Dolby Laboratories DP569 - Manual (Page 16)

Model DP569 User’s Manual Setting Up
2-2
2. Gently lift the top cover upward and towards the rear. Carefully set aside.
3. Reverse the above procedure when re-assembling the unit.
J40
J30 J25 J26 J28
J34
J31 J32 J40 J41
Ref
Input
Dig 1/2
Input
Dig 3/4
Input
Dig 5/6
Input
Terminated
Terminated
Not Terminated
Not Terminated
Open
Linked
Not Used
Aux Data Output
Termination
Signal Ground to
Chassis Ground Link
Aux Data Input
Termination
Remote Output
Termination
Remote Input
Termination
Figure 2-1 Jumper Locations
2.2.2 Digital Input and Output
The digital input and output connections on the DP569 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 DP569 uses this new standard.
Note: These signals must be properly terminated with a 75 Ω impedance on the last
device in the signal chain. External 75 Ω terminations for standard installations
are supplied within the packing kit for the DP569.