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closure information for encoding into the user bits.
HD9010TM-IRIG is in the time rctl mode is shown in Error! Reference source not found.. Section
3.8.1 describes the operation of the time rctl mode.
3.8.1. GPI Remote Control Mode
On Revision 2 versions, when the GEN MODE is set to time rctl the HD9010TM-IRIG allows the user to
encode remote control contact closure information in the RP188 ATC user bits. This feature is not
supported in Revision 1 units. This feature allows the user to use the six parallel remote control inputs
to set one of the six remote control user bit patterns. At the decoder end the 7721DD4-HD+GPI ATC
GPI Decoder module decodes the remote control user bits and outputs them on six open collector
outputs. When the HD9010TM-IRIG is operated in this mode the normal functions of all the parallel
remote control inputs are disabled.
In the time rctl mode, the GPI1 to GPI6 inputs on the Parallel remote control port are used to control the
remote control user bits while GPI 7 and GPI 8 retain their normal functions (ON AIR TALLY INPUT
and GEN SET as shown in Table 3-5. When the GEN MODE is set to any of the other modes, then the
GPI1 to GPI6 inputs revert to their normal functions as described in section 3.8.2. The parallel port pin
designations in remote control mode are shown in Table 3-5 below. Table 3-5 also shows the
corresponding output pins of the 7721DD4-HD+GPI decoder terminal block and the user bits that
control them. If the video is downconverted using a 7710DCDA or similar downconverter that passes
the timecode through to the downconverted output, the encoded GPI signals can be decoded by the
7721GPI-D SDI decoder, as shown in Table 3-5.
GPI
1
2
3
4
5
6
7
8
OPERATION
HD9010TM-IRIG HDTV Time Code Master / IRIG-B Reader Manual
HD9010TM-IRIG
PIN (IN)
1
8
4
9
5
2
7 (GEN SET)
3 (VCG DISABLE)
Table 3-5: Remote Control Mode GPI I/O Mapping
The pinout of the D connector when the
7721DD4-HD+GPI
7721GPI-D
PIN (OUT)
PIN (OUT)
11
12
13
14
15
16
Revision 2.1
GUB Data
byte 1
4
81
8
82
3
84
1
88
13
90
14**
A0
Page 3-21
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