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7800 Series Keypad Installation Guide 5

Wiring the 333 Suppressor

One Model 333 Suppressor is

included with the 7873 keypad. If

the device being controlled by the

relay is connected to the N/O and

C wires, install the suppressor on

the N/O and C wires. If the device is

connected to the N/C and C wires,

install the 333 on N/C and C wires.

Refer to Figure 7.

Door Strike Relay Operation

As soon as the user code sent

from the reader is veried by the

panel, the keypad door strike relay

activates for 5 seconds. During this

time, the access door connected

to Zone 2 must be opened to start

the programmed entry/exit timer

and zone Bypass (Soft-Shunt™) if

programmed and used.

Note: The 5-second door strike is panel programmable when the keypad is used on an

XR100/XR500 or XR150/XR350/XR550 Series panel. Refer to the panel programming

guide as needed.

Zone 2 Door Contact with Bypass (Soft-Shunt)

If the door being released by the 7873 keypad is protected, you can provide a

programmed bypass time by connecting its contact to Zone 2 (White/Red pair) on the

keypad and enabling the Bypass feature. See ZONE 2 BYPASS later in this document.

Door contacts may be N/C or N/O.

Zone 3 Request to Exit

You can also connect a N/O PIR (or other motion sensing device) or a mechanical

switch to Zone 3 (White/Orange pair) on the 7873 keypad to provide request to exit

capability. See ZONE 3 EXIT later in this document. When Zone 3 shorts, the keypad

relay activates for between 5 and 250 seconds. This REX time is programmable with a

default of 5 seconds. See ZONE 3 REX STRIKE TIME later in this document.

During this time, the user can open the protected door to start the programmed

Bypass entry/exit timer. If the door is not opened within 5 seconds, the relay restores

to its locked state.

Note: A Zone 3 Request to Exit is inhibited for 3 seconds after the keypad reads a card

and a door strike occurs. This is to allow area entry and pass under a REX PIR.

Keypad Backlighting

The touchscreen illuminates at the maximum brightness any time the display is

pressed. During an alarm condition, the touchscreen turns Red. When all alarm

conditions are cleared from the display, the keyboard, logo, and the user-selected

brightness is restored.

AC Power/Armed LED Operation

The LED indicates the Power and Armed status of the panel. Depending on the

operation, the LED displays in Red or Blue as listed in the table.

1K EOL

Green/White –

Connect Reader

Data 0

White – Connect

Reader Data 1

Orange – N/O

Gray – Common

Violet – N/C

Yellow/White

White/Yellow

Orange White

White/Orange

Red/White

White/Red

Brown/White

White/Brown

Black – Ground

Green – Receive Data

Yellow – Send Data

Red – Keypad Power

– Zone 4

– Zone 3

– Zone 2

– Zone 1

All Keypads

Zones 1 to 4

7800 Series Keypads

Model 333

Supressor

Common

–+

Magnetic Door Lock

DMP 505-12

Power Supply

Normally

Open

Normally

Closed

Surface and Backbox

Mounting Holes

Keypad Back

Figure 7: 5-wire Harness/Suppressor Installation

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