7800/7700 MultiFrame Manual
7812UDXD Series 3G/HD Up/Down/Cross Converter with Simultaneous Dual Format Outputs and AES I/O
Revision 1.1.1
Page - 13
3.3.
GPIO CONNECTOR
There are 4 General Purpose Inputs/Outputs (GPIOs) on the 7812UDXD series modules. Each GPIO can
be configured to be an input or can be configured to be an output. These GPIOs are interfaced using a
15-pin DB connector and an associated breakout cable (cable part # WPAES8-BNCM-9W-6F). NOTE:
The GPIO breakout cable is not included with the module when purchased. The Pin-out of this connector
is as follows:
GPIO DB CONNECTOR
DB-15
Pin
Name
Description
Colour
1
GPIO1
General Purpose Input /Output #1
Red
2
LTC out
External LTC out
Green
3
GPIO2
General Purpose Input /Output #2
Blue
4
GPIO4
General Purpose Input /Output #4
Purple
5
LTC IN2/6 Hz
External LTC IN 2 / 6 Hz
Orange
6
LTC IN1
External LTC IN 1
White
7
GND
General Purpose Input /Output #6
A2 BNC PIN
8
GPIO3
General Purpose Input /Output #3
Yellow
9
GND
Ground
- -
10
GND
Ground
- -
11
GPIO5
General Purpose Input /Output #5
A1 BNC PIN
12
GND
Ground
- -
13
GND
Ground
- -
14
GND
General Purpose Input /Output #8
A4 BNC PIN
15
GND
General Purpose Input /Output #7
A3 BNC PIN
Shell
GND
Ground
- -
Table 3-1: GPIO Connector Pinout
When a particular GPIO is configured to be a GPI, the following interface shall apply:
GPI
GND
GPI
Command
to
internal
circuit
3.6 K
+ 5
VDC
Figure 3-4: GPI Input Circuitry