The LCD-80TM alphanumeric display module is an ancillary display and control device that may be used with the
AM2020/AFP1010 and AFP-200 Fire Alarm Control Panels.
• 80-character LCD display (backlit under normal & alarm conditions).
• No programming necessary — uses time and labels from the control panel.
• Local piezo sounder with alarm and trouble resound.
• Device type identifiers from the control panel.
• Device & zone custom alpha labels from the control panel.
• Time/date and device address from the control panel.
• Operates in addition to control panel CRT if desired.
• EIA-485 connects to control panel terminal port.
• Time/date display field.
• Control buttons for:
Status Display
Contrast Adjustment
Lamp Test
Global Acknowledge
Signal Silence
System Reset
• Mounting options:
ABF-1 package with key switch & phone jack options
ABF-1D package with keylock and door
Can be located up to 6000 feet from the panel
Last LCD-80TM Options (SW1)
SW1-1 Set "ON" to disable LCD-80TM piezo.
SW1-2 Set "ON" to disable Acknowledge, Signal
Silence and Reset switches.
Last LCD-80TM Options (SW3)
SW3-1 Set "ON" if this LCD-80TM is the last
LCD-80TM on the EIA-485 loop.
SW3-2 Set "ON" to enable terminal supervision.
Optional ABF-1D
Piezo Sounder
The LCD-80TM sounder will be
activated when any new alarm or
trouble is received from the panel.
It is silenced by the ACKNOWLEDGE switch.
For connection of an optional AKS-1 keyswitch.
AKS-1 Keyswitch connector
When the two pins on this interface are shorted, all
six keys on the membrane panel will be ignored by
the LCD-80TM.
Figure 1-1: LCD-80TM Component Summary
Current Consumption @ 24 VDC (Regulated and filtered)
Normal (no activity): 100 mA
Standby (trouble condition): 50 mA
Alarm: 100 mA
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Terminal Connections
EIA-485
+24 VDC POWER
Note: These connections must be
power-limited and the +24 volt power
must be regulated and filtered.
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The LCD-80TM operates like a CRT terminal without full keyboard capability, but with the advantages of 24 VDC
power, wall mount, and multiple terminal location with Acknowledge, Signal Silence and Reset. The LCD-80TM has
full point-display capacity and requires no programming.
CCM-1
NOTES:
EIA-485: Maximum of 6000 feet between units.
Up to 32 LCD-80TMs may be used on the EIA-485 circuit (3.2
amps regulated power max required - consult control panel's
battery calculations).
Optional CRT Display Monitor connection to CCM-1. One
max - requires programming at the AM2020/AFP1010. If a
CRT is not used, connect the LCD-80TM directly to DIA
TB1.
Between each LCD-80TM are four wires: A twisted-shielded pair
for data communications and an open pair for 24 VDC power.
The return circuit only requires two wires for data communication.
Figure 1-2: Typical LCD-80TM Connection
AM2020/AFP1010 Note: The EIA-485 interface used for the LCD-80TM should not be confused with the EIA-485
circuit used for the ACS interface. The CCM-1 Convertor Module converts the EIA-232 Terminal Interface from the
SIB-2048 into the EIA-485 standard required by the LCD-80TM. The DIA-2020N can support LCD-80TMs in terminal
mode without the need for a CCM-1 converter module (if a CRT is not being used).
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Section Two: Operating the LCD-80TM
Display Patterns
The LCD-80TM displays directly the information from the AFP-200 or AM2020/AFP1010 terminal interface without
alteration.
Note: The ALARMS PENDING, TROUBLES PENDING, Alarm Count and Trouble Count information will not be
displayed on the LCD-80TM.
If the LCD-80TM fails to receive communications from the panel for a period of over one minute, it will activate its local
sounder and display the following message:
CC
OO
MM
MM
UU
NINI
CC
AA
TT
II
OO
NN
SS
FF
AA
II
C
O
M
M
U
NI
C
A
T
I
O
N
CC
OO
MM
MM
UU
NINI
CC
AA
TT
Status Button
The LCD-80TM, when used with the AM2020/AFP1010 will keep a count of alarms in the system (number of alarm
messages, minus alarm clear messages, since the last ALL SYSTEMS NORMAL message). When this key is pressed
the alarm count is displayed in place of the time/date for 10 seconds.
II
OO
NN
S
SS
F
FF
A
AA
I
II
LL
L
LL
Contrast Adjust
Repeatedly press this switch until the display's contrast is acceptable.
Lamp Test Button
If the backlight LCD display has been turned off due to a trouble condition in
the system, pressing this switch will illuminate the display for 60 seconds.
This switch also silences the local piezo. While it is held down, all segments
on the display will be turned on and the piezo will sound.
