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KI-1856C Rauland RANGER

Head End—

Installation

Page 6 of 55 (Jun-98)

audio output needs to be boosted (e.g., the Pioneer Laser Disc players—

RANLASER

For devices without audio, select “600 Ω.”

Route a cable from “Composite Video Out” (located on the back of the board) on the

RANAVMS2

to an input jack on the video matrix switch. Note the input number that

you have chosen.

Adjusting the RANAVMS2

Once the system is operational and classrooms are on-line, it is important to adjust

the

RANAVMS2

multiplexer so that all of a system's media resources play at the

same relative volume. We suggest using the operator console as your output source,

because it is likely to be adjacent to the multiplexer module that you are adjusting.

To adjust the

RANAVMS2

Turn on the media device and load it with the appropriate media. Start the unit and

locate a loud passage.

Adjust the Audio Level on the multiplexer module so that the “Overload”

LED

only

comes on at very infrequent loud passages. If there is no audio source, turn this control

completely counterclockwise.

RANFT4/RANFT4FM or

RANFT1/RANFT1FM Fiber Transmitter

Cards and Modules

V In

Fiber Out

These transmitter cards convert a coax signal to fiber. The

RANFT4

is an

Quad

Fiber Transmitter Card that transfers a baseband audio/video signal from the video

switcher over a multimode fiber-optic cable to a classroom (the

RANFT1

is a single

module). In fiber-optic based systems one

RANFT4

is required for every four outputs

(classrooms). While these modules are not required for baseband coax systems, it is

possible to have some outputs that are fiber optic and some that are coaxial. The

RANFT4FM

and

RANFT1FM

are

versions of the

RANFT4

and

RANFT1

. Each

transmitter mounts in the

RANCAGE

Card Cage, and requires 12

VDC

at 280 m

Parts Required

RANCAGE

Card Cage (to mount the

RANFT4

RANFT4FM

)

RANFBINT

Interface Box (to mount the

RANFR1

RANFR1FM

)

Associated Equipment

1 Multimode Fiber-Optic cable

BNC-

to-

BNC

75Ω video cable (refer to drawing

2375) for each of the four channels

of the

RANFT4

Installation

If it is not already off, remove the front cover of the

RANCAGE

card cage.

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