Genlock Reference; Auxilliary I/O; Aes Audio Connections (7712Hdc-Sn-Eaes4 Version); Table 1: 9 Pin D Connector Pin Definitions - evertz 7700 Manual

7700 MultiFrame Manual
7712HDC HD Broadcast Quality Down Converter
MON OUTPUT
monitor grade analog composite video. They can be used to conveniently view the on screen
menu and status display on a low cost analog monitor.
ANALOG OUTPUT
downconverted input video as broadcast quality analog composite video.
2.2.

GENLOCK REFERENCE

For proper synchronization of the output video, the downconverter must be locked to a genlock signal of
the output video format. In addition, the input video must be clock-locked to the genlock signal.
GENLOCK These two BNCs form a loop through for connecting an analog genlock reference. The
genlock signal may be NTSC or PAL colour black (the same as the output video format),
and is auto-detected by the module. Jumper J9 on the APB3FMTCON submodule selects
whether the reference input is terminated to 75 ohms or high impedance (default). (See
section 7.3). The output video can be timed with respect to the genlock video using the H
Phase Offset and V Phase Offset menu items. (See section 6.3.3) When no Genlock is
provided, the output video is timed with respect to the input video.
2.3.

AUXILLIARY I/O

On the 7712HDC-S a 9 pin D connector labeled AUX I/O contains 2 GPI inputs, a 6 Hz input and 1 GPO
output. On the 7712HDC-SN-EAES4 a 9 pin D connector labeled AUDIO AND AUX I/O contains 2 GPI
inputs, a 6 Hz input, 1 GPO output and 4 unbalanced AES outputs. The connector pinout is shown in
Table 1.
Pin
#
1
2
3
4
5
6
7
8
9
** AES outputs on EAES4 version only.

2.3.1. AES Audio Connections (7712HDC-SN-EAES4 version)

Four unbalanced AES outputs are provided on the 9 pin D connector. These outputs are for unbalanced
AES signals conforming to SMPTE 276M. Two groups of embedded audio from the HD input are extracted
and re-embedded on the output video. The transferred audio is also output as four AES channels.
7712HDC-4
These two BNC connectors are used to output the downconverted input video as
(7712HDC-SN-EAES4 only) These two BNC connectors are used to output the
Name
AES1 AES 1 Output **
GPO General Purpose Output – Not used at this time
Gnd Signal Ground
GPI2 Select User Preset 2
AES4 AES 4 Output**
6 Hz 6 Hz sequence input
AES2 AES 2 Output**
AES3 AES 3 Output**
GPI1 Select User Preset 1

Table 1: 9 Pin D Connector Pin Definitions

Description
Revision 1.2