Global Acknowledge Button
When the Global Acknowledge switch is pressed on the front panel, the LCD80TM sends an Acknowledge command to the control panel, emulating a CRT
terminal.
Silence Button
When the SILENCE switch is pressed on the front panel, the LCD-80TM sends
a Signal Silence command to the control panel, emulating the CRT terminal.
Reset Button
When the System Reset switch is pressed on the front panel, the LCD-80TM
sends a Reset command to the control panel, emulating the CRT terminal.
Note: If Acknowledge, Silence, and Reset switches are enabled for system control, access security must be provided by
mounting the LCD-80TM in a locked Fire Alarm Cabinet, or Annunciator Backbox model ABF-1/1D or ABS-1T with AKS1 key switch option.
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Section Three: LCD-80TM Electrical Connections
IMPORTANT: The LCD-80TM requires the connection of 24 VDC power in addition to the EIA-485 interface to operate.
LCD-80TM
Notes:
1) All connections are power-limited and supervised.
2) A maximum of 32 LCD-80TMs may be connected to this circuit.
( - ) EIA-485
(+) EIA-485
From EIA-485 Source
(+) (-)
(refer to table below)
To next LCD-80TM
Refer to Appendix A for shield
termination instructions.
3) 6000 feet maximum distance (@ 16 AWG) between the panel and the first or last LCD-80TM and between each additional LCD80TM.
4) Use overall foil/braided-shield twisted pair cable suitable for EIA-485 applications (refer to Appendix A for shield termination
information).
5) The EIA-485 circuit is rated at 5.5 VDC maximum and 60 mA maximum.
6) Each LCD-80TM must have R-120 resistors installed across the in and out terminals as shown.
Figure 2-1: LCD-80TM EIA-485 Connection
EIA-485
OUT (-) Term. 4P3-4TB5-2TB1-4
RET (-) Term. 3P 3-3TB 5-4TB 1-3
OUT(+) Term. 2P3-2TB5-1TB1-2
CCM-1
(AM2020/AFP 1010)
AFP-200
(AM2020/AFP 1010)
DIA
RET(+) Term. 1P 3-1TB5-3TB 1-1
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Table 2-1: EIA-485 Connection
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The LCD-80TM can be powered by an MPS-24A Main Power Supply or by the AFP-200 power supply. The power run
to the LCD-80TM must be power-limited but need not contain a power supervision relay since loss of power is inherently supervised through loss of communication with the LCD-80TM. Maximum LCD-80TM current draw from power
supply (under normal and alarm conditions) is 100 mA. Maximum current draw from the control panel's secondary
power source (batteries) under loss of AC power (or when the panel is in atrouble condition) is 50 mA.
LCD-80TM
From Main Power Supply
(refer to table below)
( - ) Common
(+) 24 VDC Power
(+) (-)
To next LCD-80TM
Figure 2-2: Supplying Power to the LCD-80TM
MPS-24A AFP-200
24 VDC (+)
Common (-)
TB3-3TB1-3
TB3-4TB1-4
Table 2-2: Power Connections
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Appendix A: EIA-485 Shield Terminations
The EIA-485 circuit must be wired using a twisted-shielded pair cable having a characteristic impedance of 120 ohms,
+/- 20%. Do not run cable adjacent to; or in the same conduit as; 120-volt AC service, noisy electrical circuits that are
powering mechanical bells or horns, audio circuits above 25 VRMS, motor control circuits, or SCR power circuits
Note: All enclosures, including the FACP backbox, must be connected to earth ground! Never use the shield for
grounding purposes.
Terminate the EIA-485 shields at both the Out and Return ends of the CCM-1 (or the DIA-1010 or DIA-2020 Display
Interface Board if employing that option), at either the cabinet (when not in conduit) or at system common (when in
conduit) as outlined below:
When the EIA-485 shield is not in conduit: At each respective LCD-80TM enclosure (except the first on the
loop), terminate the shield coming in from the previous LCD-80TM at the outside of the cabinet backbox (earth
ground). Let the outgoing (to next LCD-80TM) shield float (no connection). Shield termination between LCD80TMs can only occur at the receiving end - the end connected to P1 Terminals 2 and 4. For the first LCD-80TM
on the loop, let the shield coming in from the CCM-1 or DIA float.
When the EIA-485 shield is in conduit: At each respective LCD-80TM enclosure (except the first on the loop),
terminate the shield coming in from the previous LCD-80TM at system common. Let the shield going out to next
LCD-80TM shield float (no connection). Shield termination between LCD-80TMs can only occur at the receiving
end - the end connected to LCD-80TM P1 Terminals 2 and 4. For the first LCD-80TM on the loop, let the shield
coming in from the CCM-1 or DIA float.
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Notes
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Document 50182 Rev A2 10/28/96 P/N 50182:A2
Notes
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