MultiDyne HD-3500 Series User Manual
Page 6
Instruction Manual, HD-3500 Series
FEATURES and OPERATION 3
REV F, April 1, 2015
J10 from the 1-2 to the 2-3 position, see figure 2 with default setting. Non-SMPTE standard
signals should automatically put the reclocker into bypass mode; however, in some
instances, if the signal has components close to the SMPTE frequencies, there may be
glitches on the operation. To void this, there is another jumper, J5 that when inserted will
force the reclocker into bypass mode. The default setting for J5 is open as shown below.
Audio Transport
This unit can transport two balanced stereo pairs (4 monos), or two AES channels of
high quality audio. The unit automatically detects if AES audio is present in each channel to
be selected, otherwise the corresponding analog stereo pair is selected. The AES channels
can be set for 110 ohms balanced input mode or 75 Ohms singled ended input (see table 1).
The analog stereo pairs can be set for different full scale (FS) levels using a dip switch, 600
ohms input mode, or +6dB compensation (see tables 2 and 3). The audio LEDs indicate
three possible statuses: constant blinking green indicates AES signal is present, green
indicates analog level is present with a level from -8dBFS to -1dBFS, and red indicates
clipping. Even if a tiny clip is detected, the red LED is held for a fraction of a second. In
addition to these main audio channels, there is a bidirectional stereo channel for intercom
applications. This channel has unbalanced inputs, and a maximum audio range of +4dBuFS
Sw 1
Position
Function
Setting (Default values in Bold)
1
Data 1 Type
on=RS232
off=RS422
2
Data 2 Type
on=RS232
off=RS422
3
Data 3 Type
on=RS232
off=RS422
4
Analog Sampling
on=48KHz
off=96KHz
5
AES 1 Input
on = 75 Ohms AES3id Single Input
off = 110 Ohms AES3 Bal. Input
6
AES 2 Input
on = 75 Ohms AES3id Single Input
off = 110 Ohms AES3 Bal. Input
Table 1. Settings for AES Audio and Data Types
Figure 2. Default settings and placement for J10 and J5