SDC 920P EntryCheck™ Installation Instructions

Product Overview

The SDC 920P EntryCheck™ is a surface-mount digital keyless entry system designed for access control applications. It features backlit, easy-to-read keys and a heavy cast vandal-resistant housing. The mounting plate allows installation on rugged surfaces or standard single-gang electrical boxes.

The 920P supports up to 500 users, who can be assigned 4 to 6 digit PIN codes and/or HID 125kHz proximity access credentials. Access can be programmed to activate one or both relay outputs. The system includes a timed "anti-passback" feature to prevent credential reuse within a set waiting period.

Two solid-state LED indicators display system status: the left bi-color indicator shows power (red) and active relay (green), while the right indicator flashes yellow during programming mode. An internal sounder can be programmed to beep on key presses or output activation, with volume adjustable via an internal jumper.

The SENSE input offers two configurations: "Door Sense" for detecting forced entry or door ajar conditions via a normally closed door position switch, and "Inhibit" for disabling access via a normally open service switch or timer. The "Auto-relock" feature can automatically turn off the Main Relay output when the door is closed after access is granted, preventing tailgating.

A REQUEST-TO-EXIT input allows codeless activation of the Main Relay, Auxiliary Relay, or other programmable outputs using a normally open pushbutton.

The ALARM SHUNT signal can be programmed to activate relays or solid-state outputs to shunt alarm contacts on the access door/gate, preventing false alarms during authorized access.

The 920P EntryCheck™ operates on a 12 or 24V AC or DC power source. Its non-volatile EEPROM memory retains entry codes and programming during power loss. An internal jumper allows for master code reset. The Main Relay has a 5 Amp capacity, the Auxiliary Relay has a 2 Amp capacity, and two solid-state outputs (100 mA sinking) are available for various functions like alarm shunting or status signaling.

Features

• Keypad programmable
• 500 user codes
• 3 User Modes: PIN or Card, Card Only, Card and PIN
• 4 to 6 digit user codes
• 4 independent outputs
• 4 independent timers
• 2 Form C relay contacts
• 2 solid state open collector outputs
• Programmable entry codes to activate one or two relays
• Disable input
• Door sense input
• Request-to-exit/Reception input
• Keypad tamper lockout
• Timed anti-passback
• Anti-tailgate
• Two LED status indicators
• Tactile key feel
• Audible code entry verification
• 12V or 24V, AC or DC operation

Specifications

QuickStart Programming Examples

Important Note: User numbers and assigned personnel must be managed for potential deletion. Page 8 provides a user documentation table.

Programming requires entering programming mode, indicated by a slowly blinking yellow indicator. A brief green light confirms accepted programming; a red light indicates an error, requiring re-entry of the entire function. Programming mode exits after 30 seconds of inactivity or by pressing **#.

Set default parameters (first time use)

1. Enter programming mode: #9# 123456# (using default master code)
2. Set entry code length: 03# 4# (sets length to 4 digits)
3. Set main relay activation time: 21# 5# (sets time to 5 seconds)
4. Exit programming mode: **#

Assign a user (Card only)

1. Enter programming mode: #9# 123456#
2. Assign card to User 002 with PIN '9876', activate main relay: 06# 002# 9876# 9876# 1# (then present card)
3. Repeat for other users or continue.
4. Exit programming mode: **#

Assign a user (PIN only)

1. Enter programming mode: #9# 123456#
2. Assign User 003 with PIN '2580', activate main relay: 01# 003# 2580# 2580# 1#
3. Repeat for other users or continue.
4. Exit programming mode: **#

Test your new user

Present your card or enter an authorized PIN code followed by #. The green indicator should illuminate, and the main relay should activate for 5 seconds.

Deleting a user code

1. Enter programming mode: #9# 123456#
2. Delete User 002: 02# 002# 002#
3. Exit programming mode: **#

Wiring Diagram Description (Fig. 2): The wiring pigtail color code details connections for Keypad Power (Red/Black), Auxiliary Relay (Black/White/Orange), Main Relay (Yellow/White/Orange), Outputs #3 & #4 (Blue/Pink-Salmon/Black), Request-to-Exit (Violet/Black), Sense (Gray/Black), Door Position Switch (Black/Green/Violet/Black), and Ground. A caution is noted for AC powered units regarding secondary isolation from earth ground.

Wiring Examples

Keypad Wiring Example

The keypad is mounted near the door, with an electric door strike in the jamb and an optional door contact switch on the jamb. Wire gauge recommendations: 18 AWG or larger for lock power, 22 AWG or larger for signal connections.

