User Manual for Potter ATTE-B Fire Alarm & Trouble Transmitter

Important Information

The Potter ATTE-B is an electric motor-driven McCulloh type transmitter designed for 12-24V AC or DC operation. It is intended to be connected to a local non-coded control unit to transmit coded alarm and trouble signals. Important constraints: The unit must be located within 3 feet of the non-coded control unit, and all interconnect wiring must be in conduit. The transmitter should be tested on a monthly basis to ensure proper operation.

Product Overview

The ATTE-B is suitable for Central Station, Proprietary, and Remote Station protected premises services. It features a shunt switch for "Shunt Non-Interfering" arrangements and includes both Yellow (Trouble) and Red (Alarm) LED indicators.

Installation

Installation must be performed by qualified personnel. Follow these steps:

1. Mount the ATTE-B enclosure securely.
2. Ensure all wiring between the non-coded control and the ATTE-B is in conduit.
3. The unit must be within 3 feet of the control unit.
4. Ensure the code wheel is configured before applying power (see Code Wheel Configuration).
5. Connect alarm and trouble inputs, central office line, earth ground, and shunt according to the wiring diagram.

Code Wheel Configuration

The code wheel must be prepared before the unit is powered:

1. Remove the code wheel and the metal bracket.
2. Cut the code wheel teeth to the desired code.
3. Reinstall the code wheel and bracket. Ensure the bracket tab is centered in the slot of the black opto device (U8) on the circuit board.
4. Hold the assembly in position and tighten the mounting nut.

Wiring Instructions

The enclosure provides multiple cable entry openings to segregate "Power Limited" fire protective signaling conductors from Class 1 "Non-power Limited" conductors.

• Power Inputs: Terminals 3 and 4 (Alarm), Terminals 5 and 6 (Trouble).
• Routing: Use the top center knockout for wires from terminals 3 through 9. Use the lower left-hand side for wires from terminals 10 through 12.
• Tamper: Run cover tamper wire under the P.C. board to terminals 1 and 2.

Operation

The transmitter responds to voltage inputs from the non-coded control unit:

• Alarm Signal: Applying power to terminals 3 and 4 triggers 4 rounds of the coded signal (Red LED illuminates).
• Trouble Signal: Applying power to terminals 5 and 6 triggers 1 round of the coded signal (Yellow LED illuminates).
• Restore: Removing power from terminals 3 and 4 causes the unit to transmit 1 round of the restore signal.
• Reset: After a trouble condition is restored, manually operate the Reset switch on the ATTE-B to restore the transmitter to the normal position.

Maintenance

The transmitter should be tested monthly. Verify that the central office receives clear and intelligible signals during testing. Ensure the cover is closed and the tamper switch is engaged for normal operation.