
Impedance: 120 Ohms
(max. imp. between panels)
Frequency: 1.024MHz

Power Requirements: Power supplied to the DCC module is routed to any attached peripherals. These
peripherals in turn determine whether the DCC is part of a Master Panel or a Dist. Panel.. Amplifier modules
in Dist. Panel are powered separately.

Battery Charging

Maximum charging current from EVX-25/50 is 800mA.
Maximum battery size* is 18Ah for EVX-25E and EVX-50E.
Maximum Battery size* for EVX-100E is 24 Ah.
* 12 amp hour is maximum size that will house in a MP or DP cabinet

Electrical Ratings

All circuits @ 24 VDC

MASTER PANEL Stand by condition Alarm condition
DCC 73mA *147mA combine DCC, ASC & MMC
ASC 34mA
MMC 38mA
MFP 10mA 20mA
MFH 12mA 12mA
IOI 19mA 30mA
SSC 29mA 15mA
SLC 0.2mA 8mA

TOTAL 215.2 232mA

DISTRIBUTED PANEL Stand by condition Alarm condition
DCC 76mA *104mA combine both DCC and MBR
MBR 28mA
AMI 16mA 26mA
FPI 20mA 41mA
MBK 6mA 42mA

TOTAL 149mA 213mA

2519 Fourth Avenue

Moline, IL 61265

[phone] (v)

[phone] (f)

P/N HS-5010 REV. C

page 12 of 12

www.harringtonfire.com