Output Connection

Install a fail-secure electric door strike. Route two wires from the strike to the keypad. Connect the strike's (+) wire to the keypad's MAIN RELAY N.O. (yellow wire), the other strike wire to the keypad's PWR(-) (black wire). Connect the keypad's MAIN RELAY COM (white wire) to the keypad's PWR(+) (red wire).

Power Connection

Connect the power supply terminals to the keypad's PWR(+) (red) and PWR(-) (black) wires. Observe polarity for DC supplies; it is not critical for AC transformers. Caution: Ensure the secondary of an AC transformer system is isolated from earth ground.

Earth Ground

Connect the green earth ground wire to a proper earth grounding point (suggested 18 AWG wire) to prevent damage from static discharges.

Sense Input

The SENSE input (gray wire) can be configured as either "Door Sense" or "Inhibit".

• Door Sense: Use a normally closed door switch. Connect to SENSE (gray/E8) and COM (black wire). Detects forced entry or door ajar conditions.
• Inhibit: Use a normally open switch or timer. Connect to SENSE (gray/E8) and COM (black wire). Disables access when active.

Request-to-Exit Input

Wire a normally open pushbutton to the keypad's REX wire (violet/E6) and COM (black wire) terminals for codeless activation.

Solid State Outputs

Outputs #3 & #4 are open collector outputs (100 mA max) for activating indicators or sounders. Examples include lighting LEDs, sounding a beeper, or triggering an alarm panel zone.

Example #1: Output #3 lights an LED; Output #4 lights an LED and sounds a beeper. Circuits involve connecting the output wire to the component (LED/beeper) and its other terminal to common or power supply, with appropriate resistors for LEDs.

Example #2: Output #3 lights a lamp powered from an external source; Output #4 triggers a normally open alarm panel zone. This involves connecting the output to the device and potentially including an end-of-line resistor for alarm panel integration.

Factory Defaults

• Master Programming Code: 123456
• Entry Code Length: 4 digits
• Entry Mode: Card or PIN
• Request-to-exit Output Relay: No Output
• Alarm Shunt Output: Disabled
• Forced Entry Output: No Output
• Door Ajar Output: No Output
• Main Relay On Time: 02 Seconds
• Auxiliary Relay On Time: 02 Seconds
• Solid State Output #3 On Time: 02 Seconds
• Solid State Output #4 On Time: 02 Seconds
• Door Sense/Inhibit Input: Inhibit
• Keypad Lockout Output: Disabled
• Keypad Active Output: Disabled
• Beeper Sounds When Key Pressed: Yes
• Beeper Sounds During Relay #1: No
• Beeper Sounds During Relay #2: No
• Beeper Sounds During Output #3: No
• Beeper Sounds During Output #4: No
• Keypad Lockout Count: 3 Tries Before Lockout
• Anti-Passback Time: No Anti-Passback
• Auto-Relock: On

Basic Programming

When in Programming Mode, the yellow indicator blinks slowly. After selecting a command, it flashes rapidly while waiting for input. Green indicates acceptance; red indicates an error. Programming mode exits automatically after 30 seconds of inactivity or when **# is pressed.

Entering Programming Mode

Use the 6-digit Master Programming Code (default: 123456). Press #9# [Master Code]#.

Exiting Programming Mode

Press **#. A red indicator will light.

Re-entering a Command After a Mistake

If a red indicator appears, press *9# to clear the keypad and re-enter the command. Ensure you are in programming mode first.

Setting Entry Code Length

Press 03# Length#. Length can be 1-6 digits. This must be set before programming entry codes if changing from the default 4 digits.

Select Entry Mode

Press 05# Mode#. Mode options: 1=Card or PIN, 2=Card Only, 3=Card and PIN.

Adding a New User

• PIN Only Access: Press 01# User# Code# Code# Relay#
• Card and PIN Access: Press 06# User# Code# Code# Relay#, then present the card.

Parameters:

• User: 3-digit user number (001-500).
• Code: New entry code (1-999999, length depends on setting).
• Relay: Specifies which relay output is activated (1=Main, 2=Auxiliary, 3=Both, 10=Main toggled, 20=Auxiliary toggled, 30=Both toggled, 12=Main timed, Aux toggled, 21=Main toggled, Aux timed).

Leading zeros for codes are handled internally by the 920P based on the entry code length setting.

Output Toggle Mode

When an output is programmed for toggle mode, it alternates between ON and OFF with each activation. A toggled-on output remains ON until another toggle code, timed code, or REX input is used.

