AVN-GMC
IEEE1588 PTP Grandmaster Clock
with GPS Receiver
HANDBOOK
Manufacturers of Audio Products for AV,
Installed Sound, Broadcast Radio & Broadcast TV
AVN-GMC Handbook
Contents & Figures
For the latest Sonifex handbook information please visit the
Sonifex website at www.sonifex.co.uk
Contents
Product Warranty - 2 Year Extended i
Sonifex Warranty & Liability Terms & Conditions i
1. Definitions i
2. Warranty i
Unpacking Your Product ii
Repairs & Returns iii
CE/UKCA Conformity iii
Safety & Installation of Mains Operated Equipment iii
Voltage Setting Checks iii
Power Cable & Connection iii
WEEE Directive iv
Atmosphere/Environment iv
1. AVN-GMC IEEE1588 PTP Grandmaster Clock with
GPS Receiver 1
Introduction 1
Front Panel Display & Indicators 2
Front Panel Indicators 2
Display & Spinwheel 3
Power Button 3
GPS Operation 3
Rear Panel Connectors 4
Front Panel Menu Navigation 5
AVN-GMC Menu Tree 6
2. Webserver & Unit Discovery 8
Bonjour Network Discovery 8
Standard Webpage Layout 9
Status Page 10
Status Indication 10
Device Status 11
Webpage Parameter Details - Device Information
12
AVN-GMC Handbook
Contents & Figures
Contents continued… Figures
Device Information 12
Network Information 12
GPS Satellite Information 12
Network Settings 13
Network Settings 13
PTP Profiles 14
PTP Profiles 15
Device Settings 16
Device Settings 16
Time Settings 17
Time Settings 17
Misc Settings 18
Misc Settings 18
Auto Save on Page Exit 18
Factory Defaults 18
System 19
Update Firmware 19
3. Grandmaster Clocks, AVN, RAVENNA & AES67 20
4. Technical Specification For AVN-GMC 21
Fig 1-1: The AVN-GMC Front Panel 1
Fig 1-2: Front Panel Indicators 2
Fig 1-3: Display & Spinwheel 3
Fig 1-4: Default Screen Display 3
Fig 1-5: AVN-GMC Rear Panel 4
Fig 1-6: AVN-GMC Menu Tree (V2.1) 7
Fig 2-1: Standard Webpage Layout 9
Fig 2-2: AVN-GMC Status Screen 10
Fig 2-3: AVN-GMC Device Information Screen 12
Fig 2-4: AVN-GMC Network Settings Screen 13
Fig 2-5: AVN-GMC PTP Profile Screen 14
Fig 2-6: AVN-GMC Device Settings Screen 16
Fig 2-7: AVN-GMC Time Settings Screen 17
Fig 2-8: AVN-GMC Misc Settings Screen 18
Fig 2-9: AVN-GMC System Screen 19
Warranty Registration
Sonifex Limited ● 61 Station Road ● Irthlingborough ● Northamptonshire ● NN9 5QE ● United Kingdom
Tel: +44 (0)1933 650 700 ● Fax: +44 (0)1933 650 726 ● Email: technical.support@sonifex.co.uk ● Internet: www.sonifex.co.uk
Warranty
Register Online for an
Extended 2 Year Warranty
As standard, Sonifex products are
supplied with a 1 year back to base
warranty.
If you register the product online, you
can increase your product warranty to 2
years and we can also keep you
informed of any product design
improvements or modifications.
To register your product, please go online to www.sonifex.co.uk/register
Warranty Registration
Sonifex Limited ● 61 Station Road ● Irthlingborough ● Northamptonshire ● NN9 5QE ● United Kingdom
Tel: +44 (0)1933 650 700 ● Fax: +44 (0)1933 650 726 ● Email: technical.support@sonifex.co.uk ● Internet: www.sonifex.co.uk
Warranty
Product Warranty - 2 Year Extended
Note:
Sonifex Warranty & Liability Terms & Conditions
1. Definitions
2. Warranty
Warranty
CE Conformity
Unpacking Your Product
Warranty
CE Conformity
Item Quantity
Repairs & Returns
Safety & Installation of Mains
Operated Equipment
Voltage Setting Checks
Power Cable & Connection
Safety & Installation
1 AVN-GMC IEEE1588 PTP Grandmaster Clock with GPS Receiver
Important note:
Territory Voltage IEC Lead Type Image
CE and UKCA conformity
WEEE Directive
Atmosphere/Environment
Safety & Installation
AVN-GMC IEEE1588 PTP Grandmaster Clock with GPS Receiver 1
1. AVN-GMC IEEE1588 PTP Grandmaster Clock with GPS Receiver
Introduction
Fig 1-1: The AVN-GMC Front Panel
The AVN-GMCS is a PTPv2 grandmaster clock for use with AoIP
applications. IEEE1588-2008 PTPv2 (precision time protocol) is used to
synchronise all the nodes within a network. To achieve this one of the
nodes must become the master clock and distribute time packets to the
others. The AVN-GMCS is designed to perform this role simply and
accurately, enabling sub micro second synchronisation between all nodes.
