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電話 GAI-Tronics 491-204のPDF マニュアルをオンラインで閲覧またはダウンロードできます。GAI-Tronics 491-204 11 ページ。 Mine dial/page telephone

Model 491-204 Mine Dial/Page Telephone

Installation

Mount the Model 491-204 Mine Dial Telephone Station in a location where the handset can be reached

and where it is sufficiently visible. Four holes are provided for mounting to a wall or panel.

Connect the Model 491-204 Mine/Dial/Page Telephone to the card rack in the interface assembly as

follows:

•

Connect the L1 wire from the interface cabinet's card rack to the telephone's wide or silver-colored

terminal on the twist-lock plug.

•

Connect the L2 wire from the interface cabinet's card rack to the narrow or gold-colored terminal. A

rubber boot with a twist-lock connector mates with the connector on the station. This boot is

installed to form a seal to the station enclosure.

While each underground station will have a telephone extension number, that number is associated with

the line rather than the actual station.

For Example: If two separately connected stations at locations A and B are interchanged, the unit

brought from location B to location A will respond to the same telephone extension number as the

original unit at location A. Therefore, the telephone extension number should be marked at the location

and not on the unit.

A NEDA 926 Battery (12 V) must be installed in the enclosure. To install the battery, remove the battery

hold-down bracket.

1. Connect the battery's red wire to the positive terminal, and the green wire to the negative terminal.

2. Two brackets on the station are positioned so that the battery can only be installed in one direction.

The bracket terminal posts must be loosened to install the battery. When the battery is installed,

remember to re-tighten these posts.

3. Finally, reinstall the battery hold-down bracket.

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