7700
MultiFrame
Manual
7707MTA-HD Multi-Signal HD/SD, AES, and Control Fiber Transmitter
Page-4
Revision 1.3
Figure 2-2: 7707MTA-HD Rear Plate & Pin Out (1RU Version)
2.1.1. Electrical Signal Connections
HD/SD INPUT
:
Input BNC connector for serial digital video signals compatible with HD-SDI
(SMPTE 292M), SD-SDI (SMPTE 259M-C), SDTi (SMPTE 305.2M) and DVB-ASI
standards. This input provides adaptive equalization for up to 100m of industry
standard Belden 1694A cable, at 1.485Gb/s. At 270Mb/s, this input provides
adaptive equalization for up to 300m of Belden 1694A cable. See section 3.1 for
video input specifications
.
HD/SD OUTPUT:
Reclocked, level-restored, loop-back output BNC connector for serial digital video
signals compatible with HD-SDI (SMPTE 292M), SD-SDI (SMPTE 259M-C), SDTi
(SMPTE 305.2M), or DVB-ASI (EN 500083-9) standards. See section 3.2 for video
output specifications
.
AES IN:
AES audio input connections of the removable terminal block.
The 7707MTA-HD
accommodates four AES audio channels, designated as A1, A2, A3, and A4. Each
of these four channels has a positive and negative terminal associated with it, and is
able to accept balanced or unbalanced AES without card configuration. Balanced
and unbalanced audio signals are connected as follows:
Balanced
-
Connect positive and negative audio signals to the corresponding
positive and negative terminals of the 7707MTA-HD. This connection arrangement
yields a nominal 110
Ω
input impedance for balanced audio signals.
Unbalanced
-
Connect unbalanced audio signals to the positive input terminal of
the 7707MTA-HD. Leave the negative input terminal unconnected. This connection
arrangement yields a nominal 75
Ω
input impedance for unbalanced audio signals.
