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SDC specializes in the design and manufacture of premium grade
access hardware products. As an established leader in the industry, SDC is the
largest independently owned manufacturer of access hardware in the U.S.A.
The SDC Product Line includes:
Electric Lever Locksets
Delayed Egress Locks
Access Controls
Power Supplies
Electric Strikes
Electric Deadbolts
Electromagnetic Locks
Exit Bars
Standalone Locks
Key/Push Switches
SDC is part of a select group of ISO 9001 manufacturers that practice an
internationally recognized quality management program based on continued
improvement of daily operations, product quality and customer satisfaction.
Moreover, in a recent survey SDC was rated #1 in quality.
SDC 928 Integrated Digital Keypad, Single Gang, 480 PIN Codes
928 SDC Integrated Digital Keypad, 480 Users, Metal Keys, 12/24V AC/DC, 2
relays, 2 aux outputs, panic, tamper lockout, anti-passback, forced door
SDC 928
Series Features
Up to 480, 1-6 digit codes programmable from the keypad
2 Form "C" relay outputs with programmable actions and activation times 2 open collector outputs with programmable actions and activation times Die-cast metal keys
Dual color status indicators to display access, lockout, and programming data
Audible and tactile feedback
Request-to-exit input
Timed Ant-passback
Door sense input for control of auto relock and door-ajar features
928 EntryCheck™
The SDC 928 EntryCheckTM is a stand alone digital keypad
designed to control access of a single entry point for facilities
with up to 480 users. Each user is assigned a personal
identification number (PIN). Keypad entry of a valid one to
six digit code activates one or both of the output relays which
releases an electric door lock.
Verification of key presses is provided by audible and tactile
feedback. If the user presses a wrong key, the * key can be
used to reset and start over. When a valid PIN is entered, the
LED indicator turns from red to green and the programmed
relay activates for a programmed period of time. Too many
incorrect PIN entries will lock out the keypad. Keypad lockout
is indicated by a yellow LED. An anti-passback feature
prevents use of the same code twice before a programmed
time period elapses. The EEPROM memory retains all entry
codes and programming during a power failure
The EntryCheckTM features four independent outputs with four
independent timers. Outputs #1 and #2 are Form “C” relay
contacts. Outputs #3 and #4 are solid-state open collector
outputs, short to common, which may be used to signal
forced entry, door ajar, lockout, shunt alarms, request to exit
or keypad active conditions.
Keypad programmable
480 user codes
1 to 6 digit user codes
4 independent outputs
4 independent timers
2 Form C relay contacts
2 solid state open collector outputs
Program entry codes to activate one or two relays
Disable input
Door sense input
Request-to-exit/enter input
Keypad tamper lockout
Timed anti-passback
Anti-tailgate
Two LED status indicators
Tactile key feel
Audible code entry verification
12 or 24V, AC or DC operation
SDC 928 Keypad - 480 Users
Operation
Outputs
Features
SECURITY DOOR CONTROLS
Door Sensor Switch
Electric Strike
2 wires for strike
2 wires for power supply
2 wires for door sensor
928 Keypad
System reset
Entry code length, 1 to 6 digits
Adding a new PIN
Erasing a single PIN
Erasing all PINs
Changing the master programming code
On-time for each of the four outputs
Beep sounds on key presses
Beep sound during each of the four outputs activation time
Keypad lockout after specified number of
incorrect PIN attempts, from 2 to 7
Anti-passback time period from 1 to 4 minutes or no
anti-passback protection
Anti-tailgate
Alarm shunt output
Forced entry output
Door ajar output
Door sense/inhibit input
Keypad lockout output
Keypad active output
The 928 EntryCheckTM includes a Door Sense/Inhibit Input
feature. When programmed for "Door Sense", a door
position switch wired into the input and detects a "forced
entry" or "door ajar" condition. When programmed for "Inhibit
Input", a maintained switch or automatic timer wired into a
the input will disable the activation of the main relay.
The EntryCheckTM also has a request-to-exit input for
connection to an exit switch and/or fire access key switch for
fire/emergency access. When access is granted, the shunt
option is activated shunting alarm contacts on the door or
gate. This prevents triggering of an alarm during authorized access.
SDC 928 Operating Features
Programming Options
Specifications
Dimensions 3”W x 5”H x 3”D
Voltage 12/24 VAC/DC
Current 10mA typical, 150mA maximum
Outputs Relay 1 - Form “C”, 5 Amps @ 24VDC
Relay 2 - From “C”, 1 Amps @ 24VDC
Outputs 3 & 4 - Switch to common,
100mA @ 30VDC
Temperature -20°F to + 130°F (-30°C to + 54°C)
Humidity 5% to 95% non-condensing
Additional SDC Keyless Door Entry Keypads:
SDC 917 Series
917 Integrated Digital Keypad, Single Gang, 120 PIN Codes
SDC 925 Series
925 Outdoor Integrated Digital Keypad, Cast Housing, Wall or Post Mount, 480 PIN
Codes
SDC 930 Series
930 Integrated Digital Keypad, Single Gang, 480 PIN Codes
SDC 931 KP-3U Series
931 Vandal Resistant Piezo Electric Digital Keypad and Controller. Narrow Mount,
6 PIN Codes
SDC 931 KP-4U Series
931 Vandal Resistant Piezo Electric Digital Keypad and Controller. Single Gang
Mount, 6 PIN Codes
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