LCD4501/4501T
Installation Instructions
®
©1999, 2001 Digital Security Controls Ltd., Toronto, Canada
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Printed in Canada 29002887 R002
1. Introduction
The LCD4501 keypad, for use on
Maxsys PC4010/4020, presents
system status via a 32-character
liquid crystal display.
2. Specifications
• Connects to control panel via 4-
wire Combus
• Current Draw: 50mA (from
Combus)
• Optional tamper version
(LCD4501T)
• Five programmable function
keys
• Ready (green),Armed (red) and
Trouble (yellow) status lights
• LCD4501R/LCD4501RT with
red bezel also available
(Canada only)
Please refer to the System Installation Manual for information
on limitations regarding product use and function and
information on the limitations as to liability of the manufacturer.
3. Installation
3.1 Unpacking
The LCD4501 package includes the following parts:
• One LCD4501 keypad
• Four mounting screws
• One keypad inner door label
• One set of Fire, Auxiliary and Panic key labels
3.2 Mounting
The Keypad should be mounted where it is accessible to designated points of entry/
exit. Once a dry and secure location is selected, perform the following steps to
mount the keypad:
1. Remove the keypad backplate by loosening the screw located at the base of
the unit.
2. Secure the keypad backplate to the wall in the desired location. Use the screws
provided.
Before mounting the keypad to its backplate, complete keypad wiring.
3.3 Wiring
Before beginning to wire the unit, ensure that all power (AC transformer and
battery) is disconnected from the control panel.
To complete keypad wiring, connect the four Combus wires (red, black, yellow
and green) to the keypad terminals (R B Y G). Consult the diagram below:
3.4 Applying Power
Once all wiring is complete, apply power to the control panel. Connect the battery
leads to the battery, then connect the AC transformer. For more information on
control panel power specifications, see the control panel Installation Manual.
NOTE: Do not connect the power until all wiring is complete.
4. Enrolling the Keypad
Once all wiring is complete, the module must be enrolled on the system. For
instructions on enrolling keypads, see your PC4010/4020 Installation Manual.
5. Programming the Keypad
Various programming items pertain to the operation of the keypad. See your PC4010/
4020 Installation Manual for descriptions of the following programmable features:
• Partition and Global keypad options
• Keypad time-out
• Keypad blanking
• Fire, Auxiliary and Panic Keys
• Keypad lockout
• Keypad tampers (this feature must be enabled if using tamper version
keypads)
• Function keys: the five function keys are programmed as Stay Arm, Away
Arm, Door Chime Activation, Reset and Quick Exit by default. To alter these
keys from their default settings, see the list of available options in the PC4010/
4020 v3.0 Installation Manual.
NOTE: Function keys are only available when used with PC4010/4020 v3.0 and higher.