Adding Multiple Sequential Cards

Press 08# 1st User# Code# Code# Relay# Number of users#, then present the first card. The code will be the same for all users added sequentially.

Adding Multiple Non-Sequential Cards

Press 07# 1st User# Code# Code# Relay# Number of users#, then present each card sequentially.

Changing a User PIN

Press 04# User# New Code# New Code#.

Changing the 6-Digit Master Programming Code

Press 98# Master Code# Master Code#.

Advanced Programming Functions

• Erasing a Single User: Press 02# User# User#.
• Erasing Multiple Users (Sequential): Press 09# 1st User# Number of users#.
• Erasing All Entry Codes: Press 97# 000000# 000000#. This erases all entry codes.
• Configure Sense Input: Press 10# Input# (0 for Door Sense, 1 for Inhibit).
• Select Forced Entry Output: Press 11# Output# (0=No Output, 2=Auxiliary Relay, 3=Output #3, 4=Output #4).
• Select Door Ajar Output: Press 12# Output# (0=No Output, 2=Auxiliary Relay, 3=Output #3, 4=Output #4).
• Select Keypad Lockout Output: Press 13# Output# (0=No Output/Disable, 1=Main Relay, 2=Auxiliary Relay, 3=Output #3, 4=Output #4). Lockout is 60 seconds after too many incorrect attempts.
• Select Keypad Active Output: Press 14# Output# (0=No Output, 1=Main Relay, 2=Auxiliary Relay, 3=Output #3, 4=Output #4).
• Select Alarm Shunt Output: Press 15# Output# (0=No Output, 1=Main Relay, 2=Auxiliary Relay, 3=Output #3, 4=Output #4).
• Select Request-to-Exit Output: Press 16# Output# (0=No Output, 1=Main Relay, 2=Auxiliary Relay, 3=Output #3, 4=Output #4).
• Anti-Tamper Output: Press 17# Output# (0=No Output, 2=Auxiliary Relay, 3=Output #3, 4=Output #4).
• Main Relay On-time: Press 21# Seconds# (1-60 seconds).
• Auxiliary Relay On-time: Press 22# Seconds# (1-60 seconds).
• Solid-state Output #3 On-time: Press 23# Seconds# (1-60 seconds or 99=Toggle Mode).
• Solid-state Output #4 On-time: Press 24# Seconds# (1-60 seconds or 99=Toggle Mode).
• Door Ajar Timer: Press 25# Seconds# (1-60 seconds). Sets time door can be held open after access before Door Ajar output activates.
• Beep Sounds on Keystrokes: Press 40# Sound# (1=Yes, 0=No).
• Beep Sounds During Main Relay: Press 41# Sound# (1=Yes, 0=No).
• Beep Sounds During Auxiliary Relay: Press 42# Sound# (1=Yes, 0=No).
• Beep Sounds During Output #3: Press 43# Sound# (1=Yes, 0=No).
• Beep Sounds During Output #4: Press 44# Sound# (1=Yes, 0=No).
• Beep Sounds Anti-Tamper Activation: Press 45# Sound# (1=Yes, 0=No).
• Keypad Lockout Count: Press 50# Attempts# (2-7 attempts). Refers to Option 13 for enabling lockout.
• Anti-Pass Back Time: Press 51# Minutes# (2-4 minutes, 0=No Anti-passback). Sets time an entry code is inactive after use.
• Selects mode for Keypad LED Backlight: Press 52# Output# (0=Light always OFF, 1=30 sec when activated, 2=Light always ON).

Resetting Keypad

Master Reset

Caution: This clears all entry codes and resets all programmable options to factory defaults. The Master Code is NOT reset.

1. Disconnect power from the keypad.
2. Press and hold the * and # keys.
3. Apply power while holding the keys down until the red indicator flashes.
4. Release keys. Red and yellow indicators remain lit until completion, then the yellow indicator turns off.

Resetting the Master Code

The Master Code can be reset to the default 123456.

1. Remove the 920P from the wall and disconnect power.
2. Locate and remove jumper at JP2 (refer to page 2 diagram).
3. Re-apply power. A single beep will sound, and the yellow LED will flash momentarily.
4. Replace jumper on JP2. The Master Programming Code is now 123456.

Mounting

Surface Mount

Mount the unit at the designated holes using the supplied screws and hole expansion anchors.

Mounting to Single Gang Recessed Outlet Box

1. Secure the metal bracket to the box or wall using the provided slots.
2. Secure the keypad to the metal bracket using the supplied security screw. A rubber gasket is included for sealing.

User Documentation

Use the following table to document user information: