Operating basics
TIME (timecode
) LED indicator. The TIME (timecode) LED indicates the status of
the timecode function. The state of the TIME LED depends on whether a GPS7
module is installed in the mainframe. The following table shows the states of the
TIME LED for the different mainframe timecode signal configurations.
Table 2-2: States of the TIME (timecode) LED indicator
GPS7 module
installed
No GPS7 modu
le installed
Selected ti
mecode source
Timecode st
atus
TIME LED sta
te
Timecode
Status TIME LED sta
te
Internal
GPS7 insta
lled
Off
NA
Off
Internal “Program Time”
selected
Off
NA
Off
External
(GPS/GLONASS, VITC, or
LTC)
1
“Time of D
ay” selected
Solid gre
en
NA
Off
External (LTC only) SMPTE standard Solid green
NA
Off
External (LTC only) Outside SMPTE
standard
Solid yellow
NA
Off
External (GPS/G LONASS, VITC, or
LTC)
1
Missing, discontinuous,
badly timed, wrong
FPS in
External Time
source
Solid red
NA
Off
1
Earlier versions of the GPS7 module included a receiver that could use only GPS signals. Later versions of the module include a receiver that can use GPS
and/o
r GLONASS signals. (See page 3-102, How to determine which GPS receiver is installed in your GPS7 module.)
2–4 TG8000 Multiformat Test Signal Generator User Manual