Bosch Appliances D2071A manual Phone Line Trouble Relay, Primary Power Supply, Wiring

D2071A Operations & Installation Guide 2.0 Installation

Figure 7: Relay Sockets

		1
11
12
13
14
15	K5	K6
16
17
18

2

1 - Trouble relay 2 - Alarm relay

2.4.2Wiring

Connect only low voltage power sources and devices to Terminals 16, 17, and 18. Do not use the D2071A Standby Battery to provide a power output for the circuit.

2.5Phone Line Trouble Relay

Use Terminals 13, 14, and 15 for Phone Line Trouble Relay connections.

To use the optional Phone Line Trouble Relay, install a D136 Relay in socket K5. The D136 has a Form “C” dry contact, rated at 2 A maximum current at 30 VDC (power from independent supply). The relay activates (reverse state) when a faulted condition appears on either the primary or alternate telephone lines, or when a communication failure occurs.

The Phone Line Trouble Relay activates whenever the Phone Line Trouble Buzzer sounds. Refer to Section 1.8.6 Phone Line Trouble Buzzer on page 7 for details on relay activation and restoral.

2.5.1Installation

To install a D136 Relay into the K5 socket (labeled “TROUBLE RELAY”):

1.Slide back the D2071A cover.

2.Place the relay into the socket with the pins oriented as shown in Item 1 in Figure 7.

3.Install the relay flush left or right.

2.5.2Wiring

•Terminal 14 is the common (C) terminal.

•Terminal 13 is the normally closed (NC) terminal.

•Terminal 15 is the normally open (NO) terminal.

In a normal state, Terminals 13 and 14 have continuity. When activated, Terminals 14 and 15 have continuity.

Only connect the low voltage power sources and devices to Terminals 13, 14, and 15.

Do not use the D2071A standby battery to supply power for the circuit. In some slave communicator applications, the Phone Line Trouble Relay (Terminals 13 to 15) on the D2071A can be connected to a trouble zone input on the FACP.

2.6Primary Power Supply

Use Terminals 1 and 2 for primary power supply connections.

Power the D2071A Control Panel using a 12 VAC or 20 VA transformer and standby battery. You can also connect the D2071A to the 24 VDC output of an FACP. Use either method for NFPA 72 applications.

Do not connect the D2071A to a 12 VDC power supply of an existing FACP. Use the transformer and battery for 12 VAC Mode.

Parallel Activation on Powerup: The Phone Line Trouble Buzzer, Phone Line Trouble Relay, and Phone Line LED briefly activate on AC or battery powerup to indicate the DACT is operational.

2.6.112 VAC Mode

Connect a 12 VAC, 20 VA transformer to Terminals 1 and 2 using 18 AWG (1.2 mm) stranded wire, maximum length 50 ft (15.3 m). Commercial fire applications require the D8004 Transformer Enclosure for the D1220 Transformer or the D2071AmC Kit.

The hardwire transformer mounted in the D4103R Enclosure, included in the D2071AC Kit, replaces the D1220 Transformer. Ensure the 110 VAC or

120 VAC power source is turned off when connecting the black and white transformer leads to the source. Connect the yellow leads from the transformer to Terminals 1 and 2.

Bosch 09/04 74-06200-000-F 1 3