Chapter 2. Installation and System Checkout
2-9
DACT
The DACT connection is made from the Main System Board
to the public telephone system via terminals TB5-1/TB5-2
and TB5-5/TB5-6. Wiring information is shown in
Figure 2-9.
• The DACT requires two telephone line connections to
meet NFPA72 requirements. Wire from TB5-3/TB5-4
and TB5-7/TB5-8 to an RJ-11 or other Telcom wiring
block for connection to other telephone equipment. The
DACT will seize control of the telephone line (if neces-
sary) to transmit emergency messages. When wired as
shown, the DACT will properly control access to lines
in an emergency.
• Wire from Telcom equipment to TB5 using 18 AWG to
24 AWG.
• All DACT wiring is supervised.
• Digital Alarm Communicator Receiver (DACR) com-
patibility is shown in Table 2-3.
• If wiring is routed outside the building, use of a listed
secondary protector is required. Use Simplex 2081-
9028 or 2081-9044. A protector must be installed at
each building exit/entrance. Each 2081-9028 adds .2
ohms wiring resistance. 2081-9044 adds 6 ohms wiring
resistance. Use of 2081-9044 will greatly reduce wiring
distance.
Figure 2-9 DACT Wiring
DANGER
HIGH VOLTAGE
IN THIS AREA
DACT TELEPHONE
CONNECTIONS
LINE 2 TELCO SERVICE IN
LINE 1 TELCO SERVICE IN
WIRE TO MODULAR JACK
TO USE LINE 1 FOR
OTHER TELCO EQUIP.
WIRE TO MODULAR JACK
TO USE LINE 1 FOR
OTHER TELCO EQUIP.
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 10
TB1 TB2 TB3
MAIN SYSTEM BOARD - CONVENTIONAL (MSB - C)
TB5
1 2 3 4 5 6 7 8
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