Studio-technologies 48 Bedienungsanleitung PDF herunterladen (Seite 10)

Model 48 User Guide Issue 1, October 2000

Studio Technologies, Inc. Page 11

This is not a limitation as in most cases

only one telephone line will be connected

to each source jack. The ability to sup-

port two lines per jack is an option that

enables special installations to be easily

implemented.

Destination Connections

The Model 48 has 11 destination (output)

jacks, ten of which are located on the

back panel and one on the front. These

are designated as Destination A through

Destination E. Refer to Figure 6 for con-

nection details.

while the second jack could connect

to a jack located on an I/O panel of

an ENG vehicle.

One destination jack is located on the

front panel and is associated with destina-

tion E. This jack is provided for conve-

nience use and is not intended to be

permanently connected to another piece

of equipment. For example, for testing

purposes a telephone could be plugged

directly into this jack, eliminating the

need to access the back of the Model 48.

Another example might be to provide

a temporary telephone line connection

to portable equipment, such as a field

producers notebook computer modem.

Special

Applications

There are a number of special applica-

tions that can be served by the Model 48.

The following sections provide several

examples.

Model 770 IFB Telco Interface

The Model 770 is a combination mixer/IFB

controller available from Studio Technolo-

gies. The Model 770s IFB section con-

tains a telephone line interface that is

compatible with wet or dry signals.

Wet signals are defined as standard

telephone lines that have a DC bias signal.

(Generally 48V, and high-voltage ring-

ing.) Dry signals are defined as tele-

phone-line-associated signals that do

not have a DC voltage present. Often a

fax or modem adapter associated with a

cell phone may provide a dry telephone

signal. The Model 770s telephone inter-

face uses a standard 6-position modular

Figure 6. Model 48 Destination (Output) Jack

Connections

Each of these five destinations is associ-

ated with a group of front-panel push-

button switches. These five destinations

and associated switches can be thought

of as the Model 48s five switching chan-

nels. On the back panel, two jacks are

associated with each of the five destina-

tions. The two jacks associated with each

specific destination are internally wired in

parallel (multed), thus providing access

to the identical signals. This is provided

for installation flexibility. For example, one

of the jacks could connect to a telephone

coupler associated with an IFB system,

1 2 ... 5 6 7 8 9 10 11 12 13 14

Kommentare zu diesen Handbüchern

Keine Kommentare