Dolby Laboratories DM100 Instrukcja Użytkownika Pobierz pdf (Strona 13)

Dolby Model DP583 Frame Synchronizer User’s Manual

2-1

Chapter 2

Setting Up

This chapter covers all general connection and installation requirements for the DP583.

2.1 Unpacking

Several accessories are provided with the unit.

• Power cord (both US and European style)

• This User’s Manual

• A bag containing:

o BNC 75 Ω terminators, used on the Main Input and the Video Ref input (Part

No. 79127)

o Rack screws and washers

o Spare fuse 1 A (Part. No. 56016)

o Spare fuse, 2 A, used on the internal power supply (Part No. 56017)

o Hex wrench (to access inside of unit)

2.2 System Considerations

2.2.1 Digital Input and Output

The digital input and output connections on the DP583 may seem unfamiliar to the

first time user of a digital audio device. The Audio Engineering Society (AES)

created a standard electrical interface for digital audio with a balanced XLR

connector and 110 Ω impedance called AES3-1995. This interface was later

expanded to include an unbalanced BNC connector, 1 V peak-to-peak signal level,

and 75 Ω impedance; the new standard is known as both AES3-ID-1995 and SMPTE-

276M. The DP583 uses this new standard for digital audio, Dolby Digital and Dolby

E electrical interface connections.

Note: These signals must be properly terminated with a 75 Ω impedance at one

point only. We recommend a standard video terminator.

2.2.2 Video Reference

One of Dolby E’s most significant features is that the audio and video frame rates are

identical. The DP583 requires a reference video signal to re-frame the Dolby E audio

MAIN

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 35 36

Brak uwag

Dolby Laboratories DM100 Instrukcja Użytkownika Strona 13