Instructions

16
10. SETTING UP A SPLIT-DECODED KEYPAD SYSTEM
Power Supply of The System
DK-2800 MK-II keypads consist of 12V/DC, 12-24V/DC and 12-24V AC/DC operation voltages. Please check the
operation voltage of your keypad before applying power to it.
• In split-decoded operation, the keypad system MUST be DC operation. AC operation is not allowed.
• For keypads of 12V/DC operation, both keypad and split-decoder are required to operate at 12V/DC.
• For keypads of 12-24V/DC or 12-24V AC/DC operation, both keypad and split-decoder are required to operate at
12-24V/DC.
System Connection
DATA I/O
(+) POWER
(–) GND
SERVER KEYPAD
ANY DK-2800 MK-II KEYPAD
DECODER
DA-2800 or DA-2801
ELECTRIC LOCK
INSIDE THE HOUSE
OUTSIDE THE HOUSE
Set Your Keypad to Server Mode
Set your DK-2800 MK-II keypad from keypad mode to SERVER mode.
See “OPERATION MODES -- Location 94” on page 50 for the programming procedures.
Link Up Connection of Server Keypad and Split-decoder
Three terminals (+), (-) and Data I/O can be found in your DK-2800 MK-II keypad. Connect them with the split-decoder
for power and data link-up. No connection is required for other terminals
• Connect the Data I/O ports of the Decoder unit (Terminal 4) and the Keypad unit with wire to link up the
communication of the two units.
• Connect the Keypad’s (+) power input terminal to the Decoder’s Keypad PWR supply (Terminal 3) that supplies
power to the keypad with current limit protection of 500mA max.
• Connect the (-) Common Ground (Terminal 2) of the Keypad unit and the Decoder unit together making up a return
path for the data and the power source.
• This is an optional connection. There is also a pair of Tamper N.C. terminals in your keypad; which is a Normally
Closed dry contact. It is open circuit while the keypad is separated from its box. Connect these N.C. terminals to the
tamper zone (Terminal 12 and Common GND) of the split-decoder to make alarm to alert sabotage.