Hubbell Electric Heater Company TI984 Page/Party Connections, Remote Connections

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MODEL TI984 TELEPHONE INTERFACE	42004-071F

If using a dc source, either a battery and/or a UL-approved power supply/battery charger should be used. The power supply must be capable of providing at least 1.4 amperes dc @ 23-28 V. Connect the positive wire to terminal 1 and the negative wire to terminal 3 (the Power Selector switch may be in either position). See Figure 4 for wiring details. Terminal 4 should be connected to the earth ground for maximum safety.

For convenient wiring, GAI-Tronics offers an 8-conductor cable, Model 60038-101. This cable has three 14 AWG conductors for power and ground and five 18 AWG conductors for page and party line audio connections and a spare. If another cable is used, note that the audio wires must be twisted pairs but need not be shielded.

Note: Each power input is fuse protected. The 2 fuses are located on top of the power supply shield. Both fuses are rated ½ amp. See Figure 1 for the location of these fuses.

Page/Party® Connections

The TI984 needs to be connected to both the page line and the party line of the Page/Party® system. See Figure 5.

Party line connections should be made to terminals 13 and 14 as shown in Figure 5, and on the connection diagram printed on the power supply circuit board (rear enclosure).

Figure 5. Page/Party® Connections

In a multi-party system, one of the party

lines must be selected as the designated party line. The TI984 only connects to the designated party line.

Note: The 33-ohm line balance resistor must be removed from the designated party line of the Page/Party® system. This resistor is generally located in a separate assembly called a line balance network. Only the line balance resistor for the party line should be disconnected. Page line connections should be made to terminals 15 and 16.

Remote Connections

The ACCESS, RESET, and DAY/NIGHT switches on the TI984’s front cover can be connected at remote locations if the unit is located away from the switchboard or primary user. See Figure 6.

The ACCESS switch manually connects between the Page/Party® system and the outside telephone line. The RESET switch can be used to disconnect calls. The DAY/NIGHT switch is used to switch the unit between the two modes of operation.

Note: A programming change is required to use the remote DAY/NIGHT switch.

	Day Mode	Night Mode
In Use	Constant On	Flashing, mostly on
Not in Use	Constant Off	Flashing, mostly off

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05/03