TCXO, OXCO CSAC
AVN-GMCS – TCXO
AVN-GMCOS – OCXO
AVN-GMCCS – SAC
* This figure represents the holdover accuracy should the GPS signal be lost - this is an
approximation based on 1st year stability figures.
1 AVN-GMC IEEE1588 PTP Grandmaster Clock with GPS Receiver
Front Panel Display & Indicators
Front Panel Indicators
Ethernet
GPS
Sync In
Lock
GPS Mode:
Green
Yellow
Red
Ext Sync Mode:
Green
Red
Master
Green
Yellow
Red
AC PSU & DC PSU
Green
Yellow
Red
Fig 1-2: Front Panel
Indicators
AVN-GMC IEEE1588 PTP Grandmaster Clock with GPS Receiver 1
Display & Spinwheel
Fig 1-3: Display & Spinwheel
Fig 1-4: Default Screen Display
Power Button
Standby Mode
Normal Powered Mode
GPS Operation
1 AVN-GMC IEEE1588 PTP Grandmaster Clock with GPS Receiver
Rear Panel Connectors
Sync Input
75
WC (Wordclock) Output
AES-3id Output
Variable PPS (Pulse Per Second) Output
Note:
GPS Antenna
GPI/O Remote Input/Output Connector
Pin # Type Function Action
Fig 1-5: AVN-GMC Rear Panel
AVN-GMC IEEE1588 PTP Grandmaster Clock with GPS Receiver 1
Ethernet
12V DC Power Input
IEC Mains Input
Front Panel Menu Navigation
Select a Page
Exit a Page
Exit the Menu Structure
String Entry/Edit
IP Address Edit
Number Edit
Scale Edit
Select List Option
1 AVN-GMC IEEE1588 PTP Grandmaster Clock with GPS Receiver
AVN-GMC Menu Tree
AVN-GMC IEEE1588 PTP Grandmaster Clock with GPS Receiver 1
Fig 1-6: AVN-GMC Menu Tree (V2.1)
PTP ProlesMain Menu
2 AVN-GMC Webserver & Webpage Parameter Details
2. Webserver & Unit Discovery
Bonjour Network Discovery
AVN-GMC Webserver & Webpage Parameter Details 2
Fig 2-1: Standard Webpage Layout
Standard Webpage Layout
2 AVN-GMC Webserver & Webpage Parameter Details
Fig 2-2: AVN-GMC Status Screen
Status Page
Status Indication
Source->GPS
Source->Ext Sync
Lock
In GPS Sync Mode:
In Ext Sync Mode:
Master
AC and DC Power
AVN-GMC Webserver & Webpage Parameter Details 2
Device Status
Selected Profile
Number Of Satellites
Average Signal Strength
Incoming Wordclock
Outgoing Wordclock
VarPPS
2 AVN-GMC Webserver & Webpage Parameter Details
Fig 2-3: AVN-GMC Device Information Screen
Webpage Parameter Details - Device Information
Device Information
Network Information
GPS Satellite Information
AVN-GMC Webserver & Webpage Parameter Details 2
Network Settings
IP Address
Fig 2-4: AVN-GMC Network Settings Screen
Network Settings
Subnet Mask
Gateway IP Address
DHCP
Auto IP
HTTP Port
Password
2 AVN-GMC Webserver & Webpage Parameter Details
Fig 2-5: AVN-GMC PTP Profile Screen
PTP Profiles
mDNS (Bonjour)
Syslog
AVN-GMC Webserver & Webpage Parameter Details 2
PTP Profiles
Profile Select
Reset to Defaults
Delay Mechanism
Announce Interval
Announce Timeout
Sync Interval
Delay Request Interval
Peer Delay Request Interval
Priority 1 and 2
Domain
DSCP
TTL
2 AVN-GMC Webserver & Webpage Parameter Details
Fig 2-6: AVN-GMC Device Settings Screen
Device Settings
Device Settings
Device ID
Reference Selection
WC and VarPPS Output Source
Wordclock
Variable PPS
Standby
AVN-GMC Webserver & Webpage Parameter Details 2
Fig 2-7: AVN-GMC Time Settings Screen
Time Settings
Time Settings
Display Time
Date Format
Display Time Offset
Daylight Saving
Apply Daylight Saving
Daylight Saving Toggle Time and Date
Toggle Enabled
2 AVN-GMC Webserver & Webpage Parameter Details
Misc Settings
Fig 2-8: AVN-GMC Misc Settings Screen
Misc Settings
Force Time & Force Date
Auto Save on Page Exit
Factory Defaults
AVN-GMC Webserver & Webpage Parameter Details 2
Fig 2-9: AVN-GMC System Screen
System
Update Firmware
Procedure
Reboot
3 Grand Master Clocks, AVN, Ravenna & AES67
4 AVN-GMC Technical Specification
3. Grandmaster Clocks, AVN,
RAVENNA & AES67
Grand Master Clocks, AVN, Ravenna & AES67 3
AVN-GMC Technical Specification 4
4. Technical Specification For AVN-GMC
Timing Specification
Clock Specification
Connections
Equipment Type
Physical Specification
Accessories
Notes
Notes
w w w . s o n i f e x . c o . u k
t:+44 (0)1933 650 700
f:+44 (0)1933 650 726
sales@sonifex.co.uk
