5700MSC-IP
IP Network Grand Master Clock & Video Master Clock System
Page - 6 Revision 0.2
the 5700MSC-IP will be only as good as that of the reference input. The phase of the outputs
will be aligned to that of the reference input.
• Internal – The 5700MSC-IP will free run on its internal high stability ovenized oscillator. Select
this option if no external reference is available to the unit.
• 1588 – The 5700MSC-IP can synchronize with a PTP master to determine a frequency
reference.
There are three other menu items that control how the 5700MSC-IP locks to its reference. These are
Genlock Range, Genlock Source, and Lock type. Press the HELP button for a short description on
what each menu item does.
1.1.5. Selecting and Connecting Time References
Once the desired frequency reference has been selected and the antenna/reference connections have
been made, the time reference should be selected. The time reference is how the 5700MSC-IP
obtains time and date for the system clock. Press the INPUT button to access the input menu. Return
to the root level by pressing ESC a few times. Select the Time menu using the control knob and press
SELECT. Use the Reference Src menu item to choose a time reference for the unit. There are other
menu items that control how the 5700MSC-IP handles the time reference. Press the HELP button to
identify the function of each item.
• GNSS – When a GPS or GLONASS receiver is connected to the unit, it can obtain continuous
time and date updates from GNSS. If the frequency reference has been set to one of the GNSS
modes, the time reference will also be forced to GNSS. However it is also possible to use a
frequency reference other than GNSS (such as video) and still use GNSS as a very accurate
time reference. See note above regarding GLONASS operation.
• VITC – The 5700MSC-IP will look for Vertical Interval Time Code on the selected line of a black
burst signal that is applied to the reference loop input, frame reference 1, or frame reference 2.
It can also decode date information from the user bits in several different formats. In order to
use VITC as a time reference, the frequency reference must first be set to Video.
• None – The 5700MSC-IP will not acquire time from any outside source. The time and date must
be manually entered using the front panel in the GENERAL menu. The high frequency stability
of the unit and battery backup will ensure the 5700MSC-IP keeps fairly accurate time.
• SNTP – The 5700MSC-IP can synchronize once daily to time and date from an NTP server.
• 1588 – The 5700MSC-IP can synchronize with a PTP master to determine the time and date.
1.1.6. Configuring PTP
The 5700MSC-IP may be configured to provide Precise Time Protocol (PTP), which is designated as
IEEE1588-2008, using the default IEEE1588 Annex J profile, the SMPTE 2059-2 Professional
Broadcast Environment profile or the AES 67 profile. Furthermore, the 5700MSC-IP may be configured
to function in roles of PTP GrandMaster, PTP Master, PTP Slave, and PTP Boundary Clock. The
following sections outline configuration of each of the PTP parameters and options.
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