GAI-Tronics 700 Series Посібник з монтажу - Сторінка 4

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GAI-Tronics 700 Series Page/Party

Step 4 — Installation of Inter-station Conduit and Cable

Inter-station cables are generally installed in cable trays or conduit. To assist in determining the conduit

sizes required, the outside diameters of the GAI-Tronics Corporation cables discussed in this publication

are listed below. Size and installation of conduit and cable must meet the requirements of applicable

electrical codes.

A ground conductor, with green/yellow insulation, should be included with cable in any area where no

conduit or non-metallic conduit is used. Non-metallic enclosures used with metallic conduit and cable

without a ground conductor require a bond between the conduit(s) and the ground terminal (point 3)

within the enclosure.

When using GAI-Tronics cable, attach wire lugs to each conductor and connect to the terminal in

accordance with either the color code shown on the applicable accompanying diagram or with special

drawings provided for this purpose.

Exception: Some cables have an orange "spare" conductor. Unless otherwise instructed, this

should be taped and not connected to the terminal strip(s) in the enclosures.

GAI-Tronics cable is considered to be a Class 1 cable (maximum voltage is less than 600 V). In a cable

tray, Class 1 cable may only be grouped with other Class 1 cables. Long runs of GAI-Tronics cable in

proximity to 600-volt cable may cause an undesirable amount of hum being induced onto the Page/Party

system's signaling lines. To reduce undesired hum, it is recommended that runs of cable over ½ mile be

separated from 600-volt cable by a minimum of 12 inches.

Step 5 — Installation of Amplifiers and Subsets

One of the many features of GAI-Tronics Page/Party

When the push-to-page switch is pressed at a particular station, the paging speaker connected to that

station is silenced, preventing acoustic feedback to the handset microphone. However, while the handset

is in use for the party line conversations, the paging speaker is still "live" to paging calls from other

stations.

For cases where the muting feature is not necessary or may be a disadvantage, it can be defeated as

outlined below:

1. Locate lugged violet wire attached to terminal point 7 (Mute) on the terminal block within the

enclosure for station to be modified.

2. Transfer lugged violet wire to terminal point 8 (Page L1).

After making any necessary muting changes, unpack and install the amplifier for each station. Also,

unpack remote subsets (for desktop, desk-edge or panel-mount stations) and plug each into the bottom

sides of the amplifier enclosure.

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Systems

Cable

Conductors

60038-101

60029-101

O.D.

0.60 in. (15.1mm)

0.68 in. (17.2mm)

system equipment is automatic speaker muting.

Pub. 42004-139D

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