Transfer Rates; Electrical Specification For D-Net Transfers; Aes-3Id - 360 Systems DigiCart II Plus DR-2750 Owner's Manual

Transfer Rates

SAMPLE RATE
48K
44.1K
32K

Electrical Specification For D-Net Transfers

File transfers may be accomplished via either of two digital audio interfaces:
§
AES-3ID (Proposed AES standard, 75Ω impedance, BNC connector)
§
AES-3 (AES standard, 110Ω impedance, XLR connector)

AES-3ID

The AES-3ID interface has been designed to operate using coaxial cable with a nominal
impedance of 75Ω terminated with a male BNC. When the coax is directly connected
from a DigiCart/II Plus output to the input of another DigiCart/II Plus, the internal
electronics of the machines create a doubly terminated cable at 75Ω. If other devices are
inserted in the data path (such as routers or switchers) the user should ensure that the
transmitting DigiCart/II Plus drives a nominal impedance of 75Ω and that the receiving
DigiCart/II Plus is being driven by an output presenting a nominal 75Ω output
impedance. This will serve to maintain correct signal amplitude and to minimize
transmission errors caused by signal reflections from the far end of the cable. Use of 'T'
connectors to drive multiple DigiCart/II Pluses is not recommended as this would violate
the cable termination requirements.
The AES-3ID interface has been successfully tested using 150m of Belden 8281, 75Ω
coaxial cable.
AES-3
The AES-3 interface has been designed in compliance with the AES-3 recommended
practice for serial transmission format for two-channel digital audio data. The connectors
required for this interface are described in IEC 268-12, and are XLR three-pin
connectors. The pin usage is:
§
PIN 1: CABLE SHIELD OR SIGNAL EARTH
§
PIN 2: SIGNAL
§
PIN 3: SIGNAL
Note: The polarity of pins 2 and 3 is not significant.
File Transfer Network
74
D-NET TRANSFER RATE
FORMAT
REAL TIME TRANSFER
AC-2
STEREO
MONO
STEREO
MONO
STEREO
MONO
vs.
8:1
1.5:1
3:1
1.6:1
3.2:1
2.25:1
4.5:1
DigiCart/II Plus Owner's Manual