DMP Electronics Security Command 690 Specifikace Strana 2
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Digital Monitoring Products 690/690F/790/790F/791/793 Installation Sheet
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690/690F/790/790F/791/793 Installation Sheet Digital Monitoring Products
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Wiring Specications
When planning a keypad bus installation, keep in mind the following specications:
1. DMP recommends using 18 or 22-gauge unshielded wire for all keypad and LX-Bus circuits. Do Not use
twisted pair or shielded wire for LX-Bus and keypad bus data circuits. To maintain auxiliary power integrity
when using 22-gauge wire do not exceed 500 feet. When using 18-gauge wire do not exceed 1,000 feet.
Install an additional power supply to increase the wire length or add devices.
2. Maximum distance for any one circuit (length of wire) is 2,500 feet regardless of the wire gauge. This
distance can be in the form of one long wire run or multiple branches with all wiring totaling no more than
2,500 feet. As wire distance from the panel increases, DC voltage on the wire decreases.
3. Maximum number of devices per 2,500 feet circuit is 40.
Note: Each panel allows a specic number of supervised keypads. Add additional keypads in the
unsupervised mode. Refer to the panel installation guide for the specic number of supervised keypads
allowed.
4. Maximum voltage drop between the panel (or auxiliary power supply) and any device is 2.0 VDC. If the
voltage at any device is less than the required level, add an auxiliary power supply at the end of the circuit.
When voltage is too low, the devices cannot operate properly.
Refer to the 710/710F Module Installation Sheet (LT-0310) for more information. Also see the LX-Bus/Keypad Bus
Wiring Application Note (LT-2031).
Additional Power Supply
If the current draw for all keypads exceeds the panel output, you can provide additional current by adding a Model
505-12 auxiliary power supply. Connect all keypad common wires to the power supply negative terminal. Run a
jumper wire from the power supply negative terminal to the panel common terminal. Connect all keypad power
(+12 VDC) wires to the power supply positive terminal. Do NOT connect the power supply positive terminal to any
panel terminal. Refer to the 504-24 and 505-12 Power Supply Installation Guide (LT-0453) for more information.
Wiring a 12 VDC Access Control Reader on 791/793 keypads
To use 12 VDC readers with the 791/793 keypad, connect the Red and Black power wires from the reader to the
power wires from the panel. These connect in parallel with the keypad power wires. Connect the White data wire
from the reader (Data 1) to the White wire on the 5-wire keypad harness. Connect the Green data wire from the
reader (Data 0) to the Green/White wire on the 5-wire keypad harness.
1K EOL
1K EOL
1K EOL
1K EOL
Green/White – Connect Reader Data 0
White – Connect Reader Data 1
Orange – Door Strike Normally Open
Gray
– Door Strike Common
Violet
– Door Strike Normally Closed
Yellow/White
White/Yellow
Orange White
White/Orange
Red/White
White/Re
d
Brown/White
White/Brow
n
Black – Ground
Green
– Receive Data
Yellow – Send Data
Red – Keypad Power
– Zone 4
– Zone 3
Request to Exit
– Zone 2 Door Contact
– Zone 1
To Keypad Bus
Card Reade
r
Figure 2: 12 VDC Reader Wiring for 791/793 Keypads
- Keypads 1
- 791/793 Easy Entry™ Keypads 1
- Additional Power Supply 2
- Panic Key Options 4
- Internal Speaker Operation 4
- Keyboard Backlighting 4
- End-User Options 5
- Entering Alpha Characters 5
- Installer Options Menu 6
- Keypad User’s Guide 8
- ABC SECURITY 9
- ENTER CODE:> 9
- Access door opens 9
- Door Strike Relay 9
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